One package.
No missing pieces.
Catch missing languages, duplicate deliveries and subtitle timing issues before you send the folder. A clear handoff starts with a clear picture.
Preparing your workspace…
What is CueCheck?
CueCheck is a free subtitle package checker for UTF-8 SRT and WebVTT files. It compares the expected assets and languages with the files supplied, then flags timing and readability issues for review.
How to use CueCheck
- Define the expected assets and language codes, then add SRT or VTT files.
- Review inferred filename mappings and correct any unassigned files.
- Inspect missing or duplicate deliveries and cue flags, then export a CSV or HTML report.
At a glance
| Inputs | UTF-8 SRT and VTT subtitle files |
|---|---|
| Project limits | 100 files, 2 MB per file, 10 MB total |
| Outputs | Delivery matrix, cue checks and CSV or HTML reports |
| Processing | Browser-local; subtitle text and filenames are not uploaded |
Common questions about CueCheck
Can this check whether a translation is correct?
No. CueCheck checks package completeness, timing structure and configurable readability thresholds. It does not assess translation accuracy or watch the video.
Does a reading-speed flag mean the subtitle is wrong?
A flag calls for review. Reading speed, line length and duration depend on the audience and delivery specification; they are not universal pass or fail rules.
Does it rewrite or fix my subtitle files?
No. It produces a report and leaves the original subtitle files unchanged. Correct the source files in your subtitle editor and run the check again.
A more reliable subtitle handoff.
FIELD NOTESCheck the package before checking the cues
A subtitle delivery is an asset-by-language matrix, not just a file count.
02 / GUIDEErrors, review flags and what they actually mean
Interpret timing and readability findings without treating a threshold as a rule.
03 / GUIDEA filename your future self can understand
Use explicit asset and language codes, then verify rather than guess.