os-alt

self-host the SaaS you're paying for

← all SaaS

LanguageTool

Open-source · self-hostable · replaces 1 SaaS tool on os-alt

languagetool-org/languagetool · alive · ★ 14.5k · last commit today · 2111 open issues

License: LGPL-2.1 — Server is LGPL-2.1; the premium 'Picky' rules and the n-gram corpora are paid add-ons even on self-host.

Good fit for Anyone whose Grammarly use is mostly grammar + style + multilingual checking — LanguageTool covers 30+ languages.

Weak at Tone, rewrite, and the AI 'make it sound more confident' features are not in the free OSS server.

In a terminal? npx -y github:SolvoHQ/os-alt-cli grammarly prints the Grammarly comparison table including LanguageTool. how the CLI works →

Replaces these SaaS

  • Grammarly · Writing assistant / grammar + style checker

    Run `docker run -p 8010:8010 erikvl87/languagetool`. Browser extension (LanguageTool's official one) lets you point at your server URL — replaces the Grammarly extension. For Word / Google Docs, LanguageTool ships add-ons that also accept a custom server URL. IDE: the LanguageTool LSP server works inside VSCode / IntelliJ via community plugins.

README badges for the SaaS this replaces

Maintainers and forks: drop a badge in your README to link readers from the SaaS-comparison page back to your repo.