Open source & free forever

Dictation that stays
on your Mac.

Press a shortcut, speak, and your words appear anywhere. Powered by Whisper. Nothing leaves your device.

Download for macOS Source

macOS 14+ · Apple Silicon · ~3 MB

OpenFlow HUD floating on macOS desktop
100% local No internet needed Apple Silicon fast MIT licensed
Features
Everything you need.
Nothing extra.
A dictation tool that does one thing well — converting your speech to text, privately.

Runs on-device

Whisper.cpp processes all audio locally. Zero network calls, zero cloud, zero trust issues.

One shortcut

Press the shortcut from any app. Speak. Release. Text appears at your cursor instantly.

Apple Silicon native

Built for M-series. Fast inference, low power draw, minimal memory footprint.

No accounts

No sign-up, no API keys, no telemetry, no analytics. Open it and use it.

Multiple models

Tiny for speed, Base for balance, Small for accuracy. Pick what works for you.

Text replacements

Custom rules to auto-correct or reformat transcriptions to match your style.

Compare
Why not Wispr Flow?
Same concept, different philosophy. OpenFlow is free, open-source, and never touches a server.
OpenFlow Wispr Flow
Price Free $8/mo
Open source
Privacy 100% local Cloud
Works offline
Account required No Yes
Usage limits None Plan-based
How it works
Three steps. That's it.
01

Press the shortcut

Hit ⌃ ⌥ Space from any app. The HUD appears — OpenFlow is listening.

02

Speak naturally

Talk as you normally would. Whisper transcribes your speech entirely on your device.

03

Text appears

Stop recording. Your words are inserted at the cursor — Slack, email, docs, anywhere.

Start dictating for free.

No account. No cloud. No limits. Download, install, speak.

Download for macOS Star on GitHub