Features

Interactive workflow

Medix walks you through conversion via a series of styled prompts:

1. Discovery — scans the path and shows a clean table of files with resolution, duration, and size.
2. Source filter — if multiple input formats exist, pick which ones to convert (multi-select checkbox).
3. Output format — choose from MP4, MKV, WebM, MOV, AVI, or TS.
4. Advanced settings — optionally tune video codec, audio codec, resolution, frame rate, CRF, preset, and audio bitrate.
5. Confirmation — review the conversion plan before anything runs.
6. Progress — per-file and overall progress bars with live ETA.
7. Summary — success/failure counts and error details.

Local GUI

Prefer point-and-click? Run medix-gui to launch a local Material Design web app on 127.0.0.1. Pick a file or folder, scan, tweak settings, and watch live per-file progress, plus a browsable conversion history filtered by time window. Files stay on your machine, with no upload and no login. See the Local GUI guide.

Batch conversion

• Convert a single file, a directory, or a directory tree (-r).
• Output directory defaults to <input>/converted/ or can be set with -o.
• Filename collisions are handled automatically with an incrementing suffix.

Dry-run preview

Preview everything without writing files using --dry-run (or -n). Medix shows:

• The discovered files and their output paths
• A representative ffmpeg command that would be executed
• The complete conversion plan

FFmpeg auto-install

If FFmpeg or ffprobe are missing, Medix detects your OS and package manager and offers to install them for you. Supported managers:

• macOS — Homebrew, MacPorts
• Linux — APT, DNF, YUM, Pacman
• Windows — winget, Chocolatey, Scoop

Format & codec support

Category	Options
Output formats	MP4, MKV, WebM, MOV, AVI, TS
Video codecs	H.264, H.265, VP9, AV1, MPEG-4, copy
Audio codecs	AAC, MP3, Opus, AC3, FLAC, copy
Resolutions	Original, 4K, 2K, 1080p, 720p, 480p, 360p
Frame rates	Original, 24, 25, 30, 48, 60 fps
Presets	ultrafast → veryslow
CRF range	0–51 (lower = higher quality)
Audio bitrate	Auto, 96k, 128k, 192k, 256k, 320k

See Supported Formats for the full input list and default codec mappings.

Cross-platform

Tested on CI across Python 3.9–3.13 on Ubuntu, macOS, and Windows.