A single hotkey initiates recording. Release to transcribe. The result appears instantly in your active application — no interruptions, no friction.
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Performance
Written in native code with GPU acceleration. 1.5 seconds for 30 seconds of audio. Engineered for speed beyond what cloud services can offer.
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Privacy
Every transcription runs locally on your machine. Your voice, your data, your control. Cloud services are optional and always require your explicit consent.
Performance Benchmark
Superior by Every Measure
30 seconds of English audio — timed to transcription complete
FastestOiPer Desktop
1.5s
Lemonfox API
3.27s
Python Faster-Whisper
3.55s
OpenAI Whisper API
6.46s
Privacy Architecture
Your Data, Your Domain
Local Transcription
Speech-to-text processing happens entirely on your machine using local AI models, with no data leaving your device.
On-Device Storage
Activity logs and audio recordings remain exclusively on your device. Nothing is transmitted without your knowledge.
Optional Services
Online text optimization is entirely optional, requires your own API key, and can be disabled at any moment.
Zero Analytics
OiPer collects no usage data, no crash reports, no behavioral analytics. Your workflow is entirely your own.
Command Your Voice. Master Your Words.
Begin your journey into effortless, private voice transcription.