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Converter

Convert any media format in a single click

  • Studio lossless sound: WAV 24-bit and MP3 320 kbps without compression artifacts
  • Convert voice notes from Telegram (.ogg, .oga), WhatsApp (.opus) and Apple (.caf) to WAV
  • Video to video & audio: MP4, MOV, AVI, MKV, WEBM with zero sync drift
  • Completely free: no licenses, no subscriptions, runs 100% locally

Free · no limits

Standalone app for macOS. No sign-up, no keys.

K1RO Converter macOS app interface

four steps

From file to result

01

Drop a file

Any audio, video or messenger voice note straight into the app window.

02

Auto-detection

Converter recognizes the media type and shows available target formats.

03

Select format

Studio WAV 24-bit, MP3 320k, FLAC, or video formats in one click.

04

Take the file

Your converted file is saved next to the original in fractions of a second.

what's inside

Features

Voice notes from any messenger

Drop a voice note straight from Telegram or WhatsApp. The app instantly turns it into clean WAV for your DAW or MP3 for listening.

  • .ogg, .oga (Telegram voice)
  • .opus (WhatsApp & Android)
  • .caf, .m4a (Apple Voice Memos)
  • .amr, .3gp

Studio-grade audio quality

Zero loss of dynamics or high-end clarity. The converter preserves original sample rates up to 96 kHz and 24-bit depth.

  • WAV 24-bit / 48 kHz and 96 kHz
  • MP3 320 kbps (CBR)
  • Lossless FLAC and AIFF
  • AAC, OGG, WMA, M4A

Lossless video containers

Convert between popular video formats or extract the pure soundtrack from any video clip instantly.

  • MP4, MOV, AVI, MKV, WEBM
  • Direct audio extraction from video
  • Zero audio/video drift

100% offline & private

Not a single byte of your recordings goes online. All processing runs directly on your Mac with Apple Silicon acceleration.

  • No internet connection required
  • Universal build: Apple Silicon and Intel

system requirements

What your computer needs

ItemMinimumRecommended
OSmacOS 11.0 Big Sur or newermacOS 14 Sonoma / Sequoia
CPUApple Silicon (M1/M2/M3/M4) or Intel x86_64Any Apple Silicon Mac
Memory4 GB8 GB
Disk150 MB200 MB

terms

FREE

The app is completely free: no keys, no registration, no ads, and no time limits.

PRIVACY

All files are processed strictly locally on your Mac. We never collect or transmit your files.

COMPATIBILITY

Universal installer (.dmg) optimized for both Apple Silicon (M1/M2/M3/M4) and Intel processors.

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