Privacy-first · Local · Fast

Voice to Text.
Yours Alone.

Hold a hotkey, speak your mind, release. OiPer transcribes your words in 1.5 seconds — entirely on your machine, without a server in sight.

1.5s
TRANSCRIPTION
100%
On-Device
2.18×
Faster
Zero
Cloud calls
What Makes It Different

Built with Care,
Not Compromise

Hold & Release

A single hotkey gesture — press to record, release to transcribe. The most natural input workflow imaginable.

Stays on Device

Your voice never travels beyond your machine. Whisper processes everything locally, offline, and privately.

Goes Where You Are

Text injects directly into whatever app has focus. Email, document, message — it just arrives.

Harnesses Your GPU

CUDA and Metal acceleration available. Or run CPU-only. OiPer adapts to your hardware.

Optional Refinement

Hook up any LLM — local or remote — for text cleanup. Always your choice, never automatic.

Choose Your Model

Tiny models for speed, large models for accuracy. Download and swap from a single settings pane.

Benchmark — 30s English Audio

Faster Than
Any API.

Native code, zero network latency, GPU acceleration. The combination makes cloud APIs look sluggish.

1.5s
OiPer
2.18×
Speedup
0ms
Network
OiPer Desktop1.5s
Lemonfox API3.27s
Python Faster-Whisper3.55s
OpenAI Whisper 1 API6.46s
Privacy Architecture

Your Data Belongs
To You

Secure by Default

Local Transcription

The Whisper model runs entirely on your hardware. No API, no server, no cloud. Just your CPU or GPU processing your voice.

Secure by Default

On-Device Storage

Logs and audio stay on your machine. You decide what to keep, what to archive, and what to delete.

Optional

Cloud LLM Cleanup

Text refinement via external APIs is entirely optional. Bring your own key. Default is off. Always opt-in.

Speak Freely.
Stay Private.

Free to download. No subscription. No cloud dependency. Your voice, your hardware, your control.

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