How does video comparison work?

The tool samples frames at your chosen FPS from both videos and measures pixel differences. It also decodes audio and compares waveform differences over matching time windows.

Can I change the frame split rate?

Yes. Set sampling FPS between 1 and 30. Higher FPS gives finer detail but takes longer to process.

Is my video uploaded to a server?

No. Everything runs locally in your browser. Your files are never uploaded.

What outputs do I get?

You get average and max difference scores for video and audio, plus a list of timestamps with the biggest differences.

Video Compare - Compare Video A/B Frames and Audio Differences | VideosKit

Free online video compare tool. Upload Video A and Video B, set frame sampling FPS, and detect differences in images and audio. Private browser-side processing with no uploads.

Use Cases

Before/After Edit Validation

Compare source and exported versions to quickly find where visuals or sound changed more than expected.

Encoder and Preset Testing

Use repeatable FPS sampling to compare outputs from different codecs, bitrates, or export presets.

QC for Localization and Dubbing

Spot timeline sections where audio differs significantly after dubbing or language replacements.

Video Compare - Compare Video A/B Frames and Audio Differences | VideosKit

Use Cases

Before/After Edit Validation

Encoder and Preset Testing

QC for Localization and Dubbing

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