MKV files don't play everywhere — popular for high-quality video but unsupported by many players and editors. Converting MKV to MP4 (H.264) gives you a video that plays on every device, browser, editor, and platform. Picmal re-encodes locally on your Mac with quality control (CRF) and batch processing — no upload limits, no watermark, no subscription.
Drag and drop one file or a whole folder.
Pick the output format and quality.
Click Convert. Everything runs on your Mac.
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Open Picmal, drag your MKV files into the window, choose MP4 as the output and set your codec and quality, and click Convert. Everything is processed locally on your Mac.
Yes. Drag in as many MKV files (or a whole folder) as you like and Picmal converts them all to MP4 in one pass, each with its own progress.
Only as much as you choose. Picmal exposes a CRF quality slider — at CRF 18–20 the result is visually lossless. You can also trade quality for a smaller file when you need it.
Yes. Picmal defaults to H.264 inside an MP4 container — the most universally compatible combination, playable on virtually every device, browser, and editor.
Picmal is a one-time purchase of $15.99 — no subscription, no per-file limits, no watermark. Download to explore the interface; 14-day money-back guarantee.
Want step-by-step instructions with free methods (HandBrake, VLC, FFmpeg) alongside Picmal?
Read: How to Convert MKV to MP4 on Mac (Keep Subtitles and Audio Tracks) →