1
Scribens
scribens.comAlso covers browser extension, text tools, and web browser
Scribens checks English grammar and spelling, including punctuation, agreement, conjugation, and word confusion.
Alternatives
The Best Grammarly Browser Extension Alternatives in 2026
12 alternatives2 free · 2 open source
Looking for something like Grammarly Browser Extension? Here are 12 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 2 are free or have a free plan and 2 are open source.
About Grammarly Browser Extensiongrammarly.com/browser
VisitGrammarly's browser extension checks grammar and clarity as users write across websites.
Top picks at a glance
First suggestionScribensScribens checks English grammar and spelling, including…Free or freemium optionTableconvertTableConvert converts tables among formats such as Excel…Open source optionHarperHarper checks grammar and spelling offline and is written…Another optionHarperHarper checks grammar and spelling locally on a device…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Scribens | — | Not stated | Android, Browser extension, iOS |
| 2 | Harper | — | Not stated | macOS, Web |
| 3 | Fonts Ninja | — | Not stated | Browser extension, iOS, Web |
| 4 | SearchDecode | — | Not stated | Browser extension |
| 5 | Tableconvert | Free | Not stated | Browser extension, Web |
| 6 | Convert Case | — | Not stated | Android, iOS, Web |
| 7 | Grammarly | — | Not stated | Web |
| 8 | Outwrite | Freemium | Not stated | Web |
| 9 | LanguageTool | — | Not stated | iOS, Web |
| 10 | ProWritingAid | — | Not stated | Web |
All Grammarly Browser Extension alternatives
2
Harper
writewithharper.comAlso covers browser extension and text tools
Harper checks grammar and spelling locally on a device, with an open-source project page for writers and developers.
3
Fonts Ninja
fonts.ninja/toolsAlso covers browser extension and text tools
Fonts Ninja identifies fonts on web pages through a browser extension, with a hover interaction described on its site.
4
SearchDecode
github.com/bewf/SearchDecodeAlso covers browser extension and text tools
SearchDecode decodes Base64 strings pasted into a browser search bar, according to its extension description.
5
Also covers browser extension, text tools, and web browser · free
TableConvert converts tables among formats such as Excel, CSV, JSON, Markdown, and LaTeX, and can generate data.
6
Convert Case
convertcase.netAlso covers browser extension and text tools
Convert Case changes text between uppercase, lowercase, sentence case, and other letter-case formats.
7
Grammarly
grammarly.com/grammar-checkAlso covers text tools
Grammarly checks grammar, spelling, and punctuation and offers writing suggestions, according to its page.
8
Also covers text tools · free plan
Outwrite offers an AI writing assistant that checks grammar and helps revise sentences, with browser and Google Docs integrations listed.
9
LanguageTool
languagetool.orgAlso covers text tools
LanguageTool checks grammar, punctuation, and spelling across more than 30 languages, with an AI writing assistant described on its page.
10
ProWritingAid
prowritingaid.com/grammar-checkerAlso covers text tools
ProWritingAid checks grammar and writing style and integrates with Word, Google Docs, and Scrivener.
11
Also covers text tools · open source
Harper checks grammar and spelling offline and is written in Rust, according to its repository.
12
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
Outwrite9 alternativesLanguageTool9 alternativesProWritingAid8 alternativesSearchDecode11 alternativesGrammarly8 alternativesHarper24 alternatives
What is the best alternative to Grammarly Browser Extension?
Based on features, tags and platforms, the closest alternatives to Grammarly Browser Extension are Scribens, Harper, and Fonts Ninja.
Is there a free alternative to Grammarly Browser Extension?
Yes. Tableconvert and Outwrite are free or offer a free plan.
Are there open-source alternatives to Grammarly Browser Extension?
Yes: 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