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VTTJSONL

VTT to JSONL Converter

Convert VTT files to JSONL entirely in your browser — no upload, no watermark, no sign-up.

Drop files here

or browse from your device

images · audio · video · documents · archives · up to ~500MB

100% Private

Runs in your browser. No upload.

Instant

No queue, no server roundtrip.

Offline-ready

Works after first load.

Why convert VTT to JSONL?

VTT is the web subtitle standard and desktop editors often refuse to import it. JSONL streams line by line, which is what log pipelines and LLM training tooling ingest, so converting turns a file you are stuck with into one you can actually use. Morphix runs the whole VTT → JSONL conversion locally with WebAssembly, so even confidential material never leaves your device.

How it works

Drop your VTT file above and Morphix decodes it locally, then re-encodes it as JSONL using WebAssembly + the browser's native codecs. Nothing is ever uploaded — your files stay on your device. Batch as many files as your machine can handle.

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