Lossless when it can be
Keep quality copies the picture and sound across when the new format can hold them, so MKV → MP4 takes seconds.
Convert video.
Any film, the format you need.
Change a video between MP4, MKV, WebM, MOV, AVI and WMV, in any direction. When only the format changes, the picture and sound are copied across untouched: seconds, not minutes.
- Runs on your PC
- No upload, no account
- Free
MP4, MKV, WebM, MOV, AVI and WMV, in any direction
- OPENS
- .mp4.m4v.mkv.webm.mov.avi.wmv.flv.f4v.mpg +16 more
- MAKES
- clip.mp4 next to the original; never overwritten
- IN THE APP
- Tools › Video › Convert video
How it works
Three steps.
All on your PC.
- 01
Open Tools › Video › Convert video, or drop videos on the window.
- 02
Choose the format, the quality and, if you like, a smaller picture size.
- 03
Find the result next to the original. Your video is never changed.
What you get
Built for the
real document.
Plays everywhere
MP4 and MOV get H.264 and AAC, WebM gets VP9 and Opus: what phones, browsers and TVs play.
Smaller, never bigger
Pick the tallest the picture may be, from 4K down to 360p. Nothing is enlarged.
Offline, engine included
FFmpeg is installed with the app, so videos convert without a connection.
Good to know
Honest limits.
No surprises.
- Formats that cannot hold the original picture are re-encoded, which takes longer on long films.
- AVI and WMV use older codecs, for software that only reads those.
- Converting to the same format saves a copy named clip (converted).mp4.
First time? The install guide shows every screen, including the Windows warning.
Does it upload my video?
No. Videos are converted on your PC by FFmpeg, which is installed with the app. Nothing is uploaded.
Why was it so fast?
When the new format can hold the video’s own picture and sound, Keep quality copies them across instead of encoding them again.
Works well with
Keep going.
Convert video, without the upload.
Podalls Convert v0.2.1 for Windows 11. Free for personal and commercial use.