Dockerコンテナに最適なホスティングプラットフォーム (2026) – トップ 12 比較 - JA
同じ Docker コンテナには USD の費用がかかる場合があります 0 または米ドル 25 走るのに一ヶ月, そしてその違いは誰がサーバーを管理するかによって決まります. ヘッツナーがあなたにレンタルします 4 ユーロのGBボックス 5.49 (約米ドル 6) and let you install Docker yourself. Render will take your Dockerfile, build it, and run it for free, as long as you don't mind it falling asleep after 15 idle minutes. Twelve platforms made this list, split between raw VPS hosts you control and managed platforms that deploy containers for you. This guide shows which fits your workload, with renewal prices and the 2026 free-tier cuts spelled out.
最終レビュー済み: 六月 2026. 価格と機能を検証しました.
簡単な回答: For a one-click Docker box with no terminal work, 選ぶ Hostinger. For the most RAM and traffic per dollar on a real KVM server, 選ぶ ヘッツナー. To deploy a Dockerfile with zero server management, 与える (無料枠) また DigitalOcean アプリ プラットフォーム 勝つ.
にジャンプ: Hostinger ・・ カマテラ ・・ Hostwinds ・・ ホスティング.com ・・ アカマイ (Linode) ・・ DigitalOcean ・・ ASPホストポータル ・・ Vultr ・・ ヘッツナー ・・ 与える ・・ 鉄道 ・・ Fly.io
これらのプロバイダーの選択方法
Three things got a provider cut before pricing even mattered. 初め, the virtualization had to support Docker. Any host running OpenVZ or shared-kernel containers was out, because Docker needs true KVM virtualization (where each server gets its own kernel) or a purpose-built container runtime. 2番, the Docker path had to be real, not a marketing label. One provider here advertises "Docker hosting" that turns out to be Windows shared hosting, and we kept it in only to show you the difference. 三番, we ignored any plan needing more than a 36-month prepay to hit its headline rate.
Weighting reflected the Docker angle, not generic hosting. We scored one-click or Dockerfile deployment, price per GB of RAM, included traffic and egress fees, KVM confirmation, and region count. ソースは公式の価格ページでした (checked June 2026), recent provider docs, and user-review aggregators with 50-plus reviews. We did not run load tests or measure build times ourselves, and a couple of renewal rates (Hosting.com's VPS, ASPHostPortal's multi-year terms) could not be confirmed on the live product pages. Those are flagged in the sections below.
| ホスティングプロバイダー | レビュー | 総合評価 | Docker VPSは |
|---|---|---|---|
1  Hostinger
|
63.2k + |
|
$4.99 / mo. 80% オフ |
2  カマテラ
|
320 |
|
$4.00 / mo. 30 無料日数 |
3  Hostwinds
|
1.5k + |
|
$4.99 / mo. |
4  A2ホスティング
|
3.4k + |
|
$2.99 / mo. 今 -76% |
5  Linode
|
242 |
|
データなし / mo. |
6  デジタルオーシャン
|
1.9k + |
|
データなし / mo. |
7  ASPHostPortal.com
|
510 |
|
データなし / mo. |
8  ヘッツナーオンライン
|
2.3k + |
|
$4.28 / mo. |
1. Hostinger
63.2k +
4.6
ポジティブ
ポジティブ
| 保管所 | CPU | ラム | 価格 | |
|---|---|---|---|---|
| 50 GB | 1 芯 | 4 GB | $4.99 / mo. | プランを見る |
| 100 GB | 2 コア | 8 GB | $5.99 / mo. | プランを見る |
| 200 GB | 4 コア | 16 GB | $10.49 / mo. | プランを見る |
Hostinger – Best for one-click Docker without the terminal
から 4.99ドル/月 on a 24-month term, 更新日 11.99ドル/月. 1 vCPU, 4 GB RAM, 50 GB NVMe, 4 TB帯域幅, KVM. 30-日帰り.
Say you've never touched a Docker command and don't want to start now. Hostinger's KVM VPS plans ship with a Docker Manager built into hPanel, the control panel. You open a catalog, search for an app, click deploy, and the container runs. Docker Compose templates and Portainer (a visual container dashboard) install the same way, and Hostinger handles security updates on the one-click stacks. For people who want containers without a shell session, nothing else here is this hands-off.
The hardware backs it up. ホスティンガーのKVM 1 あなたに手渡します 4 GB of RAM for USD 4.99; カマテラのUSD 4 基本があなたに与えます 1 GB. Four times the memory for 99 あとセント. That headroom matters because a single 1 GB box chokes once you stack three or four containers.
