Overview
The ultimate media toolkit for macOS and iOS. Compress, convert, and transcribe images, video, and audio locally with pro-grade speed and total privacy.
Key Features at a Glance
- Multi-Format Support: Works with JPEG, PNG, HEIC, WebP, AVIF, GIF, MP4, MOV, WebM, MP3, M4A, and more.
- Hardware Acceleration: Optimized for Apple Silicon using Metal and VideoToolbox.
- Batch Processing: Handle up to 20 files at once with real-time progress.
- AI Transcription: High-accuracy speech-to-text in 10+ languages.
- Natural TTS: Generate high-quality speech with customizable pitch and rate.
- Animation Support: Compress and convert animated WebP, AVIF, and GIF without quality loss.
Beyond Simple Compression
While Medrea excels at making files smaller, it is a complete suite of media utilities optimized for the Apple ecosystem:
- Video Mastery: Compress 4K videos using hardware-accelerated VideoToolbox, convert formats (MP4, MOV, WebM), or turn videos into high-quality AVIF/WebP animations.
- Image Precision: Shrink JPEG, PNG, and HEIC files without losing detail. Medrea uses lossless optimization for PNG, ensuring every pixel remains identical to the original while reducing file size. Medrea uniquely supports animated WebP compression, preserving every frame.
- Audio Intelligence: Batch convert audio tracks or extract them from videos.
- AI-Powered Tools: Transcribe audio to text in 10+ languages or generate natural-sounding speech from any text input.
Performance by Engineering
Medrea isn't just a wrapper. It's built for speed:
- Metal & VideoToolbox: Leverages Apple Silicon's dedicated media engines.
- Batch Processing: Handle dozens of files simultaneously with real-time ETA tracking.
- Intelligent Decision: Medrea automatically detects if a compressed file would be larger than the original and preserves the best version for you.
Exceptional Results
Image Optimization
Shrink your images for faster web loading or easier sharing without visible quality loss.
| Format | Before (Original) | After (Medrea) | Savings |
|---|---|---|---|
| JPEG |  |
 |
~70% smaller (41kB → 12kB) |
| PNG (Lossless) |  |
 |
~2.2% smaller (29kB → 28.28kB) |
Video Optimization
Perfect for Discord, Slack, or email attachments that have strict file size limits.
| Source Type | Original Size | Compressed Size | Reduction |
|---|---|---|---|
| 4K MOV Video | 1.38 GB | 37.9 MB | ~97% smaller |
| iPhone Video | Large 10bit HDR | Optimized HEVC | Massively reduced |