Select text, press a hotkey, pick a preset. BrushUp rewrites your English to sound natural, correct, or professional — right inside Outlook, Slack, Word, or whatever you're typing in.
No copy-paste. No tab-switching. The popup floats above your work and dies the moment you're done.
Highlight a sentence, paragraph, or whole draft in any application — email, chat, document, or browser.
Hit your shortcut (default: Ctrl+Alt+R). A floating popup snaps open with your captured text.
Choose Fix Grammar, Make Formal, Translate to EN — anything. Hit Enter to rewrite, Enter again to replace.
Designed for non-native English speakers who type all day. Mouse-free, account-free, and entirely under your control.
UI Automation captures text from any app — Outlook, Word, Slack, Notion, browsers, even legacy apps. Clipboard fallback included.
Watch the improved text arrive token by token. Cancel anytime if the rewrite goes sideways.
See exactly what changed. Deletions struck through in red, additions highlighted in green. No mystery rewrites.
Replaced the wrong thing? Hit Ctrl+Z and the original text snaps back into the source app — instantly.
Your API key is stored in Windows Credential Manager — never in a plain-text config file, never sent anywhere except your chosen provider.
OpenRouter, Ollama Cloud, or any OpenAI-compatible endpoint. Swap models anytime — Claude, GPT, Gemini, open-source. Your call.
Each preset has a carefully tuned system prompt. Edit them, add your own, or delete what you don't use.
Free, open source, and runs quietly in your system tray. No account, no telemetry, no nonsense.