Now the trade-off. You prepay 24 months to get USD 4.99, そして価格 more than doubles at renewal. There's no hourly billing, so you can't spin a box up for an afternoon and kill it. And you pick your data center once, with no live migration later.
- Built-in Docker Manager with one-click app catalog, no CLI needed
- 4 GB RAM エントリー層で, ahead of most rivals here
- 50 GB NVMe storage and 4 TB 帯域幅を含む
- 無料のSSL, 毎週のバックアップ, and the Kodee AI helper
- リニューアル jumps to USD 11.99/mo, roughly 2.4x the promo
- Term prepay only, no hourly or per-minute option
- Data center is fixed once the VPS is built
Pricing covers the VPS, パネル, およびバックアップ. There are no separate Docker fees, 珍しいです. The thing to watch is the second-term bill, not the first.
こんな方に最適: beginners who want Docker running through a GUI. 次の場合はスキップします: you need hourly billing or hate renewal jumps.
Choose Hostinger if the one-click Docker Manager is the feature you're paying for and you'll commit two years. If you'd rather not prepay or you want flat lifetime pricing, Kamatera bills by the minute and Hetzner holds its rate forever at a similar spec.
2. Kamatera
320
4.2
ポジティブ
ポジティブ
| 保管所 | CPU | ラム | 価格 | |
|---|---|---|---|---|
| 20 GB | 1 x 2.6GHz | 1 GB | $4.00 / mo. | プランを見る |
| 20 GB | 1 x 2.6GHz | 2 GB | $6.00 / mo. | プランを見る |
| 30 GB | 2 x 2.65GHz | 2 GB | $12.00 / mo. | プランを見る |
Kamatera – Best for hourly and burst Docker workloads
USD 0.014/hr or USD 4/mo. 1 vCPU, 1 GB RAM, 20 GB NVMe, 5 TBトラフィック, KVM. 30-最大 USD までの 1 日無料トライアル 100 クレジット, カードがありません.
米ドル 0.014 an hour. That's the number that defines Kamatera for container work. You build a server in any of 18 地域, run your containers, then stop the machine and stop paying. For testing an image across regions, spinning up throwaway environments, or handling a traffic spike that lasts a weekend, per-minute billing beats a monthly commitment every time.
Everything is configurable. You dial in vCPU, 羊, and disk separately instead of picking a fixed tier, and dedicated-CPU options remove the noisy-neighbor problem (zero CPU steal). Kamatera documents Docker, Compose, and Kubernetes on its KVM servers, 完全なルートアクセス. The trial is generous too: 30 days and up to USD 100 in credit without a card, which is a real sandbox, ティーザーではありません.
Hostinger が提供する場所 4 エントリー時のGB, カマテラのUSD 4 Basic starts at 1 GBと 20 GBのストレージ. Hetzner's CX23 quadruples that RAM for about USD 2 もっと. So Kamatera's value isn't the base spec, it's the billing model and the global reach.
- 真実 分単位の課金, stop the server to stop charges
- 18 データセンターのリージョン全体 4 大陸
- Fully custom CPU, 羊, とストレージ; dedicated-CPU option
- 30-一日トライアル, 米ドルまで 100 クレジット, カードは必要ありません
- No one-click Docker template, you install it yourself
- 1 GB base RAM is thin for multi-container stacks
- 従来の返金保証はありません (代わりにトライアル)
Pricing is flat with no renewal markup, 時間単位または月単位で請求される. The 1 GB tier is fine for a single service; budget for 2 GBまたは 4 GB once you run a stack. Storage stays at 20 GB unless you add more.
こんな方に最適: CI runs, regional testing, short-lived containers. 次の場合はスキップします: you want a guided setup or a fat box for cheap.
Pick Kamatera when you spin containers up and tear them down, or need a region Hostinger and Hetzner don't have (東京, シドニー, テルアビブ). If you run one always-on container and want maximum RAM per dollar, Hetzner is the better buy. If you want a click-to-deploy panel, ホスティンガーに行く.
3. Hostwinds
1.5k +
4.4
ポジティブ
ポジティブ
| 保管所 | CPU | ラム | 価格 | |
|---|---|---|---|---|
| 30 GB | 1 芯 | 1 GB | $4.99 / mo. | プランを見る |
| 30 GB | 1 芯 | 1 GB | $8.24 / mo. | プランを見る |
| 50 GB | 1 芯 | 2 GB | $9.99 / mo. | プランを見る |
Hostwinds – Best cheap unmanaged KVM for a single app
から 4.99ドル/月, 一律価格設定. 1 vCPU, 1 GB RAM, 30 GB SSD, 1 TB帯域幅, 1 Gbpsポート, KVM. 72-時間分の払い戻しウィンドウ.
