Select
Highlight text anywhere — mail, docs, code review, browser. Or skip the selection and just talk.
how it works
Three moves. No app switching.
Press
One global hotkey per prompt. Tap it for text, hold it to speak — or bind a bare Right ⌘.
Placed
The result pastes over your selection, floats in an overlay by your cursor, or lands in the clipboard.
12 workflows
Four inputs × three outputs.
Every prompt is a pipeline: how Boosta listens × where the result goes. Try a combination:
input
output
Text
→
AI
→
Paste
Runs your prompt on the selected text — and pastes the result over it, in place.
in the box: “Fix Grammar”
built like a native tool
Because it is one.
Overlay over everything
The status pill and result panel appear on whichever monitor your cursor is on — and stay visible over full-screen apps. One overlay per display, never in your way.
Your models, per prompt
OpenAI, Anthropic, Google Gemini — or Ollama running fully local. Each prompt picks its own provider and model, from gpt-5.6-sol to claude-fable-5.
Private by design
No account, no telemetry, no relay servers — requests go straight from your machine to your provider. Keys live in ~/.boosta, file mode 0600, kept out of your settings.
Hotkeys without the chords
Any combo works — and so does a bare modifier. Bind just Right ⌘: left and right keys are distinct, taps fire on release, holds record your voice.
Voice with manners
Hold to talk, release to paste. Your music ducks to a level you choose while recording, then comes right back. Taps under half a second are quietly discarded.
Rust-native core
Built on Tauri 2: a Rust engine drives paste and hotkeys through native OS APIs — CoreGraphics events on macOS. Menu-bar quiet, no dock icon, megabytes not hundreds.
starter prompts
Eighteen prompts in the box.
Fix grammar, translate five ways, summarize, explain code, dictate meeting notes — or write your own with {instruction}, per-prompt models and hotkeys.
Fix Grammar
Translate to English
Translate to Spanish
Translate to Ukrainian
Translate to Chinese
Summarize
Explain Simply
Make Professional
Make Casual
Expand Text
Shorten Text
Fix Code
Explain Code
Write Email Reply
Voice: Meeting Notes
Voice: Quick Note
Voice Command
Smart Voice
download
Get Boosta.
Pick your platform below.
macOS
11.0 Big Sur or newerWindows
10 / 11 · x64
Installer coming soon
Linux
glibc · x64
AppImage + .deb coming soon
Boosta needs an API key for OpenAI, Anthropic, or Gemini — or a local Ollama. On macOS it asks for Accessibility (to read your selection and paste) and Microphone (voice) permissions. Updates arrive signed, straight from Settings — one click. Beta builds aren't notarized yet, so macOS will call the download “damaged” — it isn't. Move Boosta to Applications, run xattr -cr /Applications/Boosta.app in Terminal once, then open it normally. Notarized builds are on the way.