3GP Converter Free & Private
Compact mobile video for 3G networks. Convert 3GPP Video files entirely in your browser — no upload, no account.
About 3GPP Video
3GP (3GPP file format) was designed by the 3rd Generation Partnership Project for mobile multimedia over 3G cellular networks. It prioritises tiny file sizes over visual quality, making it common on older feature phones and early smartphones. While modern phones use MP4, 3GP files are still encountered when transferring media from legacy mobile devices.
Technical details
| Container | 3GPP (.3gp, .3g2) |
| Video codecs | H.264 (Baseline), MPEG-4, H.263 |
| Audio codecs | AAC, AMR-NB, AMR-WB |
| Max resolution | Typically 352×288 (CIF), up to 720p |
| Streaming | RTSP, 3GPP streaming |
| Metadata | Basic (title, author) |
Best for
Legacy mobile device compatibility, extremely low-bandwidth scenarios
Advantages
- Extremely small file sizes
- Plays on virtually all mobile phones, including feature phones
- Low bandwidth requirements — works on slow connections
Limitations
- Very low video quality compared to modern formats
- Limited resolution and codec options
- Obsolete for modern use
Convert other formats to 3GP
3GP compatibility
All mobile phones (including feature phones), VLC, most media players
Why privacy matters for file conversion
Most online converters upload your files to remote servers where they may be scanned, stored, or shared. This tool is different — the conversion runs in your browser via WebAssembly or the WebCodecs API. Your files stay on your device. Always.
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Frequently asked questions
3GP uses aggressive compression optimised for mobile networks. This sacrifices quality for tiny file sizes — a 1-minute 3GP video might be 500KB vs 50MB for HD MP4.
Yes, completely free with no file limits. The conversion engine runs directly in your browser — we have zero server costs for processing, so we can offer it at no charge.
Your file never leaves your device. The conversion engine runs 100% in your browser using WebAssembly or the WebCodecs API. We have no access to your files — no uploads, no logs, no data collection whatsoever.
On desktop browsers (Chrome, Firefox, Edge) files up to 500 MB convert reliably. On Safari (macOS) the practical limit is around 200 MB. On iPhone and iPad, keep files under 50 MB — iOS enforces tight memory limits for browser-based processing.
On your first visit, the browser downloads the conversion engine (24–50 MB depending on which backend is used). This is cached locally, so subsequent conversions load much faster.
Chrome, Edge, and Brave use hardware-accelerated WebCodecs when the format is supported — this is 5–10× faster than software encoding. For unsupported formats the tool falls back to ffmpeg.wasm, where Firefox typically performs best.
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