Where Hosting.com's entry VPS renews near USD 9, Hostwinds holds USD 4.99 アカウントの存続期間中. That flat pricing is the reason to look here. It's an unmanaged Linux VPS on KVM, so Docker runs natively once you SSH in and install it. You also get an hourly cloud-billing option if you'd rather not commit monthly, plus nightly snapshots even on the unmanaged tier, which most budget hosts charge extra for.
At the same USD 4.99, ホストウィンドが与える 30 GB of SSD against Hosting.com's 20 GB NVMe, and it holds that price while Hosting.com climbs. The catch shows up on the map. Hostwinds runs only three data centers: シアトル, ダラス, とアムステルダム. No Asia, オセアニアはありません, 南米はないよ. If your users sit in Singapore, latency will hurt, and Kamatera or Akamai will serve them far better.
The refund window is the other weak spot. あなたが得る 72 時間, このリストの中で一番短い. Test fast or you're committed.
- フラット米ドル 4.99 更新の増加なし
- 30 GB SSD and a 1 Gbps port at entry
- Nightly snapshots included on unmanaged plans
- Monthly or hourly cloud billing
- それだけ 3 データセンター, all US and EU
- 72-hour refund window is harsh
- No Docker tooling, pure DIY on the VPS
Pricing is honest: what you sign up for is what you renew at. The 1 GB RAM tier suits one container or a small Compose file. ステップアップ 2 GB if you plan to run a database alongside your app.
こんな方に最適: a budget single-container app served to US or EU users. 次の場合はスキップします: you need Asian regions or a long trial.
Hostwinds wins for a cheap, flat-priced KVM box when your audience is North American or European. If you need a region outside those three cities, アカマイの 41 場所やカマテラの 18 leave it behind. If you want Docker pre-installed, Vultr's one-click image saves you the setup.
4. A2 Hosting
3.4k +
4.5
ポジティブ
ポジティブ
| 保管所 | CPU | ラム | 価格 | |
|---|---|---|---|---|
| 20 GB | 1 芯 | 1 GB | $2.99 / mo. | プランを見る |
| 75 GB | 2 コア | 2 GB | $7.99 / mo. | プランを見る |
| 150 GB | 4 コア | 4 GB | $9.99 / mo. | プランを見る |
Hosting.com – Best AMD EPYC NVMe box, if you ignore the renewal
から 4.99ドル/月 プロモーション, 周りを更新します 9ドル/月. 1 vCPU, 1 GB RAM, 20 GB NVMe, AMD EPYC, KVM, 完全なルート. 8 データセンター.
Start with the number that bites: 最も安い "滑走路 1" unmanaged VPS launches at USD 4.99 and renews near USD 9, おおよそ 80% ジャンプ. 悪い, VPS plans here sit outside the money-back guarantee, so there's no refund safety net if you change your mind. This is the rebranded A2 Hosting (the change landed in April 2025), and the old reputation for steep renewals carried over.
では、なぜそれを含めるのか? The hardware is good. You get AMD EPYC CPUs and NVMe storage with full root access on KVM, which runs Docker cleanly after a manual install. For a developer who wants a fast, no-frills box and reads the renewal terms before signing, それは届けます.
Hosting.com's USD 4.99 becomes about USD 9 更新時; ヘッツナーのユーロ 5.49 (約米ドル 6) 決して動かない, and it carries 4 GB of RAM to Hosting.com's 1 GB. On a pure cost-per-resource basis over two years, that's not close. Hosting.com's argument is the EPYC silicon and the in-house 24/7 サポート, 価格ではありません.
- AMD EPYC CPUs and NVMeストレージ 入場時
- Full root on KVM, Docker installs cleanly
- Optional in-house 24/7 infrastructure support
- Renewal climbs だいたい 80% to near USD 9
- VPS plans excluded from the money-back guarantee
- No one-click Docker, manual install only; 8 地域
The entry price is real but temporary. Calculate the second-term cost before you commit, because there's no refund to fall back on. 保管場所 20 GBと 0.5 TB transfer is modest, so heavier workloads need a higher tier.
こんな方に最適: developers who want EPYC and NVMe and will eat the renewal. 次の場合はスキップします: you want a refund window or flat pricing.
Choose Hosting.com if the AMD EPYC hardware and 24/7 support justify the renewal for you. If you want the same KVM-plus-Docker setup without an 80% price climb, Hetzner and Hostwinds both hold their rates, and Vultr adds a one-click Docker image on top.
