WWriterAlts

LanguageTool

Open-source grammar and style checker with self-hosting option

★ Stars15.2k15,159 on GitHub
Last commit19 Oct 2026
LicenceLGPL-2.1SPDX, from the repository
View on GitHub ↗

From GitHub, fetched 19 Oct 2026.

Visit languagetool.org ↗

LanguageTool is an open-source proofreading engine for grammar, style and spell-checking in many languages. Use the free web editor, browser extensions, desktop apps, or self-host the server.

Free alternative to

In collections

Related tools

Vale

Grammar & editing

Command-line prose linter with custom style guides

Stars
★ 6.3k
Licence
MIT
Updated

Alternative to Grammarly, ProWritingAid

Hemingway Editor

Grammar & editing

Readability highlighter for clearer, shorter sentences

Licence
Proprietary
Status
Freemium

Alternative to Grammarly, ProWritingAid

ProWritingAid

Grammar & editing

Deep manuscript editing reports for fiction and non-fiction

Licence
Proprietary
Status
Freemium

Alternative to Grammarly, Hemingway Editor

SmartEdit Writer

Novel & long-form writing

Windows novel organiser with built-in manuscript analysis

Licence
Proprietary
Status
Freemium

Alternative to Scrivener, ProWritingAid

ONLYOFFICE Docs

Grammar & editing

Open-source office editors with strong DOCX compatibility

Stars
★ 7k
Licence
AGPL-3.0
Updated

Alternative to Microsoft Word

LibreOffice Writer

Grammar & editing

Full free office word processor with styles and export

Stars
★ 4.5k
Licence
MPL-2.0
Updated

Alternative to Microsoft Word