LanguageTool Hosting Live In 5 Minutes

Deploy LanguageTool hosting and point your editors, extensions and pipelines at a self-hosted grammar checking API you own, instead of the public server. xCloud runs the pinned LanguageTool 6.8 image with a properly sized JVM heap and publishes the API over HTTPS in minutes. There is nothing to configure: send a check request and read the result. The API is open, so decide who may reach it.

Deploy your LanguageTool

No terminal
No technical skills needed
No lock-in, cancel anytime

What is LanguageTool?

Self-hosted LanguageTool is open-source proofreading software for English, Spanish, French, German, Portuguese, Polish, Dutch and more than 20 other languages. Its README says it finds many errors that a simple spell checker cannot detect, and the core is freely available under the LGPL 2.1 or later. Deployed here as its HTTP API server, it stands in for a hosted grammar checker, and the same engine serves the desktop and browser clients that can point at your own server.

On xCloud the template runs the erikvl87/languagetool 6.8 image, one of the community Dockerfiles the upstream project links from its README, as a single container pinned by immutable digest. HTTPS is published on your domain. It is stateless, with no database or volume, and the API is open and unauthenticated by default.

From Sign-Up to a Live Grammar API In Just 3 Easy Steps

A grammar API normally means a container, JVM tuning, a domain and a certificate before the first check. This is the same result without assembling any of it.

Step 01
Sign Up
Create your xCloud account and pick LanguageTool from the OneClick catalog. Choose your domain and target server. There is nothing else to fill in: LanguageTool has no accounts, admin user or setup wizard.
Step 02
We Deploy It For You
One click. We bring up the official LanguageTool 6.8 image, pinned by immutable digest, and publish it over HTTPS on your domain.
Step 03
Send A Check Request
POST text=A simple test. and language=en-US to /v2/check on your domain and read the JSON matches back, or GET /v2/languages to list what is supported. Then point your editor integration at the same URL.

Everything LanguageTool Does, On Your Own Server

LanguageTool runs in full here: the /v2/check and /v2/languages API for more than 20 languages, from a JVM sized to hold the language models.

Grammar, Style And Spelling
The same engine behind the official desktop app, browser extensions and editor integrations.
More Than 20 Languages
List them with /v2/languages and check text in any of them.
Drop-In For The Public API
Point your own tools at your domain instead of the public api.languagetool.org server.
JVM Sized Properly
Heap set to 512 MB to 1 GB so the language-identification model has headroom, hence the 1.5 GB floor.
Limits When You Want Them
langtool_requestLimit, langtool_maxTextLength and friends pass straight through to the server from the environment.
Stateless
No database, no volume, nothing written to disk; restarts are free.

Everything You Need To Run Your Grammar Checks 24/7

Managed hosting for LanguageTool, so the parts that keep it online are not your problem.

LanguageTool 6.8 deployed instantly
Official pinned image digest
No accounts or setup wizard to configure
Kept behind xCloud nginx on port 8010
Free SSL certificate
Server backups and snapshots
Server security updates included
30+ server locations
Unused balance refunded

What You Can Do With LanguageTool

Check text from your own tools
Post text to the /v2/check endpoint from editors, scripts or pipelines and get grammar, style and spelling matches back.
Keep text off third-party servers
Requests go to your own Cloud VPS, so the text your team writes is not sent to a public checking server.
Serve a whole team
Point several clients at one server, instead of every machine running its own copy of the checker.
Support many languages
Use the same API for English, German, French, Spanish and the other languages the README lists.

LanguageTool vs Alternatives

Hosted grammar checkers: A hosted checker receives every sentence you submit. As a languagetool alternative to hosted grammar checkers, this server runs on your own Cloud VPS, so submitted text stays on infrastructure you control.
Harper: Harper is a privacy-first grammar checker with its own xCloud template that runs locally in the browser. In a languagetool vs harper choice, LanguageTool checks text in more than 20 languages through a server API.
The public LanguageTool server: Upstream documents a public HTTP API you can use without hosting anything. Your own server gives you control over who can reach it and where requests go.
A browser spell checker: LanguageTool's README says it finds many errors that a simple spell checker cannot detect, covering grammar and style as well as spelling.

Simple Pricing. Everything Included.

Dedicated Cloud VPS sizes, pre-configured for LanguageTool hosting. Pick the one that fits, and resize any time.

Cloud VPS 6 GB

Cloud VPS 16 GB

More CPU and memory for concurrent checks and larger texts.

$59.99per month

16 GB RAM
6 vCPU cores
200 GB NVMe SSD
30 TB
Unlimited

Get started

Cloud VPS 24 GB

LanguageTool next to Wallabag and other writing tools on one server.