5. Linode
242
3.0
中性
中性
Akamai Cloud (Linode) – Best global footprint and managed Kubernetes
5ドル/月 (0.0075米ドル/時間, capped). 1 vCPU, 1 GB RAM, 25 GB SSD, 1 結核転送, KVM. 従量課金制, 更新マークアップなし.
41 地域全体 36 都市. Since Akamai bought Linode, the footprint went from 11 locations to one of the widest in cloud hosting, covering North America, ヨーロッパ, アジア太平洋, 南アメリカ, とインド. If your containers need to sit close to users in several continents, this is the reach that delivers it, and the billing is flat hourly with a monthly cap, so no promo-to-renewal surprise.
For Docker, the Linode Marketplace offers a one-click Docker deploy (it provisions via StackScripts and Ansible and can set up Docker Compose on first boot). For orchestration, LKE (Linode Kubernetes Engine) gives you managed Kubernetes when a single host isn't enough. Both run on KVM Linux instances with full developer access. It's worth pairing with our broader クラウドホスティングの比較 if multi-region is your priority.
Akamai's USD 5 Nanode doubles DigitalOcean's USD 4 Droplet on memory (1 GB 対 512 MB) for a dollar more, which makes it the better starter box of the two. 正直な注意点が 1 つあります: Akamai flags the Nanode shared-CPU line as older hardware aimed at dev and test, so production loads want a higher tier.
- 41 地域, among the widest reach here
- Marketplace one-click Docker plus managed Kubernetes (LKE)
- Flat hourly billing with a monthly price cap
- Mature docs and a large community
- Nanode uses legacy hardware for dev/test
- Unmanaged and developer-oriented, little hand-holding
- You handle OS and software updates yourself
Pricing is predictable: USD 5/mo or the hourly equivalent, no markup later. The 1 GB Nanode handles a couple of containers; move up a tier for anything serving real traffic. Egress past 1 TB is billed per GB.
こんな方に最適: multi-region apps and teams heading toward Kubernetes. 次の場合はスキップします: you want the cheapest possible box or managed hand-holding.
Akamai is the pick when geographic spread or a path to managed Kubernetes drives the decision. If you only serve one region and want more RAM per dollar, Hetzner wins outright. If you want a free managed Kubernetes control plane, Vultr's VKE costs nothing for the control layer.
6. Digital Ocean
1.9k +
3.7
中性
中性
DigitalOcean – Best for deploying a Dockerfile without a server
Droplets from 4ドル/月 (512 MB); App Platform containers from 5ドル/月. KVM, 秒単位の課金, 米ドル 200 の功績 60 日々.
Picture a developer who has a Dockerfile and no interest in patching an OS. DigitalOcean's App Platform takes the container, それを構築します, and runs it from USD 5/mo, no server to manage. That's a different product from a raw VPS, and it's the cleanest no-ops path on this list short of Render. If you do want the box, the 1-Click Docker Droplet ships with Docker CE and Compose pre-installed.
The full container story runs three layers deep: a Marketplace Docker Droplet for DIY, App Platform for managed container deploys, and DOKS (DigitalOcean Kubernetes) for orchestration. All on KVM, all with the documentation DigitalOcean is known for. Billing went per-second on January 1, 2026, so you pay only for the minutes you run.
DigitalOcean's App Platform runs a container from USD 5/mo, two dollars under Render's USD 7 スターター, though Render's free tier undercuts both. The weak spot is the USD 4 滴: で 512 MBのRAM, it's too small for a real Docker workload, so plan on the USD 6 ティア (1 GB) as your true starting point.
- App Platform deploys containers from a Dockerfile, no server ops
- 1-Click Docker Droplet with Compose pre-installed
- マネージド Kubernetes (ドキュメント) for orchestration
- Per-second billing and USD 200 トライアルクレジット
- 512 MB entry Droplet too small for Docker; start at USD 6
- No money-back window, only the trial credit
- Bandwidth overages billed per GB
Droplets bill per second; App Platform is plan-based from USD 5. The headline USD 4 is a teaser for Docker purposes; treat USD 6 (1 GB) as the floor for a working container, more if you run a stack.
こんな方に最適: shipping a Dockerfile with zero server management. 次の場合はスキップします: you want the lowest raw-VPS price.
Go DigitalOcean when App Platform's no-ops deploy or the documented Droplet-to-Kubernetes path is what you need. If you want a free tier for the same Dockerfile flow, Render beats it. If you want raw RAM per dollar on a VPS, Hetzner is far cheaper.
7. ASPHostPortal.com
510
4.6
ポジティブ
ポジティブ
ASPHostPortal – The "Docker hosting" that isn't a container VPS
"ホストワン" から USD 3.81/mo (5-年前払い). 5 GB SSD, 60 GB 月間帯域幅, Windows shared hosting with Plesk. 30-日帰り.
