ProWritingAid alternatives: 2 open-source picks
These 2 ProWritingAid alternatives replace it for $0, led by LanguageTool and WritingTool. All 2 are open source. License, stars and last commit checked by hand on 2026-08-29. No trials, no crippled tiers.
Grammar, style and spell checker for 30+ languages; run the server locally and keep your prose private.
licenseLGPL-2.1
runsyour server
setupnot verified by us yet — check the repo README
facts verified 2026-08-29
A LibreOffice extension with long-document checks, style statistics, profiles, and local AI; installing Java is the cover charge.
What each one is, in full: LanguageTool
last updated 2026-08-29 · no votes, no pay-to-list · just what's real
how to choose a ProWritingAid alternative
Easiest to get running
WritingTool — a one-click install, no server to maintain.
Most proven
LanguageTool, with 15,030 GitHub stars — the largest community of the 2, which usually means more answers when something breaks.
what you give up by leaving ProWritingAid
- its mature report library, integrations, and fiction-specific analysis
- cross-device sync
- large proprietary style models
- browser and office-suite extensions
- team style guides
None of the picks above covers all of it. The full verdict says which gaps matter.
ProWritingAid alternatives at a glance
| tool | license | running it | platforms | stars | active |
|---|---|---|---|---|---|
| LanguageTool | LGPL-2.1 | docker to self-host | self-hosted, web | 15,030 | 2026-09 |
| WritingTool | open source | one-click install | macos, windows, linux | 65 | 2026-09 |
why people still pay for ProWritingAid
People still pay for ProWritingAid because the paid tool is already present everywhere they write and its suggestions have been tuned across millions of documents. The recurring cost buys model quality, extension compatibility, dictionaries, releases, and sync, not just the visible interface.
questions about switching from ProWritingAid
Is there an open-source alternative to ProWritingAid?
Yes: LanguageTool, WritingTool. Every tool on this page is open source: no trials, no crippled tiers.
Can open source really replace ProWritingAid?
Our verdict is YES. LanguageTool (15k stars), WritingTool (65 stars) are mature open-source replacements for ProWritingAid — self-host with docker and stop paying. The full verdict, and what you give up by switching, is at caniopensourceit.online/prowritingaid.
What is the easiest open-source ProWritingAid alternative to set up?
WritingTool — a one-click install, no server to maintain.
What is the most popular open-source ProWritingAid alternative?
By GitHub stars, LanguageTool (15,030). WritingTool is next with 65.
