Add your LRC file
Drop one or more .lrc files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
Converting a .lrc file to .dfxp extracts the document's content from its office package into a portable form. Free, private, and validated — the file never leaves your browser.
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.Converting a .lrc file to .dfxp extracts the document's content from its office package into a portable form. A .lrc file is a synchronized lyric document: each line is prefixed with a [mm:ss.xx] timestamp so a music player can highlight words in time with a song. Unlike caption formats, an .lrc line stores only a start time, with its end implied by the next timestamp.
A .dfxp file is a TTML document written to the Distribution Format Exchange Profile — the profile the W3C defined for handing finished captions to a distributor. The extension signals the profile; the contents are ordinary TTML, which is why the same parser reads both. For this route the practical draw is accepted by name across a wide set of streaming ingest specifications and fully TTML, so any TTML tool can read and validate it — balanced against the distinct extension implies a distinct format and regularly confuses tooling, which is worth knowing before you commit a large batch.
The practical trigger for this conversion is usually a mismatch: with .lrc, stores only start times, so line durations must be inferred on conversion. Switching to .dfxp buys you accepted by name across a wide set of streaming ingest specifications, which is why it is the better fit for delivering captions to a platform whose spec names DFXP by extension. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
| Aspect | LRC synced lyrics (.lrc) | DFXP timed text (.dfxp) |
|---|---|---|
| Format type | Text-based — characters and structure, so there is no visual quality loss | Text-based — characters and structure, so there is no visual quality loss |
| How it stores data | each timed line begins with one or more [mm:ss.xx] tags; the fraction is usually centiseconds | the document is TTML: a <tt> root, a <body>/<div> structure, and <p> cues with begin and end attributes |
| Strongest at | displaying scrolling, time-synced lyrics in a music player | delivering captions to a platform whose spec names DFXP by extension |
| Weak spot | stores only start times, so line durations must be inferred on conversion | the distinct extension implies a distinct format and regularly confuses tooling |
Drop one or more .lrc files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
Select .dfxp in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if DFXP is selectable, the route is real and validated.
Press Convert. The package is unzipped in memory and its XML content parsed locally; nothing is uploaded.
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid DFXP file. Outputs keep the original filename with the .dfxp extension.
There is no visual quality to lose — lrc is text-oriented and dfxp is text-oriented, so the question is structural fidelity. Text, ordering, and basic structure are preserved; complex layout, embedded objects, and styling beyond the target's model are simplified.
Yes — the .lrc file is processed inside your browser tab and never uploaded. The package is unzipped in memory and its XML content parsed locally; nothing is uploaded. Close the tab and the file is gone from memory.
Streaming ingest pipelines, caption editors such as Subtitle Edit and CaptionMaker, and any TTML-aware library open .dfxp. Browsers and consumer players do not. Novus Convert reads it through the same hardened TTML parser used for .ttml — no document types, no external entities, no network access — and writes any of the twelve timed-text targets.
It depends on the content: the document is TTML: a <tt> root, a <body>/<div> structure, and <p> cues with begin and end attributes. Convert one representative file first and compare before batch-processing a large set.
Yes — the reverse route exists as a separate tool. Bear in mind that round-tripping .lrc → .dfxp → .lrc is not a perfect undo when any lossy step is involved; keep your original if fidelity matters.