Question 1

Is my video uploaded to a server?

Accepted Answer

No. The conversion runs entirely in your browser using your device's own video engine. Your file never leaves your computer, and there is nothing for us to store or delete.

Question 2

Does trimming lose quality?

Accepted Answer

No. Trimming copies the original video and audio without re-encoding, so quality is identical to the source.

Question 3

Why does the cut snap slightly?

Accepted Answer

Fast, lossless trimming cuts on keyframes, so the start can land a fraction of a second early. That avoids re-encoding the whole file.

Question 4

Can I cut a section out of the middle?

Accepted Answer

Not in one pass. This keeps a single range. To remove a middle section, trim the two halves you want and join them in a real editor.

Question 5

Is the audio trimmed too?

Accepted Answer

Yes. Both tracks are cut to the same range and stay in sync, because neither is re-encoded.

Question 6

Why is it so much faster than other trimmers?

Accepted Answer

Nothing is uploaded and nothing is re-encoded. It rewrites the container around the range you picked, which is close to a file copy.

Question 7

Is it free, and is there a watermark?

Accepted Answer

It is free with no watermark, no sign-up, and no export limit. There is nothing to buy here; the paid plan is on the Recast desktop app, which is a different product.

Question 8

How large a file can I convert?

Accepted Answer

The whole file is held in your device memory, so the ceiling depends on your machine. The upload panel shows the limit it worked out for your device, and it will tell you before it starts rather than failing halfway.

Question 9

Which browsers work?

Accepted Answer

Chrome, Edge, and other Chromium browsers have the broadest support. Firefox and Safari handle some operations. The page probes your browser on load and says plainly if a step is unsupported, so you never wait on a conversion that cannot run.

Question 10

Does it work on a phone?

Accepted Answer

It runs, but a phone has far less memory than a laptop, so keep the file small. For anything long, use a desktop browser.

Question 11

Does it work offline?

Accepted Answer

Once the page has loaded, yes. Nothing is fetched during the conversion, so it keeps working with the connection off.

Question 12

Why is my browser fan spinning?

Accepted Answer

Video work is CPU-heavy and it is happening on your machine rather than on a server. That is the trade for not uploading anything. Closing other tabs helps on a long file.

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