Free
WDV Swiss Army Knife
Convert videos, make GIFs, extract audio, shrink files, and more.
A user-friendly toolkit for video conversion, compression, audio tools, image sequences, PDF conversion, and watermarking. It is powered by FFmpeg and ImageMagick and turns complex media tasks into a few clicks.
Features
- Convert MKV, MOV, AVI, FLV, WMV, and WebM to MP4
- Shrink videos with High, Medium, and Low quality presets
- Extract audio as MP3, make animated GIFs, strip audio, or web-optimize
- Burn subtitles into a video from an .srt file
- Normalize audio loudness with loudnorm or dynaudnorm
- Export video frames, or assemble an image sequence into video
- Inspect media files and convert PDF pages to JPG
- Watermark a folder of JPGs without touching the originals
- Batch mode with per-file status and a dark interface
Requirements
- Windows
- Bundled FFmpeg and ImageMagick tools are used when present