Languages Polisher

Fix grammar, punctuation, and phrasing in 25+ languages with AI.

What it does

Polishes writing in English, Spanish, French, German, Arabic, Japanese, Korean, Chinese, Hindi, and 15 more languages. Catches typos, fixes verb agreement, smooths out clunky sentences, suggests better word choices.

Shows you a side-by-side diff so you see exactly what changed — accept the whole edit or pick and choose.

How it works under the hood

Your text and the chosen language go through our Cloudflare Worker to a Google Gemini model. We don't keep logs of what you submit.

Recently polished snippets are saved in your browser's local storage so you can come back to them, but never sent to us as history.

How to use it

Pick the language — Select the language you wrote in. The AI uses native conventions — Spanish goes Latin American neutral, Japanese stays polite-casual, Arabic uses MSA.
Paste your text — Drop in anything — an email draft, a paragraph from your essay, a Slack message, a sentence you're stuck on.
Review changes — The diff highlights every edit. Click any change to accept or reject individually, or accept all at once.

When to use it

Writing in a second language

Drafted something in a language you don't speak natively? Polish catches the natural-sounding things native speakers do but textbooks don't teach.

Quick proofread

Important email, blog post, or report? Run it through to catch typos and grammar slips before sending.

Tightening prose

Wordy first draft? The polish often shortens sentences and removes filler — without changing your meaning.

FAQ

Will my text be used to train AI models?: No. We pass your text to the AI provider for the request only — Google Gemini's privacy terms apply. We don't log or retain it ourselves.
Does it change my voice?: It tries not to. The prompt asks for grammar and clarity fixes, not style rewrites. If you want "more formal" or "more casual", the next version will let you specify.
How long can the input be?: Up to a few thousand words per request. For longer text, paste it in chunks — the AI doesn't need the whole essay to fix grammar.