Here's the contrarian take: ASPHostPortal markets "Docker Hosting," but what you actually buy is Windows shared hosting (サーバ 2019/2022) with a Plesk Docker extension bolted on. It's not a Linux container VPS, and it's not KVM. The "single-click Docker" works through the Plesk panel, but a shared Windows plan doesn't give you root, a Linux kernel, or proper resource isolation, which is what real Docker workloads need.
We kept it on the list precisely to flag the difference. If you searched "Docker hosting" and landed on a cheap Windows shared plan, you'd want to know it can't do what a Hetzner or Vultr box does. ASPHostPortal's Host One gives you 5 GB of disk and 60 月間帯域幅 GB; ホストウィンズの米ドル 4.99 KVM gives 30 GBと 1 TB. Six times the storage, and it actually runs Linux Docker.
The footprint is broad (その周り 11 に 12 場所) and there's a 30-day money-back guarantee, which is fairer than Hosting.com's no-refund VPS policy. But the renewal rate past the 5-year promo isn't published, and the resource ceiling is too low for container work of any size.
- 30-日返金保証
- Plesk GUI for users who fear the command line
- Broad data center footprint
- Windows shared hosting, not a Linux container VPS
- それだけ 5 GB disk and 60 GB 月間帯域幅
- Renewal pricing past the multi-year promo unpublished
米ドル 3.81 rate needs a 5-year prepay, and what happens after that isn't on the page. For anything resembling a production container, this tier runs out of room immediately.
こんな方に最適: Plesk users on Windows who want a managed panel demo of Docker. 次の場合はスキップします: you actually need to run Linux containers, which is most people.
正直に, almost everyone reading a Docker guide should skip this and take a real KVM VPS. If you want a one-click Docker panel done right, Hostinger's Docker Manager runs on proper Linux KVM. If you want cheap Linux Docker, Vultr or Hetzner cost about the same and do the job.
Vultr – Best balance of cheap KVM and free managed Kubernetes
2.50ドル/月 (IPv6のみ) or USD 5/mo with IPv4. 512 MBから 1 GB RAM, 10 に 25 GB NVMe, KVM. 32+ 地域, 使った分だけ.
米ドル 2.50 a month is the headline, with one asterisk: that tier is IPv6-only. Add a public IPv4 address and you're at USD 5/mo for 1 GBのRAMと 25 SSDのGB. VultrのUSD 2.50 box matches DigitalOcean's 512 MB, but DigitalOcean charges USD 4 there; IPv4を使用した場合, VultrのUSD 5 plan ties Akamai's Nanode while adding 32-plus regions on top.
For Docker, Vultr's Marketplace has a one-click Docker app (Ubuntu 24.04 with docker-ce ready to go), plus a k3s app for lightweight Kubernetes. The differentiator is VKE, Vultr Kubernetes Engine, whose control plane is free. Hyperscalers charge roughly USD 70 a month for the equivalent managed control layer, so if Kubernetes is on your roadmap, that's real money saved. Everything runs on full KVM virtualization with pay-as-you-go billing.
The 32-plus region count rivals Akamai's reach, and NVMe storage comes standard. 正直な獲物: the cheapest box drops IPv4, と 512 MB of RAM won't carry a multi-container stack, so budget for the USD 6 High Performance tier if you're running more than one service.
- One-click Docker image plus free VKE control plane
- 32-plus regions, NVMeストレージ規格
- USD 2.50/月から, true pay-as-you-go
- k3s app for lightweight Kubernetes
- 米ドル 2.50 tier is IPv6のみ, no public IPv4
- 512 MB base RAM is tight for stacks
- Prepaid credit model, no refund guarantee
Billing is usage-based with no renewal markup. Read the IPv4 line before you buy: the real entry for a normal setup is USD 5/mo, 米ドルではありません 2.50. NVMe and the free Kubernetes control plane are where the value sits.
こんな方に最適: cheap Docker now with a free path to managed Kubernetes later. 次の場合はスキップします: you need lots of RAM per dollar today.
Vultr is the smart middle ground: cheap KVM, one-click Docker, and free VKE when you scale up. If you want maximum RAM and traffic for the price right now, Hetzner beats it on raw specs. If you want zero server management, Render or DigitalOcean App Platform take the Dockerfile off your hands.
