3GPP to 3GP Converter

How to Convert 3GPP to 3GP Online

1. Upload Your 3GPP File: Drag and drop your .3gpp file or click "Add Files" to browse. Batch is supported — queue several recordings at once.
2. Pick a Video Codec: Default keeps the source codec (H.263 or H.264) for a fast lossless remux. Choose H.264 for modern player support, H.263 for legacy feature-phone compatibility, or MPEG-4 if a downstream tool requires it. Pair with AAC or AMR (NB/WB) audio.
3. Resolution, Trim, and Quality (Optional): Pick a resolution preset (176×144 QCIF, 320×240 QVGA, 480×360, 640×480, 720p, 1080p), scale by percentage, or set a custom width/height. Trim with start time + duration in HH:MM:SS.sss. Tune output via Quality Preset (Highest → Lowest), CRF (18 visually lossless, 23 default, 28 smaller file), constant/variable bitrate, or a target file size in MB.
4. Convert and Download: Click "Convert" and grab the .3gp file. Files process in your browser session — no sign-up, no watermark, no install.

Why Convert 3GPP to 3GP?

3GPP and 3GP are the same multimedia container — both are defined by the 3rd Generation Partnership Project for UMTS/3G mobile networks and use the same MPEG-4 Part 12 (ISO base media) structure. The split is purely about file extensions: some recorders, players, and apps emit .3gpp, others emit .3gp, and a few tools accept only one. Converting between them is essentially a remux/repackage when you keep the codecs intact. Re-encoding is only needed if you also change the codec, resolution, bitrate, or duration.

• Phone recordings the editor refuses to open — Older Android camcorder apps and voice recorders sometimes save as .3gpp. If your editor or NLE only sees .3gp, this rebrands the file without quality loss.
• Uploading to legacy CMS or feature-phone gateways — MMS gateways, kiosk uploaders, and some carrier portals match strictly on .3gp. The container is identical; only the extension is rejected.
• Voicemail and call-recording exports — VoIP apps and PBX systems frequently dump .3gpp with AMR-NB audio. Many transcription pipelines and audio editors expect .3gp.
• Archive normalization — When backing up old phone footage to NAS or cloud, picking one extension keeps the library consistent and improves search/scrub behaviour in media managers like Plex, Jellyfin, or VLC playlists.
• Web embeds and HTML5 <source> tags — Browsers map MIME types from extension; sticking to .3gp (video/3gpp) avoids the .3gpp MIME quirks some servers don't have configured.
• Cross-converting later — Once normalized to .3gp, downstream tools like 3GP to MP4 or 3GP to MOV work without per-file extension fiddling.

3GPP vs 3GP — Format Comparison

The two are byte-for-byte the same family. A pure remux (copy streams, change wrapper extension) is lossless.

Codec Quick Guide for 3GP Output

Frequently Asked Questions

Is converting 3GPP to 3GP lossless?

Yes, when you keep the source codecs. The default flow copies the existing video and audio streams into a .3gp wrapper without re-encoding, so quality is byte-identical. Quality is only affected if you intentionally change the codec, resolution, bitrate, or trim points.

Can't I just rename the .3gpp file to .3gp?

Sometimes, yes. Because the underlying container is the same, a manual rename works in many players (VLC, MX Player, modern Android). It fails when an app validates the file via MIME sniffing or when an upstream pipeline rejects the source extension before it ever opens the bytes. This converter does the rename plus a clean container rewrite, which is more reliable.

Why do some phones save as .3gpp instead of .3gp?

It comes down to OEM defaults. Several Android camcorder apps, AOSP-based recorders, and older Sony/HTC firmware emitted .3gpp to match the spec name. Samsung, LG, and most carriers shipped recorders that wrote .3gp. Both files came off the same MPEG-4 ISO container code path.

Will my AMR audio still work after conversion?

Yes. AMR-NB and AMR-WB are native to the 3GPP container family, and a copy-codec convert preserves them in the .3gp output. If you'd rather have broader playback support (e.g., on desktop browsers or DAWs), pick AAC-LC at 96–128 kbps in the audio settings — that re-encodes the audio but keeps the .3gp wrapper.

What's the largest file I can convert?

The browser is the limit, not a fixed quota. Mobile recordings rarely exceed 50–200 MB even at 1080p H.264, and the converter has handled multi-hundred-MB inputs. For very long captures, trim first via the Trim option (start + duration in HH:MM:SS.sss) to extract just the segment you need.

Does 3GP support 1080p or 4K, or is it a low-res format?

The container supports any resolution H.264 supports, including 1080p and 4K — there is no codec-level cap. In practice, 3GP files are usually QCIF (176×144), QVGA (320×240), or 480p because the format was designed for 3G bandwidth. If your source is 1080p smartphone video, output stays 1080p unless you pick a smaller preset.

Should I convert to MP4 instead?

If your only goal is wider compatibility, MP4 is a better long-term target — it shares the same MPEG-4 Part 12 base but is the de facto standard for browsers, social platforms, and editors. Use 3GPP to MP4 for that route. Stick with .3gp only when a specific tool, gateway, or device explicitly requires the extension.

Will the conversion strip my 3GPP Timed Text subtitles?

No. The .3gp container supports the same 3GPP Timed Text track type, so subtitles are preserved on a copy-codec remux. If you need the subtitles in a more portable format afterward, convert to MP4 and the timed text track typically maps to TX3G/MOV text.

Can I trim or crop while converting?

Yes. The Trim option takes a start time and duration in HH:MM:SS.sss format, so you can extract just the clip you need in the same pass. Note that trimming forces a partial re-encode around the cut points; the rest of the stream is still copied directly.