A file will not open
Confirm the file is readable, local, non-empty and not protected by DRM. Try ffprobe-compatible media and avoid incomplete browser downloads.
Free Video Converter support
Start with these practical checks before changing codecs or reinstalling the application.
Conversion failed
Open the job log, verify free disk space and choose a simple MP4 H.264 preset. Keep the source and output on local fixed drives while diagnosing.
The output is too large
Use target-size mode or lower resolution/frame rate. Constant-quality values trade size for visible quality and do not guarantee an exact size.
A subtitle or audio track is missing
Open Tracks before conversion, include the stream and verify the chosen container supports that stream format.
Responsible media use
Use online import and disc features only for media you own or are permitted to process. The application does not bypass DRM and does not read browser cookies or saved logins.