Voice to Text,

Privately.

Hold a hotkey. Speak. Release. Your words appear instantly — transcribed on your machine, never sent to the cloud. That's OiPer.

Core Features

Engineered for simplicity

Hold to Record

Press your global hotkey to start recording. Release to transcribe. Text appears instantly in your active app.

Local by Default

Transcription runs entirely on your machine. Audio, logs, and data never leave your device unless you choose otherwise.

Blazing Fast

Written in native code with GPU acceleration. Transcribes 30 seconds of audio in just 1.5 seconds.

Your Rules

Choose local or online optimization. Pick your backend. Configure your own API keys and LLM providers.

Performance

Unreasonably fast

30-second English audio benchmark

OiPer Desktop
1.5s
Lemonfox API
3.27s
Python Faster-Whisper
3.55s
OpenAI Whisper 1 API
6.46s

Privacy & Security

Your data stays yours

Local Processing

  • Transcription runs locally on your machine
  • Activity logs and audio remain on-device
  • Full control over your data at all times

Online Services

Optional

  • Online optimization is completely opt-in
  • Requires your own API key
  • Enable or disable at any time

Configuration

Tune every detail

01

Speech Models

Select and download models. Choose sizes that match your hardware.

02

Backend Control

Auto-detect, CPU-only, or GPU acceleration. Your choice.

03

LLM Transcription

Route through Gemini Flash, specialized models, or your own provider for extreme accuracy.

04

Online Providers

Custom base URLs, API key management, model configuration.

05

Text Optimization

Clean up transcriptions locally or with an online service.

06

Advanced Tuning

Fine-tune for technical terminology and specialized content.

Ready to speak freely?

Download OiPer Desktop and experience voice-to-text that respects your privacy, your time, and your workflow.

codex 1codex 2codex 3codex 4codex 5
codex2 1codex2 2codex2 3codex2 4codex2 5
gemini 1gemini 2gemini 3gemini 4gemini 5
glm 1glm 2glm 3glm 4glm 5
sonnet 1sonnet 2sonnet 3sonnet 4sonnet 5
kimi 1kimi 2kimi 3kimi 4kimi 5
codex53 1codex53 2codex53 3codex53 4codex53 5
opus 1opus 2opus 3opus 4opus 5
qwen 1qwen 2qwen 3qwen 4qwen 5
sonnet2 1sonnet2 2sonnet2 3sonnet2 4sonnet2 5
lovable 1lovable 2lovable 3lovable 4lovable 5
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