Convert CSV
to DFXP
Drop in a .csv (Comma-separated values) file, get a clean .dfxp (Distribution Format Exchange Profile) back. Distribution Format Exchange Profile is the older TTML 1.0 profile from W3C used by Adobe Flash captions and Netflix's pre-IMSC ingest. The conversion runs entirely in your browser — your captions never leave the page.
Frequently asked
Why convert CSV to DFXP?+
Comma-separated values is one row per cue with index, start, end, and text columns — opens in any spreadsheet. Distribution Format Exchange Profile is built for legacy Flash players, archival deliverables, and pre-IMSC ingest pipelines. 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.