Voice-to-Text Application

The art of
listening

OiPer is a privacy-first desktop application that transforms your voice into text with elegance and precision. Hold a hotkey, speak, release — and watch your words appear.

Download nowFree for macOS, Windows & Linux

1.5s

Transcription time

Our Philosophy

Three pillars define everything we create

01

User Experience

Fast, seamless, and intuitive workflow that feels invisible.

02

Performance

Native code implementation for maximum speed and efficiency.

03

Privacy

Runs entirely on your machine. Your data, your control.

Capabilities

Designed with purpose

Instant Activation

Global hotkey works anywhere on your system. Press, speak, release.

Native Performance

Written in native code for unmatched speed and minimal resources.

Privacy First

Everything runs locally. Your voice never leaves your device.

Model Flexibility

Support for various sizes and types. Choose what fits your needs.

Smart Cleanup

Optional text optimization with your own API key and rules.

Universal

Available for macOS, Windows, and Linux with native feel.

Data Sovereignty

Your voice belongs to you

Privacy isn't a feature we bolt on — it's woven into the fabric of OiPer. By default, everything happens on your machine. Your recordings, your transcripts, your complete control.

Local Processing

Transcription runs entirely on your device using local models.

On-Device Storage

Audio files and logs remain on your machine, nowhere else.

Optional Cloud

Online features only with your explicit API key.

Zero Tracking

No analytics, no telemetry, no data collection.

Benchmarks

Numbers that speak

30 seconds of English audio transcription. Lower is better.

Solution
Time
Relative
OiPer DesktopFastest
1.5s
Baseline
Lemonfox API
3.27s
2.2× slower
Python Faster-Whisper
3.55s
2.4× slower
OpenAI Whisper 1 API
6.46s
4.3× slower

Configuration

Crafted for control

Speech Models

  • Multiple sizes
  • Easy download
  • Custom support

Backend

  • Auto detection
  • CPU mode
  • GPU acceleration

Providers

  • Custom URLs
  • API keys
  • Model selection

Advanced

  • LLM options
  • Gemini Flash
  • Specialized models

Get Started

Begin your journey

OiPer is free and open source. Download it today and experience voice transcription that respects your privacy and your time.

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
v0 1v0 2v0 3v0 4v0 5