Typefix

Private writing assistant: on-device spelling & grammar, AI style on demand.

Typefix is a private writing assistant that respects you: no scores, no nagging, no clutter. — On-device by default. The grammar engine (Harper, WebAssembly) runs entirely in your browser: calm, thin underlines appear as you type, and clicking one opens a small fix card. Your text never leaves your device for everyday checking, and it works offline. — Optional AI, only once you connect. Sign in with your Google account to add an AI tier: sharper as-you-type grammar for non-native English, plus on-demand tone shifts and full rewrites. Only the text you're working on is sent — to our own server — and it is never stored there. — Tuned for real work. Ships an industry dictionary (ecommerce, software, business terms), learns the fixes you prefer, matches your own writing voice in rewrites, and lets you turn checking or AI off per site for sensitive work. Features • Calm, thin underlines as you type, with a one-click fix card — no scores, no clutter • On-device spelling & grammar (Harper, WebAssembly) — private and works offline • Optional AI once connected: as-you-type grammar for non-native English, plus on-demand tone & rewrites • AI modes: Grammar, Concise, Formal, Friendly, Rephrase, Draft review • Whole-draft rewrite with a tone read + review notes (Alt+Shift+Y) • Improve selection anywhere (Alt+Shift+U); apply the top fix at the caret (Alt+Shift+.) • Opt-in clarity + inclusive-language lens (wordiness, jargon, neutral-term nudges) — off by default • Preferred-fix memory, American/British dialect, personal + industry dictionary • Per-site disable for both checking and AI