Create · Ettix CaptionDelta

Check caption coverage before you deliver a video.

Compare subtitle tracks on the same timeline and find missing coverage, timing shifts and fast-reading cues. Available in English and Spanish.

Self-serve

Opens captiondelta.ettix.com. No account needed.

Illustration Illustration of a gap on a shared subtitle timeline.

CaptionDelta

What it does

Open SRT or WebVTT tracks
Use a reference and a translation timed to the same video cut.
Review the timeline
Find areas with missing coverage, timing differences or fast-reading subtitles.
Share findings
Copy findings for a pair of tracks free.
Optional 30-day pass
Pay $9 USD once through Square or PayPal for multiple translations, presets and PDF or CSV reports.

Access: Self-serve: Compare two tracks free. Optional 30-day pass for $9 USD.
Status: Available
Made for: Video editors and subtitle translators
Address: captiondelta.ettix.com

Subtitle content is processed in your browser.
Use subtitle tracks from the same cut and review flagged time ranges against the video.

Ask us about pricing, terms and data handling for CaptionDelta. This Ettix site only describes the product; see site notice & data for this site. Questions? Contact Ettix about CaptionDelta.

Information last confirmed 2026-11-09.