Keyframe Extraction failed or not working — what can you do?

What you can do

• Open Keyframe Extraction and retry with a small known-good sample.
• Confirm you are not hitting this limit: Captures the frame at the current playback time, not automatic shot-change detection.
• Check the FAQ below—encryption, size limits, and format mismatches are the usual causes.
• Still stuck? Try a private window, or read the full guide /#article/keyframeextract.

FAQ

What limitations should I know?

Captures the frame at the current playback time, not automatic shot-change detection.

When might it fail?

Frames live in page memory until you download or reset; refresh clears them.

What else should I watch for?

wmv / mkv / avi work only if the browser can play them.

Any other important notes?

Runs locally in the browser—no server upload.