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Give your subtitles
a technical check.

Check an SRT for line length, reading speed, empty cues, and timing issues. This tool checks structure, not translation accuracy.

Your file stays in your browser.

No upload, account, or AI API. Results use the thresholds you choose.

Inspect an SRT

These are adjustable defaults, not universal platform requirements. Character counts include spaces and punctuation, exclude markup tags, and count Unicode code points.

Check results

Cues parsedโ€”
Cues flaggedโ€”
Total timelineโ€”

Choose a file, paste subtitles, or try the sample to get started.