CueHarbor Studio

Terms of use

Last updated: 11 November 2026. Operator: İsmail Tekindemir. Contact ismailtekindemir@gmail.com.

Manual editing scope

You supply reference times and text. The tool does not establish synchronisation with real media, certify accessibility or enforce a broadcast standard. Overlap and text-density flags need editorial judgment. Preview renders stored text literally and does not simulate target-player styling or positioning.

Format and precision limits

UTF-8 cue-only SRT/WebVTT and version 1 JSON are supported, with 1 MB file/project limits, 2,000 cues, 4,000 characters per cue and a 0–100 hour timeline. NOTE/STYLE/REGION/header metadata blocks and inline karaoke timestamps are unsupported. No blank lines are allowed inside cue text. WebVTT identifiers/settings are omitted from SRT output. Header, newlines and numeric indices may be normalised.

Retiming is whole-file, rounded to milliseconds, with scales 0.1×–10×. Invalid boundaries reject the change; no silent clipping occurs. Keep JSON backups and inspect output in your target player.

Your content and service availability

Use and share only material you are permitted to use. The app does not publish or license your content. The free service is provided as available, without a promise of uninterrupted operation or suitability for a particular release. Nothing here limits rights that cannot lawfully be limited. Do not distribute malicious files or misrepresent an automated audit as a full caption review.