8. Hetzner Online
2.3k +
3.1
中性
中性
| 保管所 | CPU | ラム | 価格 | |
|---|---|---|---|---|
| 25 GB | 1 芯 | 1 GB | $4.28 / mo. | プランを見る |
| 50 GB | 2 コア | 2 GB | $7.58 / mo. | プランを見る |
| 100 GB | 2 コア | 4 GB | $13.06 / mo. | プランを見る |
Hetzner – Best RAM and traffic per euro for real Docker
CX23 from about USD 6/mo (ユーロ 5.49); ARM CAX11 EUR 5.99. 2 vCPU, 4 GB RAM, 40 GB NVMe, 20 TBトラフィック, KVM. 時間単位の請求, capped.
Hetzner raised its cloud prices on June 15, 2026, pushing the cheapest CX23 from EUR 3.99 ユーロです 5.49 and the ARM CAX11 from EUR 4.49 ユーロです 5.99. Even after that rise, nothing here matches its cost per resource. Hetzner's CX23 carries 4 GBのRAMと 20 TB of traffic for about USD 6; VultrのUSD 5 IPv4 plan gives 1 GBと 1 TB. For Docker, where RAM is the wall you hit first, that's a different league.
Setup is easy. Hetzner Cloud offers a one-click "Docker CE" app that pre-installs Docker at server creation, and full cloud-init support automates the rest. It's all KVM, so containers run natively, そしてその 20 TB of included traffic means egress-heavy workloads (image pulls, APIレスポンス) won't surprise you on the bill. There's even an ARM option (CAX11) for cheap multi-architecture image builds.
The limits are honest. Hetzner runs only six data centers (ドイツ, フィンランド, シンガポール, and two in the US), so global reach trails Akamai and Vultr. There's no managed Kubernetes control plane to match VKE either. And the June price rise means the old sub-EUR-4 deals you'll see quoted elsewhere are stale.
- 4 GB RAM, 20 TBトラフィック for about USD 6
- One-click Docker CE app plus cloud-init
- NVMe storage and KVM virtualization
- アーム (CAX11) option for multi-arch builds
- 六月 2026 price rise, 大体上まで 37%
- それだけ 6 データセンター, no Asia beyond Singapore
- No managed Kubernetes control plane
Billing is hourly with a monthly cap and no renewal markup; existing servers keep their old rate unless rescaled. The 4 GB CX23 is enough for a genuine multi-container stack, which is why it reads as the value pick despite the increase.
こんな方に最適: one always-on box running several containers on a budget. 次の場合はスキップします: you need many global regions or managed Kubernetes.
Hetzner wins on raw RAM and traffic per euro, 終点. If your users span Asia, オセアニア, または南アメリカ, アカマイの 41 regions serve them better. If you want managed Kubernetes without paying for the control plane, Vultr's free VKE is the move.
Render – Best free tier and zero-config Dockerfile deploys
無料 web service (512 MB, 0.1 vCPU, 750 hrs/mo); スターター 7ドル/月 常時オン. Deploys from Dockerfile, 5 地域.
Render kept the thing almost everyone else cut: a real free tier. You point it at a repo, it auto-detects your Dockerfile, builds the image, and runs it for nothing, と 750 instance hours and 100 GB of bandwidth a month. The trade is that free web services spin down after 15 idle minutes and take about a minute to wake, so it's for side projects and demos, 生産ではありません.
Deployment is the easy part. Render builds from a Dockerfile automatically or runs a prebuilt image from a registry, with no buildpack configuration to fuss over. To kill the cold starts, the Starter plan runs always-on at USD 7/mo. その米ドル 7 sits above DigitalOcean App Platform's USD 5 container tier, but Render still runs a container for free where Railway and Fly.io now charge from the first hour, so the cheapest always-on alternatives are Railway's USD 5 Hobby or Fly's roughly USD 2 machine.
Pricing is flat and plan-based, which makes it predictable, no usage metering on the basic tiers. The limits are the five-region footprint (オレゴン, オハイオ州, バージニア, フランクフルト, シンガポール) and the jump from Starter to the USD 25 Standard tier once you outgrow 512 MB.
- Genuine free tier と 750 hours a month
- Auto-detects and builds from a Dockerfile
- 平らな, 予測可能な価格設定, no usage metering
- Managed databases and cron jobs alongside services
- Free services sleep after 15 分 idle
- それだけ 5 地域
- Standard tier jumps to USD 25/mo
Free covers hobby use; 米ドル 7 Starter buys always-on. The price climbs quickly above that, so map your RAM needs before committing to Render for production.
こんな方に最適: hobby projects and Dockerfile deploys you want free or cheap. 次の場合はスキップします: you need a box you control or sub-second cold starts.
Render is the free pick and the simplest Dockerfile-to-URL flow here. If you need always-on at the lowest price, Fly.io's per-second machines run cheaper. If you want full control of the underlying server, any KVM VPS (ヘッツナー, Vultr) gives you root that Render doesn't.
