Question 1

Is FinalConvert really free?

Accepted Answer

Yes, completely free. There are no subscriptions, no file size limits tied to a paywall, and no hidden fees. FinalConvert runs entirely in your browser using WebAssembly.

Question 2

Are my video files uploaded to a server?

Accepted Answer

No. Your files never leave your device. All processing happens locally in your browser using FFmpeg compiled to WebAssembly. We have no servers that receive or store your videos.

Question 3

What video formats are supported?

Accepted Answer

FinalConvert supports all major formats including MP4, MKV, MOV, WebM, AVI, and more. For codecs, H.264, H.265, and AV1 are supported depending on your browser.

Question 4

Is there a file size limit?

Accepted Answer

There is no hard limit imposed by FinalConvert. The practical limit depends on your device's available RAM. Most modern devices handle files up to several gigabytes without issues.

Question 5

How long does conversion take?

Accepted Answer

It depends on the file size, codec, and your device's CPU. A typical 1080p video takes 1–5 minutes. Simple operations like changing the container format (e.g., MP4 to MKV) are near-instant.

Question 6

Can I use FinalConvert on mobile?

Accepted Answer

Yes. FinalConvert works on modern mobile browsers (Chrome, Safari). Performance depends on your device — newer phones handle conversion well, while older devices may be slower.

Question 7

Does it work offline?

Accepted Answer

Once the page is fully loaded, FinalConvert can process videos without an internet connection. The FFmpeg engine is loaded once and runs entirely on your device.

Convert videos privately, right in your browser