3GP → MP4

3GP to MP4

Convert a supported 3GP video into a fast-start H.264/AAC MP4.

Temporary cloud processing. Enable JavaScript to select and convert a file.

About this conversion

What happens

After consent, the source uploads to temporary storage, runs in the offline FFmpeg sandbox, and a separate validator gates download.

Limits

250 MiB input. 15 minutes, up to 3840×2160, and 500 MiB output.

Things to know

Keep the original resolution or cap it at 1080p/720p. Balanced quality suits normal playback and sharing. Only the 3gp4 brand with H.264/AAC is admitted, extra streams, excessive resources, malformed input, timeout, or invalid output fail closed.