About LinguFlow
LinguFlow is a free AI sentence polisher that turns awkward sentences into natural writing. Here is how it works.
What LinguFlow does
LinguFlow is a free web tool that turns awkward sentences into natural writing. Paste your text and you get two versions: a polished rewrite that keeps your meaning and tone, and a copy that fixes only grammar and spelling errors.
How it works
Your text is sent to Anthropic's Claude AI for processing and only the result is shown on screen. Questions or commands inside your text are never answered or followed; the text is treated as plain characters to proofread. LinguFlow does not store your text on its servers, and any retention during AI processing follows Anthropic's policies.
Emails, cover letters and work messages
Emails, cover letters and work messages call for different writing, so each has its own page. Choose who you are writing to or the situation and the result is tuned to it. Details that are missing are pointed out in a separate note instead of being invented in the text.
Limits and languages
You can use up to 1,000 characters at a time and 20 checks a day for free, with no sign-up. Korean, English, Spanish, Japanese and Chinese are supported, and the result comes back in the language you wrote in.
Good to know
AI output can contain mistakes. Read important writing once more before you send it.