Open source • Local-first • Privacy-first

Don't type,
just speak.

The open-source voice-to-text app that turns your speech into clear, polished writing — in every app, completely offline.

macOS
Windows
Linux
OpenFlow app interface showing voice dictation in action
Keyboard

umm, hope your week has started well… I was talking to Cheyene earlier but reception was really bad and I think their going to handle the first part of the project, but I'm not totally sure. Also, I told the team the the new timeline should be ready by Friday, although it's probably going to slip.

45 wpm
OpenFlow

Hope your week is off to a good start. I was talking to Cheyene earlier, but the reception was really bad. I think they're going to handle the first part of the project, but I'm not totally sure. I also told the team the new timeline should be ready by Friday — although it might slip.

180 wpm
4×
Faster than typing
100%
Runs offline, locally
100+
Languages supported
AI Auto-Edits

Speak naturally.
Land perfectly.

Rambled thoughts become clear, perfectly formatted text — without filler words, typos, or awkward pauses. OpenFlow transcribes and edits your voice locally, instantly.

Try it free
Raw Voice

umm so basically I think that, like, we should probably uh circle back on the project timeline

OpenFlow Output

I think we should circle back on the project timeline.

Personal Dictionary

Your words,
your way.

OpenFlow learns your unique vocabulary — names, jargon, acronyms — and spells them right every time. No more correcting the same word twice.

Add your words
OpenFlow Product
Kubernetes Tech
Nguyen Name
SaaS Acronym
PRD Acronym
Snippets

Voice shortcuts for
everything.

Create voice shortcuts for things you say over and over. Speak a cue like "calendar" and get your full scheduling link — no typing needed.

Create snippets
"calendar"
You can book a 30-minute call with me here: calendly.com/openflow
"hours"
Our support hours are Monday — Friday, 9 AM — 6 PM EST.
"intro"
Hi! I'm the founder of OpenFlow — the open-source, privacy-first voice dictation tool.
100+ Languages

Speak in any
language.

OpenFlow automatically detects and transcribes in your language. Switch between languages mid-sentence — just like you do in real life. All processing happens locally on your device.

Try your language
🇺🇸English
🇪🇸Español
🇫🇷Français
🇩🇪Deutsch
🇯🇵日本語
🇰🇷한국어
🇨🇳中文
🇵🇹Português
🇮🇳हिन्दी
🇸🇦العربية
🇷🇺Русский
🇹🇷Türkçe
Privacy First

Your voice never
leaves your machine.

OpenFlow runs entirely offline. No cloud, no servers, no telemetry. Your voice data is processed locally and never sent anywhere.

Air-gapped by default

All speech processing runs on your device using local Whisper models. No internet required. No data uploaded. Ever.

Local Whisper models

Choose from Tiny to Large models. Everything runs on your hardware, nothing in the cloud.

No telemetry or tracking

Zero analytics, zero phoning home. Your usage data stays on your device, period.

Local AI cleanup

Optional local LLM for text cleanup. Run your own model server — or use rule-based cleanup — no data leaves your machine.

Full data ownership

Export, delete, or keep everything. Your dictionaries, snippets, and history are stored locally in SQLite.

Testimonials

Loved by people who speak

"Finally, a voice tool that respects my privacy. Everything stays on my machine — this is how it should be."

Alex R. • Software Engineer

"I dictate 4x faster than I type. OpenFlow cleaned up my rambling into perfectly structured emails."

Priya M. • Product Manager

"The local Whisper model is a game-changer. No internet needed, no latency — just speak and it works."

David K. • Indie Developer

"I have a motor disability and typing is painful. OpenFlow gives me back independence, and it's fully open source!"

Jordan L. • Writer & Accessibility Advocate

"The snippet feature is brilliant. I say 'standup' and it fills out my entire daily check-in template."

Nina S. • Engineering Lead

"Being able to inspect the code myself gives me confidence. No hidden telemetry, no secrets. Just great software."

Marcus T. • Security Researcher

"Finally, a voice tool that respects my privacy. Everything stays on my machine — this is how it should be."

Alex R. • Software Engineer

"I dictate 4x faster than I type. OpenFlow cleaned up my rambling into perfectly structured emails."

Priya M. • Product Manager

"The local Whisper model is a game-changer. No internet needed, no latency — just speak and it works."

David K. • Indie Developer

"I have a motor disability and typing is painful. OpenFlow gives me back independence, and it's fully open source!"

Jordan L. • Writer & Accessibility Advocate

"The snippet feature is brilliant. I say 'standup' and it fills out my entire daily check-in template."

Nina S. • Engineering Lead

"Being able to inspect the code myself gives me confidence. No hidden telemetry, no secrets. Just great software."

Marcus T. • Security Researcher

Built in the open.
By the community.

OpenFlow is 100% open source. Audit the code, contribute features, or fork it and make it yours. No vendor lock-in, no paywalls, no surprises.

Open Source
Local Whisper
Zero Telemetry
Cross-Platform

Start flowing.

Effortless voice dictation, open-source & offline.
4× faster than typing. Your voice, your data.

Available on macOS, Windows, and Linux.