1
ProWritingAid
prowritingaid.com/grammar-checkerAlso covers text tools · same kind of online tool
ProWritingAid checks grammar and writing style and integrates with Word, Google Docs, and Scrivener.
Alternatives
The Best Outwrite Alternatives in 2026
9 alternatives1 free · 3 open source
Looking for something like Outwrite? Here are 9 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 1 are free or have a free plan and 3 are open source.
Outwrite offers an AI writing assistant that checks grammar and helps revise sentences, with browser and Google Docs integrations listed.
Top picks at a glance
First suggestionProWritingAidProWritingAid checks grammar and writing style and…Free or freemium optionWriting ToolsWritingTools is a system-wide grammar assistant, according…Another optionLanguageToolLanguageTool checks grammar, punctuation, and spelling…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | ProWritingAid | — | Not stated | Web |
| 2 | LanguageTool | — | Not stated | iOS, Web |
| 3 | Grammarly | — | Not stated | Web |
| 4 | Harper | — | Not stated | macOS, Web |
| 5 | Writing Tools | Free | Yes | Linux, macOS, Windows |
| 6 | Grammarly Browser Extension | — | Not stated | Browser extension, Web |
| 7 | Scribens | — | Not stated | Android, Browser extension, iOS |
| 8 | Harper | — | Yes | — |
| 9 | Languagetool | — | Yes | — |
All Outwrite alternatives
2
LanguageTool
languagetool.orgAlso covers text tools · same kind of online tool
LanguageTool checks grammar, punctuation, and spelling across more than 30 languages, with an AI writing assistant described on its page.
3
Grammarly
grammarly.com/grammar-checkAlso covers text tools
Grammarly checks grammar, spelling, and punctuation and offers writing suggestions, according to its page.
4
Harper
writewithharper.comAlso covers text tools · same kind of online tool
Harper checks grammar and spelling locally on a device, with an open-source project page for writers and developers.
5
Also covers text tools · open source
WritingTools is a system-wide grammar assistant, according to its repository description.
6
Grammarly Browser Extension
grammarly.com/browserAlso covers text tools
Grammarly's browser extension checks grammar and clarity as users write across websites.
7
Scribens
scribens.comAlso covers text tools
Scribens checks English grammar and spelling, including punctuation, agreement, conjugation, and word confusion.
8
Also covers text tools · open source
Harper checks grammar and spelling offline and is written in Rust, according to its repository.
9
Also covers text tools · open source
LanguageTool checks grammar and style across more than 25 languages, according to its project description.
No alternatives match this filter.
Alternatives to similar tools
Grammarly Browser Extension12 alternativesWriting Tools24 alternativesLanguageTool9 alternativesProWritingAid8 alternativesGrammarly8 alternativesHarper24 alternatives
What is the best alternative to Outwrite?
Based on features, tags and platforms, the closest alternatives to Outwrite are ProWritingAid, LanguageTool, and Grammarly.
Is there a free alternative to Outwrite?
Yes. Writing Tools is free or offer a free plan.
Are there open-source alternatives to Outwrite?
Yes: Writing Tools, Harper, and Languagetool.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative