Speed Up a Tutorial or Lecture

Make a recorded lesson quicker to get through.

Nid oes angen mewngofnodiMae ffeiliau'n aros yn breifat

Gollwng ffeiliau yma, neu cliciwch i bori

MP4, WebM, MOV, AVI, Video dim cyfyngiad maint ffeil

Pori ffeiliau

Nid yw eich ffeiliau byth yn gadael eich dyfais. Mae'r holl brosesu yn digwydd yn lleol yn eich porwr.

Speed up or slow down a video (0.25×–4×), with pitch-corrected audio. Runs entirely in your browser.

tutorials tips

🎙️

1.5× keeps speech clear (pitch is corrected) while cutting watch time by a third.

🎓

Great for condensing long recorded lectures or webinars.

⏱️

Try 2× for material you're reviewing rather than learning fresh.

🔒

Your recording stays on your device.

Dewiswch Ffeil

Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.

Proses

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Lawrlwythwch

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

✓Hollol rhad ac am ddim - dim costau cudd, byth

✓Nid oes angen cyfrif, e-bost na mewngofnodi

✓Nid yw ffeiliau byth yn gadael eich dyfais

✓Dim cyfyngiadau maint ffeil o gwbl

✓Dim dyfrnodau ar unrhyw allbwn

Make a Slow-Motion Video

Slow a clip down to 0.25×–0.75× for dramatic slow

Speed Up a Video / Timelapse

Fast-forward a long clip to 2×–4× for a timelapse

Speed-Ramp a Clip for Social

Speed a clip up to fit a short-form slot and grab

Slow a Video Down to Analyse It

Slow footage to study a movement or moment frame b