Railway – Best developer experience for Dockerfile deploys
趣味 5ドル/月 (米ドルを含む 5 使用クレジット), then metered. Pro USD 20/mo per seat. Dockerfile or Railpack builds, NA/EU/APAC regions.
Where Render gives you a free tier that sleeps, Railway trades that away for polish. Its Hobby plan is USD 5/mo with USD 5 of usage baked in, and the developer experience is the best in this group: push to a branch and it deploys, with managed Postgres, MySQL, レディス, or Mongo wired in over private networking. It builds from a Dockerfile, or via Railpack, its own builder that became the default on March 4, 2026.
Railway runs on its own bare-metal fleet (Railway Metal) アムステルダムで, シンガポール, バージニア, そしてカリフォルニア, bursting into the big clouds when needed. 鉄道の米ドル 5 Hobby lands two dollars under Render's USD 7 スターター, but the comparison isn't clean: Railway meters CPU, 羊, and egress on top of that USD 5, while Render's USD 7 is fixed. For steady workloads Railway can be cheaper; for spiky ones it can swing higher.
The honest change: Railway removed its permanent free tier. New users get a one-time USD 5 トライアルクレジット (カードがありません, まで 30 日々), then drop to a Free plan with about USD 1/month of credit, which barely runs anything. So budget the USD 5 Hobby as your real floor.
- Best-in-class deploy UX, Git push to ship
- Builds from Dockerfile or Railpack
- Managed databases with private networking
- Own bare-metal fleet across NA, EU, アジア太平洋
- No permanent free tier, トライアルクレジットのみ
- Usage metering makes spiky-workload bills unpredictable
- Pro plan adds USD 20 per seat
米ドル 5 Hobby base plus metered usage is the model; there's no promo-to-renewal trick, just your actual consumption. Watch egress and always-on RAM if your costs need to stay flat.
こんな方に最適: developers who want the smoothest Dockerfile-to-production flow with managed databases. 次の場合はスキップします: you need a free tier or fixed monthly cost.
Railway earns its place on developer experience and the bundled databases. If you want a free tier for the same workflow, Render is the only one here that still offers it. If predictable flat billing matters more than UX, Render's USD 7 Starter or a fixed-price VPS won't surprise you at month-end.
Fly.io – Best for global edge containers as microVMs
従量課金制, 毎秒. Smallest machine about USD 2.02/mo (256 MB); realistic app USD 8 月25日まで. 18 地域, egress USD 0.02 to 0.12/GB.
About USD 2.02 a month for an always-on machine, the lowest entry here. Fly.io takes your Docker image and runs it as a Firecracker microVM (a hardware-isolated mini-VM), then distributes it across 18 地域, the widest spread of any managed platform on this list. For an app that needs to sit physically close to users worldwide, that edge distribution is the draw, and the per-second billing means you pay only for what runs.
The deployment model is unusual in a good way: your container literally becomes a VM, which gives stronger isolation than a shared container runtime. Fly's smallest always-on machine runs about USD 2.02/mo, less than half Railway's USD 5 Hobby floor. But egress fees (USD 0.02/GB in North America and Europe, up to USD 0.12/GB in Africa and India) can erase that gap quickly, and a realistic small app with restarts and traffic lands closer to USD 8 月25日まで.
Like Railway, Fly.io ended its free allowances. New organizations get a short trial (a couple of VM-hours or seven days), then it's card-on-file pay-as-you-go. The per-second-plus-egress model is the least predictable here, so it rewards people who watch their metrics.
- Runs Docker images as Firecracker microVMs
- 18 地域, the widest edge reach of the PaaS group
- Cheapest entry, about USD 2.02/mo always-on
- 秒単位の課金, scale to zero possible
- 無料枠なし, short trial only
- Metered egress, up to USD 0.12/GB in some regions
- Least predictable billing of the managed platforms
There are no fixed plans; you pay per second for compute plus per GB for egress. 米ドル 2.02 figure is real for a tiny idle-ish service, but model your traffic, because egress is where the bill grows.
こんな方に最適: globally distributed apps that need edge presence and strong isolation. 次の場合はスキップします: you want predictable flat bills or a free tier.
Fly.io is the choice when global edge distribution and microVM isolation are the point. If you want predictable monthly cost, Render's flat Starter or a fixed VPS beat it. If you need a free tier to start, only Render still has one.
How to Choose a Docker Host by Workload
機能チェックリストを忘れる. The right host depends on what your containers actually do. Here are the workloads that map cleanly to a pick.
