3G2 to MP4 Converter
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Supports: 3GP, 3G2
Advanced Options - Our defaults are optimized for the best results. We recommend you keeping the defaults unless you have a specific need.
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Need help?How to Convert 3G2 to MP4
- Upload Your 3G2 File — Click "Choose Files" or drag and drop your 3G2 or 3GP video file. Both extensions are accepted.
- Choose Video Codec — Under Video Codec, the default for MP4 output is H.264. Available codecs include H.264, H.265/HEVC, AV1, VP8, VP9, MPEG-4, and others.
- Set Video Quality — Under File Compression, choose from: Quality Preset (Highest through Lowest), Target File Size % (1-100% slider with Smart Scaling), Specific File Size (MB/KB), Constant Bitrate, Variable Bitrate, Constant Quality (CRF), or Constraint Quality.
- Set Audio Codec — Under Audio Codec, the default for MP4 is AAC. Other options include MP3, AC3, Opus, and more.
- Adjust Resolution (Optional) — Under Video Resolution, keep the original or choose presets (1080p, 720p, 480p, etc.) or custom dimensions.
- Trim (Optional) — Under Trim, set a Start Time and Duration to extract a specific segment.
- Convert & Download — Click "Convert" and download your MP4 file.
Why Convert 3G2 to MP4?
3G2 (3GPP2) is a multimedia container format developed for CDMA mobile networks — it was the standard video format on older flip phones and early smartphones from carriers like Verizon and Sprint. These files use low-resolution video (typically 176×144 or 320×240) with basic codecs. Converting 3G2 to MP4 makes these legacy recordings playable on modern smartphones, tablets, and computers, uploadable to YouTube, social media, and cloud storage, editable in modern video editors (Premiere Pro, iMovie, DaVinci Resolve), and preservable in a future-proof format before the original files become unreadable.
3G2 vs MP4 Comparison
| Feature | 3G2 (3GPP2) | MP4 |
|---|---|---|
| Era | 2000s flip phones | Modern universal |
| Typical resolution | 176×144 to 320×240 | Up to 8K |
| Video codec | H.263, MPEG-4 | H.264, H.265, AV1 |
| Audio codec | AMR, AAC | AAC, MP3, AC3 |
| File size (1 min) | 200 KB - 2 MB | Varies by quality |
| Device support | Legacy phones | Universal |
| Streaming | Not supported | Widely used |
Common Use Cases
- Legacy phone video recovery — Convert old 3G2 recordings from flip phones before the files become inaccessible
- Family video archival — Preserve early mobile video memories in a modern, universally playable format
- Social media upload — 3G2 files are not accepted by any social platform; MP4 is accepted everywhere
- Video editing — Import legacy mobile recordings into modern editors for compilation or restoration projects
Will converting improve the video quality?
No. The original 3G2 video is typically very low resolution (176×144 or 320×240). Converting to MP4 preserves the existing quality in a modern container but cannot add detail that wasn't captured. Avoid upscaling — keep the original resolution for the most honest representation.
Which video codec should I choose?
H.264 (the default) is the safest choice for maximum compatibility. For these small, low-resolution files, H.264 is more than sufficient. H.265 or AV1 won't provide meaningful size savings on files that are already tiny.
Can I convert 3GP files too?
Yes. This tool accepts both .3g2 and .3gp files — they are closely related formats (3GPP2 for CDMA networks, 3GPP for GSM networks). Both are converted to MP4 with the same options.
Can I trim the video during conversion?
Yes. Under Trim, select "Time Range" and enter a Start Time and Duration in seconds or HH:MM:SS.sss format. This lets you extract a specific clip from a longer recording.
How small are 3G2 files compared to MP4?
3G2 files are already very small due to their low resolution. A 1-minute 3G2 clip is typically 200 KB to 2 MB. The MP4 output may be slightly larger (due to H.264 overhead) or similar in size. The benefit is compatibility, not compression.