Free tool · DFXPSRT

Convert DFXP
to SRT

Drop in a .dfxp (Distribution Format Exchange Profile) file, get a clean .srt (SubRip Subtitle) back. SubRip Subtitle is the most universal subtitle format — read by every video editor, media player, and platform. The conversion runs entirely in your browser — your captions never leave the page.

Input · DFXP
Output · SRT
Everything runs in your browser — no upload, no signup.
Need to generate the captions in the first place?
Drop a video into the editor — 5 free minutes, no card needed.
Open editor

Frequently asked

Why convert DFXP to SRT?+

Distribution Format Exchange Profile is the older TTML 1.0 profile from W3C used by Adobe Flash captions and Netflix's pre-IMSC ingest. SubRip Subtitle is built for delivery to almost any video editor or upload form. Converting lets you take a file produced for one workflow and use it in the other without re-typing or re-timing anything.

Is timing preserved exactly?+

Yes. The converter only re-encodes the file structure — start and end times round-trip to within one millisecond.

Does any styling survive the conversion?+

Neither format carries styling, so there's nothing to lose. The text and timing transfer exactly.

Does this run on a server?+

No. The conversion is pure JavaScript running in your browser — files never upload anywhere. Works offline once the page is loaded.

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