Video to 3G2 Converter

How to Convert Video to 3G2 Online

1. Upload Your Video File: Drag and drop or click "+ Add Files" to select MP4, MOV, AVI, MKV, WebM, FLV, WMV, MPEG, or any of 30+ accepted input formats. Batch conversion is supported — queue multiple clips and apply the same 3G2 settings to all.
2. Pick Quality Preset: Default is "Very High (Recommended)." Drop to "Medium" or "Low" if you're targeting a small file for an older CDMA handset, or switch to "Specific file size" to cap output (handy for MMS-style limits), "Constant Bitrate" for predictable streaming, or "Constant Quality" / "Constraint Quality" to lock visual fidelity while letting bitrate float.
3. Set Video resolution and Trim (Optional): Keep original, pick a preset (240p, 360p, 480p, 720p, 1080p), scale by percentage, or enter custom Width × Height. Use the Trim section to set a Time Range and export only the segment you need — useful when your source is a long capture but the target device only needs a short clip.
4. Convert and Download: Click "Convert." Files are processed on our servers and download links appear next to each entry — no sign-up, no watermark, and originals are auto-deleted automatically after a few hours.

Why Convert Video to 3G2?

The 3G2 (3GPP2) container was standardized in January 2004 by 3GPP2 for CDMA2000 mobile networks — historically the Verizon, Sprint, and KDDI side of the carrier world, separate from the GSM-based 3GP container. It's structurally derived from the ISO base media file format (MPEG-4 Part 12) and typically carries H.263, MPEG-4 Part 2, or H.264/AVC video alongside audio codecs like AMR-NB and AMR-WB. Although CDMA2000 networks have been largely retired (Verizon shut down its CDMA network on December 31, 2022; Sprint's was decommissioned by T-Mobile in 2022), 3G2 files still surface in archives, court evidence, embedded systems, and recovery work — and many tools still expect the .3g2 extension specifically.

• Legacy CDMA handset archives — Old voicemails, MMS attachments, and camera clips from BlackBerry, LG, Motorola, Kyocera, and early Samsung CDMA phones were saved as .3g2. Reproducing the original container keeps timestamps and metadata aligned with the source device's expectations.
• Forensic and evidence preservation — Investigators and archivists sometimes need to keep video in the original .3g2 wrapper for chain-of-custody reasons rather than re-encoding to MP4, even when the codec inside is identical.
• Embedded device compatibility — Some industrial cameras, security DVRs, and white-label car dash units still output or expect 3G2, especially hardware sourced from CDMA-era OEMs. Producing a properly muxed .3g2 keeps the firmware happy.
• Small file targets for slow links — H.263 + AMR-NB inside a 3G2 container produces tiny files (often under 1 MB per minute at QCIF), useful when emailing over metered or satellite links where even MP4 would be too large.
• Replaying retro mobile content — Hobbyists running emulated J2ME / BREW environments or vintage CDMA hardware need the original container to test playback without re-wrapping.
• Educational and standards work — Telecom courses, codec test suites, and ISO/IEC 14496-12 demonstrations frequently use 3G2 alongside 3GP to show CDMA2000 vs GSM container variants. See MP4 to 3G2 and MOV to 3G2 for source-specific pages, or Video to 3GP if you need the GSM variant instead.

3G2 vs 3GP — Format Comparison

Quality Preset Quick Guide

Frequently Asked Questions

What's the difference between 3G2 and 3GP, and which should I pick?

3G2 was built for CDMA2000 networks (Verizon, Sprint, KDDI) by 3GPP2, while 3GP was built for GSM/UMTS networks by 3GPP. If you're targeting a specific legacy CDMA device or matching the extension on an existing archive, pick 3G2. If you just want "a small mobile-friendly video" and don't care about the historical network, 3GP has slightly broader native Android support and is the more common choice today. The container payload (H.263/H.264 video, AMR audio) is otherwise nearly identical.

Why would I convert to 3G2 in 2026 when 3G networks are dead?

Three honest reasons: (1) you have an existing .3g2 archive and want new clips to match it; (2) embedded hardware or software still expects the .3g2 extension and won't accept .mp4 even if the codec inside is the same; (3) forensic or evidentiary workflows require preserving the original container family. If none of those apply, MP4 (H.264 or H.265) is the more practical target — try MP4 to 3G2 in reverse, or just stick with MP4.

What video and audio codecs does xconvert put inside the 3G2 container?

By default we mux H.264/AVC video with AAC audio, which produces a 3G2 that plays in QuickTime, VLC, MX Player, and most modern players. If you specifically need H.263 + AMR-NB for an older CDMA handset, drop the resolution to 240p or 360p and choose a lower quality preset — the encoder will fall back to codec profiles those devices understand. We don't currently expose EVRC or QCELP audio, which were CDMA carrier codecs rarely needed today.

How small can I make the output file?

Very small. At 176×144 (QCIF) with H.263 video and AMR-NB audio (8 kHz mono speech), a one-minute 3G2 can land under 300 KB. Use the "Specific file size" mode in File Compression to set an exact target — useful for legacy MMS-style 300 KB or 600 KB limits. At higher resolutions (480p+) you'll see 5–15 MB per minute depending on motion and the quality preset.

Will my 3G2 file play on a modern iPhone or Android phone?

It depends on the codec inside. Most modern phones play H.264-in-3G2 just fine in their default video player. AMR audio is sometimes skipped on iOS — if you hit silent playback on an iPhone, that's the audio codec, not the container. Installing VLC for Mobile (iOS) or MX Player (Android) sidesteps the issue, since both decode every codec 3G2 can carry.

Can I trim a long video and only export part of it as 3G2?

Yes — expand the Trim section, switch from "Unchanged" to "Time Range," and enter start / end timestamps in HH:MM:SS.mmm. We re-encode only the selected range, which keeps output files tiny when you only need a clip. For audio-only excerpts you can also use Audio Cutter on the converted file.

Why is my 3G2 file blurry or pixelated?

3G2 was designed for sub-VGA resolutions (176×144 QCIF, 352×288 CIF) — that's the format's origin story. If you push a 4K source through a 3G2 conversion at 240p with the "Low" preset, the output will look blocky because the codec is doing heavy quantization at a tiny resolution. To preserve quality, bump the resolution preset to 720p, pick "Very High" or "Highest" quality, and accept that the file will be larger. If you need both small AND sharp, MP4 with H.265 is a better target than 3G2.

Are my uploaded videos private?

Yes. Files are processed on our servers over HTTPS, are not shared with third parties, and originals plus converted outputs are deleted automatically after a few hours. No account is required. We don't watermark output, and there's no daily file-count cap on free use.

Can I convert 3G2 back to MP4 or another modern format?

Yes — that's actually the more common direction these days. See 3G2 to MP4 for the reverse conversion, or pick from any of our 50+ 3G2-to-X pages if you need MOV, WebM, MKV, or audio-only extraction. You can also compress an existing 3G2 without converting if you just need a smaller file in the same container.