Ensure safety & accessibility

Video Flash Analysis

Scan video flashes to meet accessibility standards and protect viewers with PSE and other sensitivities.

100% private. Video never leaves your browser.

Drop files to attach (MP4, MOV, WEBM)

Note: Processing runs in your browser. For best results, use a high-performance device.

How it works

Upload your video

Select or drag & drop a video into the upload box. Available formats: MP4, MOV, WEBM

Start the analysis

Review the video metadata and configure your analysis settings::

Standard: Choose between WCAG 2.2 and ISO/DIS 9241-11 definitions.
Reduce Motion Noise: Decreases false positives from fast-moving objects.

Processing video

Analysis runs in your browser, so please keep this tab open. Processing time is based on your computer’s speed and mode selected.

Interpreting results

Charts display luminance and red-ratio changes over time. Warning boxes highlight actual violations: flashes occurring at more than 3 per second and exceed WCAG thresholds.