3GP to DivX Converter

How to Convert 3GP to DivX Online

1. Upload Your 3GP File: Drag and drop, or click "+ Add Files" to pick a .3gp or .3g2 video off your computer or phone. Both 3GPP (GSM) and 3GPP2 (CDMA) recordings are accepted, and you can queue several files at once.
2. Pick a Quality Preset: The default is "Very High (Recommended)" — keep it for archival. To shrink the output, switch to "Specific file size" (target MB/KB), "Constant Bitrate" or "Variable Bitrate" (set kbps), "Constant Quality" (CRF, lower = better), or "Constraint Quality" (CRF capped by a max bitrate). Because most 3GP source files are already low bitrate, aggressive recompression buys you very little space and hurts visible quality.
3. Set Resolution and Trim (Optional): Under Video Resolution choose "Keep original" to preserve the source frame size, pick a Preset Resolution (1080p, 720p, 480p, 360p, 240p, 144p), enter a custom Width × Height, lock by Width or Height with aspect ratio kept, or scale by Resolution Percentage. Under Trim, switch to "Time Range" to clip a start time and duration.
4. Convert and Download: Click "Convert" — files render to .divx in your browser session. No watermark, no sign-up, no email required.

Why Convert 3GP to DivX?

3GP is the mobile container the 3rd Generation Partnership Project (3GPP) defined in April 2003 for 3G UMTS handsets. It typically wraps H.263 or MPEG-4 Part 2 video at sub-CIF resolutions (176×144, 352×288) with AMR or AAC-LC audio — sized for slow 3G uplinks, not for TV. DivX, by contrast, is an MPEG-4 Part 2 codec tuned for higher bitrates and the family of "DivX Certified" set-top devices that started shipping in 2003 and ran into the early 2010s. Converting 3GP to DivX rewraps and re-encodes the video into a profile those players can actually decode.

• Watch rescued phone footage on a DivX-certified DVD player. Models like the Philips DVP642, DVP3140, and Pioneer/Sony equivalents from the mid-2000s play DivX off USB sticks and burned discs but reject 3GP outright — converting unlocks the only path to TV playback without a PC.
• Burn a viewable DVD-Video data disc. Many home-theater receivers and budget DVD players from 2004-2012 read DivX/Xvid files but ignore .3gp, so a re-encode is the difference between a playable archive disc and a coaster.
• Preserve old Nokia, Sony Ericsson, Motorola, and Samsung clips. Feature-phone recordings sit in family backups in the QCIF (176×144) or QVGA (320×240) range; rewrapping into a higher-bitrate MPEG-4 ASP stream means standalone hardware can decode them without re-buffering on every keyframe.
• Edit in legacy NLEs. Older Sony Vegas, Pinnacle Studio, and Windows Movie Maker installs accept .divx and .avi cleanly but choke on AMR-NB audio inside 3GP — converting bypasses the audio-codec error.
• Match an existing DivX archive. If your video library is already organized around DivX/Xvid (a common pre-H.264 personal archive layout), normalizing inbound 3GP keeps the collection's playback compatibility consistent.
• Recover audio that DivX containers actually expect. 3GP's AMR-NB/AMR-WB tracks aren't part of the DivX certification audio profile (which targets MP3 and AC3) — converting transcodes the audio to a track DivX-certified hardware can play.

3GP vs DivX — Format Comparison

DivX Quality Preset Quick Guide

Frequently Asked Questions

Is DivX the same codec as Xvid, and will my output play on a DivX-certified player?

DivX and Xvid are both MPEG-4 Part 2 ASP implementations, so the underlying bitstream is the same family. In practice, DivX-certified set-top players accept DivX-encoded files reliably and "play some (but not all) Xvid files" — Xvid can use advanced MPEG-4 features (global motion compensation, Qpel, multiple B-frames) that most certified players don't decode. The output from this tool targets the standard DivX profile, which is what those players are built around.

Will converting upscale my 176×144 phone video to 1080p?

No. Conversion changes the codec, not the source detail. If the original 3GP was recorded at QCIF (176×144) or QVGA (320×240), the DivX file will look the same — possibly cleaner if you avoid heavy recompression, but no extra detail will appear. Pick "Keep original" under Video Resolution unless you specifically need a larger frame for a fixed display.

Why does my 3GP audio not transfer cleanly?

3GP files commonly use AMR-NB (8 kHz, ~12.2 kbit/s) or AMR-WB audio — narrowband codecs designed for voice over 3G. DivX-certified hardware expects MP3 or AC3. The converter transcodes the audio track during the rewrap, which can introduce a small quality shift on speech-heavy clips but is required for set-top player compatibility.

Can I keep 3G2 files (CDMA recordings) too, or only 3GP?

Both. The tool's Accepted Files include .3gp and .3g2. 3G2 was defined by 3GPP2 in January 2004 for CDMA2000 networks (Verizon, Sprint, KDDI au, etc.) and uses the same video codecs as 3GP plus CDMA-specific audio (EVRC, QCELP). The output is a DivX file either way.

What's the difference between Constant Quality (CRF) and Constraint Quality?

Constant Quality (CRF) targets a perceptual quality level — lower CRF values mean higher quality and bigger files. Constraint Quality applies the same CRF target but caps the bitrate at a ceiling you set, so peak-motion scenes don't blow past what an older DivX-certified player can buffer. Use Constraint Quality when you're burning for hardware that stutters on high-bitrate spikes.

Should I convert to DivX or just to MP4 with H.264?

If the destination is a DivX-certified DVD player from 2003-2012, DivX is the right pick. For everything else — modern smart TVs, phones, browsers, computers — H.264 in MP4 is more universal. See 3GP to MP4 for the modern-compatibility path. DivX certification programs were largely succeeded by H.264 and HEVC support, and most 2015+ TVs ship with H.264 decoders standard.

Is the file size cap the same as Convertio's 100 MB limit?

xconvert processes files in your browser session rather than uploading to a server queue, so the practical cap is your device's available memory. For typical 3GP recordings (often under 50 MB even for long clips because of the low source bitrate) this is rarely a constraint.

Can I trim a long phone recording before converting?

Yes. Under Trim, switch from "Unchanged" to "Time Range" and enter a start time and duration. This cuts the output to that span without a separate trim step, which is useful when you only want a 30-second highlight from a longer phone capture.

What if I want a different MPEG-4 Part 2 codec or container?

For Xvid output (also MPEG-4 ASP), see 3GP to Xvid. For an AVI container around the same codec family, 3GP to AVI handles the wrapper change. To shrink without changing format, Compress 3GP keeps the source extension and just reduces bitrate.