One box, several containers: Budget under USD 7/mo? Hetzner CX23 at about USD 6/mo gives you 4 GBのRAMと 20 TB のトラフィック, enough for several containers plus a database. Skip Hostinger here unless you want the GUI, because its USD 11.99 renewal beats the purpose of going budget. Skip the USD 4 DigitalOcean Droplet too: 512 MB chokes a real stack.
Dockerfile, サーバー管理がない: Render's free tier handles side projects (accept the 15-minute sleep), and its USD 7 Starter removes the cold starts. For always-on at a lower base, DigitalOcean App Platform starts at USD 5/mo. Choose Railway's USD 5 Hobby instead only if you want bundled managed databases and don't mind usage metering on top.
Short-lived or CI containers: For boxes you spin up and tear down, Kamatera's per-minute billing (USD 0.014/hr) and 30-day USD 100 trial make throwaway environments nearly free. Hetzner and Vultr also bill hourly, but Kamatera's 18 regions and no-card trial win for disposable test boxes. A fixed monthly VPS like Hostwinds wastes money on workloads that run two hours a day.
Heading toward Kubernetes: Vultr's VKE gives you a free control plane (versus roughly USD 70/mo at the hyperscalers), so you pay only for worker nodes. Akamai's LKE is the alternative if you want its 41-region reach. Don't reach for either until a single host genuinely can't hold your containers; managed Kubernetes adds complexity you don't need for three services.
Global edge presence: Fly.io runs your image as a microVM across 18 regions with per-second billing. If you'd rather control the servers yourself, pair Akamai or Vultr regions manually. Still weighing a plain server against a managed platform? 私たちの 一般的な VPS ホスティング ガイド covers the control-versus-convenience trade in more depth.
よくある質問
Do I need a VPS to run Docker, or can shared hosting do it?
For real Docker work, you need a VPS or a container platform, 共有ホスティングではない. Docker needs root access and a Linux kernel it can control, which a KVM VPS like Hetzner, Vultr, or Hostwinds provides. 一部のホストは宣伝します "Docker" on Windows shared plans (ASPHostPortal is one), but those lack the isolation and root access containers depend on. If you don't want to manage a server at all, a platform like Render or DigitalOcean App Platform runs your container for you.
Which Docker host has a real free tier in 2026?
Render is the only platform here that kept a genuine free tier, と 750 instance hours a month, though free services sleep after 15 idle minutes. Railway and Fly.io both ended their free allowances in 2024 に 2025; they now offer short trial credits only. For an always-on container on a budget, the cheapest paid options are Fly.io's roughly USD 2/mo machine or Railway's USD 5 Hobby plan.
Is a managed platform like Railway cheaper than a Hetzner VPS?
通常はそうではありません, once you're past hobby scale. Railway's Hobby plan starts at USD 5/mo and meters CPU, 羊, and egress on top, while Hetzner's CX23 is a flat EUR 5.49 (約米ドル 6) と 4 GBのRAMと 20 TB のトラフィックが含まれる. You pay Railway extra for the convenience of not managing a server. If your workload is steady and you're comfortable with SSH, the VPS is cheaper; if you value zero ops, the platform earns its premium.
Do I need Kubernetes to run Docker containers?
いいえ. A single Docker host with Docker Compose runs multi-container apps fine, and most projects never outgrow that. Kubernetes earns its keep when you need automatic scaling, 自己回復, and rolling deploys across many nodes. If you do reach that point, Vultr's VKE and Akamai's LKE offer managed control planes, and Vultr's control plane is free. それまでは, a Compose file on one KVM box is simpler and cheaper.
最終評決
Most people overthink Docker hosting. If you want a container running today with no command line, Hostinger deploys one through its Docker Manager, just plan for the USD 11.99 リニューアル. If you'd rather own a real server and squeeze the most out of every dollar, ヘッツナー is the clear value winner: 4 GBのRAMと 20 TB of traffic for about USD 6, even after the June 2026 price rise.
For shipping a Dockerfile without touching a server, 与える is the free starting point and DigitalOcean アプリ プラットフォーム the cheapest always-on managed option. Need to spin containers up and down by the hour? カマテラ. Building toward Kubernetes? Vultr hands you a free control plane. Going global at the edge? Fly.io runs your image as a microVM across 18 地域. And steer clear of any "Docker hosting" that turns out to be Windows shared hosting; if it can't give you root on Linux, it can't really run your containers.
If you're still deciding between a managed platform and a server you control, 私たちを読む container VPS guide and our roundup of Linux VPS ホスティング for the broader picture. Both go deeper on the virtualization and management questions that decide how smoothly Docker runs.