Squiggle - Privacy focused grammar corrector

Privacy-focused grammar corrector for every language. Free, made by a single developer.

Made and maintained by a solo developer: a privacy-focused writing corrector that works in most languages — free. Catches grammar and spelling mistakes with squiggly underlines; fix one, fix all, or preview before anything changes Improve style, rewrite with your own prompt, translate, generate — in any text field, on any site Auto-detects whatever language you write in. Sign up with your email — no card — for a generous daily quota. Cheap premium tiers (bigger quotas) are planned. No ads, no selling data Or use your own OpenAI-compatible key: nothing passes through us Your text is processed only to return your result and is never logged; AI calls go only to zero-data-retention providers. We store an email, a password hash, and usage counters — nothing else.