3G2 to 3GP Converter

How to Convert 3G2 to 3GP Online

1. Upload Your 3G2 File: Drag and drop, or click "Add Files" to select one or more .3g2 clips. The picker also accepts .3gp so you can normalize a mixed batch in one job.
2. Pick a Quality Preset: Default is Very High (Recommended), which keeps the source visually intact. Drop to High or Medium for smaller files at near-identical quality, or open the codec menu to switch from the default H.263 video and AMR-NB audio to H.264 + AAC for sharper output and broader playback support.
3. Resize, Trim, or Tune Bitrate (Optional): Set Video resolution with a preset (4320p down to 144p), an exact width × height, or a percentage scale. Use Time Range under Trim to extract a HH:MM:SS.sss segment. Switch the bitrate mode between Constant Bitrate, Variable Bitrate, Constant Quality, or Constraint Quality if you need a target file size.
4. Convert and Download: Click Convert and grab the .3gp output. Conversion runs in your browser session — no sign-up, no watermark, no email gate.

Why Convert 3G2 to 3GP?

3G2 (.3g2, MIME video/3gpp2) and 3GP (.3gp, MIME video/3gpp) are both ISO base media file format containers (MPEG-4 Part 12) built for early 3G phones. The split is regulatory: 3GPP2 standardized 3G2 in January 2004 for CDMA2000 networks (Verizon, Sprint, KDDI, China Telecom), while 3GPP standardized 3GP in April 2003 for GSM/UMTS networks used by the rest of the world. 3GPP2 went dormant in 2013 and its website went offline in 2023 as carriers shut down CDMA in favour of LTE — meaning 3G2 is effectively a frozen, US-legacy format. Converting to 3GP unlocks the ecosystem that's still maintained.

• Open old CDMA-phone footage on a current device — Recordings from a 2008-2013 Verizon flip phone, BlackBerry, or LG VX series often save as .3g2. Stock players on modern Android, iOS, and Windows are far more reliable with .3gp.
• Editor compatibility — Free editors like Shotcut, OpenShot, and DaVinci Resolve happily ingest 3GP via FFmpeg, but trip on QCELP/EVRC audio that 3G2 sometimes carries; converting strips that exotic audio path and re-encodes to AMR-NB or AAC.
• Move CDMA-era recordings into MP4 workflows — 3GP shares 3GP's MPEG-4 codec lineage, so once your file is .3gp it's a one-click step to MP4 via 3GP to MP4.
• Re-share archived MMS clips — Old multimedia messages saved off CDMA phones land as 3G2; most current carriers and messaging apps prefer 3GP or MP4 wrappers for forwarded clips.
• Restoration and archival projects — Genealogy and home-video archivists consolidating mixed-handset footage from the 2005-2012 era end up with both extensions; standardizing to 3GP simplifies cataloging and storage.
• Forensic and evidence handling — Law enforcement and legal-tech workflows that ingest seized-device footage often require a single container; 3GP is the more universal target.

3G2 vs 3GP — Format Comparison

Codec and Bitrate Quick Guide

Frequently Asked Questions

What is the actual difference between a 3G2 and a 3GP file?

They are sibling containers that share the same ISO base media file format (MPEG-4 Part 12) and the same video codec list (H.263, MPEG-4 Part 2, H.264). The split is the audio codec set and the standards body. 3G2 was defined by 3GPP2 for CDMA2000 networks and includes CDMA-specific speech codecs (EVRC, EVRC-B, EVRC-WB, QCELP, SMV, VMR-WB). 3GP was defined by 3GPP for GSM/UMTS and adds AMR-WB+ and HE-AAC v2. If your 3G2 file uses common video plus AAC or AMR audio — which most do — the conversion is essentially a container relabel; if it uses EVRC or QCELP audio, this tool re-encodes the audio track to AMR-NB or AAC.

Will I lose video quality going from 3G2 to 3GP?

No, when both files use the same video codec and you keep "Very High" quality. Both containers carry identical H.263, MPEG-4, or H.264 streams, and a copy-or-near-copy keeps frames intact. Quality only drops if you switch codecs (e.g., H.263 → H.264) at a low bitrate, or if you downscale resolution. The default preset is tuned to be visually transparent.

Why doesn't my Android or iPhone play the 3G2 file natively?

Modern mobile OSes ship decoders tuned for MP4/H.264/AAC, and most have quietly dropped CDMA-era audio codecs like EVRC and QCELP. Stock Android Photos, iOS Files, and Windows Media Player often refuse 3G2 with EVRC audio even though the same H.264 video would play if it were inside a .3gp or .mp4 wrapper. Converting to 3GP with AAC audio resolves it.

Is 3GP still relevant in 2026?

Less for new content, but very much for archival. No mainstream phone records to 3GP today — they record HEVC or H.264 inside MP4. But 3GP remains in the 3GPP TS 26.244 spec, FFmpeg, VLC, and major NLEs continue to support it, and it's the single most compatible container for any 3G-era footage you want to preserve. For new uploads, target MP4 instead.

Can I convert 3G2 to MP4 in one step instead?

Yes — for most workflows it's the better destination. See 3G2 to MP4 for a direct path. Use 3GP only when the receiving device or software specifically requires the .3gp extension; otherwise MP4 with H.264 + AAC is the more universal modern container.

What audio codec will the output use?

By default the converter writes AMR Narrow Band (AMR-NB) at 8 kHz mono, matching the original 3GP profile and keeping files small. For voice-and-music content, switch the audio codec to AAC-LC under Advanced Options — it produces clearer audio at typical mobile bitrates and is decoded by every modern device. AMR-WB and HE-AAC are also available if you need them.

What's the maximum file size I can convert?

3G2 sources are almost always small — old phone cameras recorded at QCIF or QVGA at low bitrates, so a typical 30-second clip is under 2 MB and a full memory-card dump fits well within normal upload limits. If you have an unusually long capture, batch the files or trim before conversion.

Can I convert multiple 3G2 files into one 3GP?

This converter outputs one 3GP per input. To stitch a series of 3G2 clips into a single 3GP timeline, convert each to 3GP first, then use a video joiner — or convert directly to MP4 and merge with any modern editor. Mixed concatenation while transcoding from CDMA-era audio codecs is brittle, which is why a two-stage workflow is more reliable.

Why is the output 3GP file slightly larger than the source 3G2?

Two reasons. First, this tool re-encodes the video by default rather than stream-copying, and the new bitrate is chosen for visual quality rather than the source's original cap. Second, switching audio from a CDMA speech codec (EVRC at ~8 kbps) to AMR-NB or AAC (typically 12-32 kbps) modestly grows the audio track. To match or beat the original size, drop Quality Preset to Medium and pick AMR-NB audio, or use 3G2 to MP3 if you only need the audio.