Convert 3GPP Multimedia (.3gpp) to MPEG-4 Part 14 (.mp4) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .3gpp file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .mp4 file when it's ready.
MP4 (MPEG-4 Part 14) is the undisputed universal video format. Every web browser, smartphone, smart TV, game console, social media platform, and video editor supports MP4 natively. Converting 3GPP files from GSM-era mobile phones to MP4 is the single most impactful conversion you can perform — it transforms obsolete carrier-specific recordings into a format that works literally everywhere, with the best possible hardware-accelerated playback.
3GPP is a format from the GSM mobile era that has no relevance in today's media landscape. The codecs it commonly uses (H.263, AMR) are deprecated, unsupported by hardware decoders on modern chips, and produce poor visual quality by current standards. MP4 with H.264 video and AAC audio is the format of the internet age — accepted by YouTube, Instagram, TikTok, WhatsApp, iMessage, email, and every platform you might share video through.
Beyond compatibility, MP4/H.264 enables hardware-accelerated decoding on every modern processor, meaning smoother playback, less CPU usage, and better battery life on mobile devices. There is no reason to keep any video in 3GPP format when MP4 exists.
FFmpeg reads the 3GPP container and either remuxes (if the source contains H.264+AAC) or transcodes to H.264+AAC in an MP4 container. CRF-based encoding (18-23) provides the optimal quality-to-size ratio. The moov atom is placed at the file beginning for web-optimized fast start. Audio is typically encoded at 128-192 kbps AAC LC.
The MP4 output at any reasonable quality setting equals or exceeds the 3GPP source. H.264 is more efficient than H.263, meaning the same visual quality in a smaller file. AAC at 128 kbps sounds better than AMR's 12.2 kbps. The conversion effectively upgrades every aspect of the media while preserving the original content.
| Device | 3GPP | MP4 |
|---|---|---|
| Windows PC | Partial | Native |
| macOS | Partial | Native |
| iPhone/iPad | Partial | Native |
| Android | Partial | Native |
| Linux | Partial | Native |
| Web Browser | No |
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Resolution: 1280x720
Bitrate: 4 Mbps
Converting 3GPP to MP4 is the most universally useful operation for legacy GSM phone recordings. MP4 is the format everything expects, everything plays, and everything will continue to support for the foreseeable future.
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Λειτουργεί παντού
| Native |
8MB free, 50MB Nitro
Οποιοδήποτε πρόγραμμα περιήγησης, οποιαδήποτε συσκευή
| Χαρακτηριστικό | 3GPP | MP4 |
|---|---|---|
| Πλήρες όνομα | 3GPP Multimedia File | MPEG-4 Part 14 |
| Επέκταση | .3gpp | .mp4 |
| Ιδανικό για | Mobile standard | Universal compatibility |