3GP to MKV
Convert 3GP to MKV in your browser. Your file is never uploaded.
This free 3GP to MKV converter runs in your browser. Drop in a 3GP file and download a MKV a moment later, with no upload, no sign-up, and nothing to install. Because the work happens on your own device, your file never leaves it.
What is 3GP?
3GP is a compact format made for older mobile phones. It keeps files tiny at the cost of quality.
What is MKV?
MKV (Matroska) is a flexible open container that can hold many video, audio, and subtitle tracks. It is popular for high-quality video but not accepted by every player or site.
Questions
Is the 3GP to MKV converter free?
Yes, it is free with no sign-up and no watermark. There is no cap on how many files you can convert, and nothing to install.
Do my files get uploaded to a server?
No. The conversion runs entirely in your browser using code that loads onto your device, so the file is read, converted, and downloaded locally. It never reaches us or anyone else.
Will the conversion lose quality?
MKV uses lossy compression, so re-encoding can cost a little quality. Near the top of the quality setting the difference is hard to see, and for most uses it is not noticeable.