Koe
Open-source macOS voice input with no main window; config, prompts and dictionary are plain files under ~/.koe.
Koe (声) is an MIT-licensed background voice input tool for Apple Silicon Macs, written in Objective-C with a Rust core and shipping at roughly 19 MB. Press the trigger key — Fn by default, in hold, tap-to-toggle or double-tap mode — speak, and a floating pill shows interim recognition before the corrected text is pasted into the focused app. Recognition runs on Doubao, Qwen, GLM or MiMo in the cloud, or on-device with Apple Speech, MLX Qwen3-ASR models or sherpa-onnx; correction runs on OpenAI, Anthropic, a compatible gateway or a local MLX model. Configuration, the correction prompts and the dictionary are plain files in ~/.koe that take effect on the next hotkey press, and up to nine prompt templates can rewrite a result after the fact. Sessions are logged to a local SQLite file.
Pros
- Free and MIT-licensed; about 19 MB on disk with roughly 13 MB idle memory and no Electron runtime
- Config, prompts and the dictionary are plain text under ~/.koe and apply without a restart
- Cloud and on-device providers are chosen separately for recognition and for correction
Cons
- Apple Silicon Macs on macOS 14+ only; there is no Intel, Windows or Linux build
- Cloud recognition and correction need your own provider keys and are billed by the provider
- The local SQLite log stores sessions, but there is no built-in history browser beyond menu bar statistics
- Platforms
- macOS
- Speech processing
- Hybrid
- Works offline
- Yes
- Languages
- —
Pricing
- Pricing model
- Open source
- Free tier
- Yes
Features
- Yes Works in any app
- Yes Real-time transcription
- Yes Auto punctuation
- Yes AI cleanup
- Yes Custom vocabulary
- No Voice commands
- Yes Push to talk
- No Auto language detection
- Yes Translation
- No File transcription
- No Meeting notes
- No Multilingual interface
- Yes History
Compare Koe with
- Apple Dictation
- Aqua Voice
- Arion
- attunz
- Done Typing
- Dragon Professional
- Dropline
- Galt
- Google Voice Typing
- Handy
- LazyTyper
- MacWhisper
- OpenLess
- OpenTypeless
- SayIt
- SaySo
- Speakly
- SpeechBee
- Speechnotes
- Superwhisper
- Typeflux
- Typeless
- Voice In
- VoiceInk
- Voilà Pro
- Voxt
- Whispek
- Willow Voice
- Windows Voice Typing
- Wispr Flow
- Yap
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- 闪电说
Last verified 2026-09-22