Support

Help & Support

Guidance for getting reliable results with local uploads, direct video URLs, and browser-supported codecs.

Updated April 18, 2026Supported FormatsPrivacy Policy

Best-practice reminder

For the most reliable workflow, upload a local MP4 or WebM file whenever possible. Direct URLs only work when the host allows browser playback.

Local uploads

Local uploads are the most reliable option because they avoid cross-origin restrictions, expired signed URLs, and hosts that block browser playback.

If a file fails to load, try re-encoding it to MP4 (H.264) or WebM before extracting frames again.

Direct video URLs

URL mode expects a direct link to the video file itself. Watch pages, embed pages, share pages, and social media links will not work.

  • Works best with direct .mp4 or .webm file URLs.
  • Remote playback can still fail if the host blocks browser access.
  • A valid container extension does not guarantee codec support.

Troubleshooting

  • If extraction returns no frames, shorten the selected time range or increase the frame count.
  • If the remote file loads but cannot be decoded, download it locally and try the upload workflow instead.
  • If AVI, MOV, or MKV files fail, re-encode them to MP4 for the broadest browser support.