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Justdone AI Writing Copyw Chrome Extension

Checks grammar, paraphrases and adjusts tone in real time across Gmail, Docs and more.

Checked 3 Oct 2026 Reviewed by Alex Listed since October 2024

Screenshot of Justdone AI Writing Copyw Chrome Extension

At a glance

Starts at Free Listed as free on the Chrome Web Store.
Free tier Yes
Platforms Chrome
Best for Students and professionals writing across many web tools
Not for Anyone writing exclusively in languages outside its 30-plus list

3.7 out of 5

Scored by Alex after real use

Our verdict

Justdone checks grammar and spelling across more than 30 languages, and goes beyond basic proofreading with paraphrasing, summarization and tone adjustment, all applied in real time with color-coded suggestions you can accept in one click. It works directly inside Google Docs, Gmail, Outlook, LinkedIn and other sites without any copy-pasting. Coverage depends on which of the 30-plus supported languages you're writing in, so anything outside that list isn't handled the same way.

✓What it does well

Multilingual grammar checkGrammar and spelling errors are caught across more than 30 languages.
Works without copy-pasteSuggestions appear directly inside Gmail, Docs, LinkedIn and other sites.
Tone and clarity adjustmentTone can be adjusted instantly to fit a casual or professional context.

✕Where it falls short

Limited to supported languagesCoverage is limited to the 30-plus languages it explicitly supports.
One more browser extension to runIt requires installing and running yet another writing extension alongside your browser.
Depends on real-time analysisSuggestions depend on real-time text analysis, which can occasionally misread intent.

Key features

Multilingual grammar checkGrammar and spelling get checked live across more than 30 languages.
Advanced paraphrasingSentences rephrase while keeping the original meaning intact.
Fast summarizationLong text condenses into key takeaways in seconds.
Tone controlWriting tone adjusts instantly to match casual or professional contexts.

Questions about Justdone AI Writing Copyw Chrome Extension

What does Justdone AI Writing Copyw Chrome Extension do?

Justdone AI Writing Copyw Chrome Extension checks grammar and spelling and goes beyond proofreading with paraphrasing, summarization and tone adjustment. Suggestions appear in real time with color coding and can be accepted in one click, and long text can be condensed into key takeaways in seconds.

Does Justdone AI Writing Copyw Chrome Extension work in Gmail?

Yes. Justdone AI Writing Copyw Chrome Extension works directly inside Google Docs, Gmail, Outlook, LinkedIn and other sites, so there is no copy-pasting between tools. Toolio names students and professionals writing across many web tools as its best fit.

Is Justdone AI Writing Copyw Chrome Extension free?

Justdone AI Writing Copyw Chrome Extension is listed as free on the Chrome Web Store, and Toolio found no paid plan for it. It runs in Chrome only, as one more writing extension installed alongside the browser, which the reviewer counts among its drawbacks.

What languages does Justdone AI Writing Copyw Chrome Extension support?

Justdone AI Writing Copyw Chrome Extension checks grammar and spelling across more than 30 languages. Coverage is limited to that list, so Toolio says it is not for anyone writing exclusively in languages outside its 30-plus supported set.

How does Toolio rate Justdone AI Writing Copyw Chrome Extension?

Alex scored Justdone AI Writing Copyw Chrome Extension 3.7 out of 5 after real use, on 3 Oct 2026. The reviewer credits its multilingual grammar checks, in-page suggestions and tone control, but notes its suggestions depend on real-time text analysis, which can occasionally misread intent.

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