$84.99per month

24 GB RAM
8 vCPU cores
300 GB NVMe SSD
30 TB
Unlimited

Get started

Every size is a dedicated Cloud VPS we provision, patch, monitor and restore. Billed monthly with no lock-in — delete the server and the unused balance comes back to your account. LanguageTool itself is free and open source under the LGPL-2.1 licence.

Docker hosting

Already Have a Server? Bring Your Own

Connect any VPS — DigitalOcean, Vultr, Linode, AWS, Hetzner or bare metal — and deploy LanguageTool on it through the same panel, for a per-server management fee instead of a Cloud VPS rental.

Free

Start your journey without cost.

$0forever

1 server
10 sites

Start free

Starter

Professional

The same platform, discounted at 6–10 servers.

$4per server / month

6–10 servers
Unlimited sites
All features included
Bring any VPS provider

Get started

Agency

The same platform, discounted at 11+ servers.

$3per server / month

11+ servers
Unlimited sites
All features included
Bring any VPS provider

Get started

Priced per connected server, so your rate adjusts automatically as you add or remove servers. You pay your own provider for the server itself.

Self-managed hosting

Ready To Run Your Own Grammar API?

LanguageTool on xCloud runs on a dedicated Cloud VPS that we provision, patch, monitor and restore. Deploy faster. Own the server. Stay in control.

Fast Provisioning
Deploy faster using an xCloud Managed Server built with optimized stacks and high-speed SSDs.
Enterprise-grade security
Protect your infrastructure with a free SSL certificate and more advanced security features at no additional cost.
Intuitive Control Panel
From Server creation to application deployment, everything can be managed from our intuitive control panel.

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Frequently Asked Questions

Feel free to contact us with any questions or concerns you may have.

How much RAM does LanguageTool need?

The manifest asks for 1 CPU core, 1536 MB of RAM and 2 GB of disk as a floor. The JVM heap is set to 512 MB minimum and 1 GB maximum, so the language-identification model has headroom. The 6 GB Cloud VPS sold on this page is well above that.

Is LanguageTool free and open source?

Yes. The README says the LanguageTool core is freely available under the LGPL 2.1 or later, per the COPYING file at the v6.8 tag, so no licence fee applies; the dedicated Cloud VPS is the one xCloud bill.

Can you run LanguageTool with Docker?

Yes, and this is LanguageTool Docker hosting prepared for you: the template runs the erikvl87/languagetool 6.8 image as one container, pinned by immutable digest, with HTTPS on your domain, so you get LanguageTool cloud hosting on your own VPS.

What is the difference between LanguageTool and Harper?

Harper is a privacy-first grammar checker that runs locally in the browser, while LanguageTool is a server API that covers more than 20 languages. Harper has its own xCloud page, so compare them against the languages you write in.

Harper hosting

Is the LanguageTool API open to the internet?

Yes, by default. LanguageTool ships with no accounts and this template configures no rate limiting or text-length limit, so anyone who can reach the domain can submit text and consume CPU. Restrict it with xCloud Basic Authentication or IP management.

Which LanguageTool image does this use?

erikvl87/languagetool 6.8, one of the community Dockerfiles that the upstream README links to. It tracks LanguageTool releases and is pinned by digest, so the install stays on that build until you adopt a newer template version.

How do I test my LanguageTool server?

Send a request with curl: post text=A simple test and language=en-US to your domain's /v2/check path, and you should get a JSON list of matches back. Test your real client, such as an editor extension, too, before relying on it.

Does LanguageTool store my text?

No. The server here is a stateless HTTP process with no database or volume, so it keeps no user data after a request. The usual caveat applies: whoever can reach the server can send it text, and your reverse proxy logs may record requests.

What should I back up on a LanguageTool server?

Nothing on the server: it has no database and no persistent volume, and it reloads its models on start. Keep a note of any langtool settings in your environment file, and use server-level backups for the server itself.

How do I upgrade LanguageTool?

Nothing upgrades it for you: the install stays on pinned release 6.8 until you adopt a newer template version. Read the upstream release notes first, then send a test check request, since rules and models change between releases.

Can I limit who uses my LanguageTool server?

Yes, through xCloud rather than LanguageTool: put Basic Authentication or IP management in front of the domain. Remember that browser extensions and editors must then send the same credentials, so test each client after you switch it on.

Can I cancel anytime?

Yes. There is no lock-in — cancel any time. Hosting is billed monthly and charged for what you actually use, so when you delete the server the unused balance is refunded to your account, less up to 10% in payment-processing fees.