Initializing... drag & drop files here
Supports: 3GP, 3G2
A .3g2 clip is a CDMA-era mobile recording: the container 3GPP2 published in January 2004 for CDMA2000 phones (Verizon, Sprint, U.S. Cellular). A .wmv is Microsoft's Windows Media Video, an ASF file that goes back to 1999. This converter re-encodes one into the other. Be clear up front: both formats are legacy, and this is not a modernization — it is a lossy-to-lossy re-encode between two old formats, and WMV 2 is an older, less efficient codec than the H.264 a 3G2 may already carry. If you want a file that plays everywhere, the right target is 3G2 to MP4; pick WMV only when a specific Windows-Media workflow demands it.
| Property | Value |
|---|---|
| Defined by | 3GPP2 (3rd Generation Partnership Project 2) |
| Released | January 2004 |
| MIME type | video/3gpp2, audio/3gpp2 |
| Container base | ISO base media file format (ISO/IEC 14496-12, MPEG-4 Part 12) |
| Video codecs | H.263, MPEG-4 Part 2, H.264/AVC |
| Audio codecs | AMR-NB, AMR-WB, AAC, plus CDMA speech: EVRC, EVRC-B, QCELP (13K), SMV, VMR-WB |
| Typical resolution | 176×144 (QCIF), 320×240 (QVGA), 352×288 (CIF) |
| Built for | CDMA2000 camera phones — small, low-bitrate clips |
| Status in 2026 | Frozen legacy; CDMA networks retired (Verizon's sunset completed end of 2022) |
| Property | Value |
|---|---|
| Defined by | Microsoft (Windows Media) |
| Released | 1999 (Windows Media Video 7) |
| Container | Advanced Systems Format (ASF) |
| Video codec (this tool default) | WMV 2 — Windows Media Video 8, FourCC WMV2 |
| Other selectable video codec | WMV 1 — Windows Media Video 7, FourCC WMV1 |
| Audio codec (default) | WMA v2 (Windows Media Audio) |
| Not the same as | WMV 9, which Microsoft submitted to SMPTE and was approved March 2006 as SMPTE 421M (VC-1) |
| Native playback in 2026 | Windows Media Player on Windows; VLC elsewhere — thin support on phones and browsers |
| Best for | Legacy Windows-only / WMP / old PowerPoint workflows |
Both ends of this conversion are legacy. A 3G2 is a dead-CDMA-era phone clip; a WMV is a Windows-Media-era file. Neither is a good long-term home for footage in 2026, and converting between them recovers no quality — a small, low-resolution 3G2 stays small and low-resolution. The honest reasons to do it anyway:
.wmv..wmv clips natively without an external codec.For anything modern — playback on phones, browsers, smart TVs, or editing in Premiere Pro, DaVinci Resolve, or CapCut — convert to 3G2 to MP4 instead. MP4 with H.264 is the durable, universal pick, and the H.264 inside an MP4 is more efficient per bit than the WMV 2 codec this page outputs.
.3g2 clip onto the page, or click "Add Files" to browse. Batch upload is supported, and .3gp (the GSM cousin) is also accepted, so a folder of old phone recordings can be queued with the same settings..wmv ASF file. Under the Video Codec menu you can switch to WMV 1 if an older target requires it..wmv file. No sign-up, no watermark.For almost every modern use, choose MP4. Both 3G2 and WMV are legacy, but WMV's playback support outside Windows is patchy, and its default WMV 2 codec is older and less efficient than the H.264 inside an MP4. Convert to WMV only when a specific Windows-Media workflow needs it — an old Windows Media Player or Movie Maker project, a Windows-only application, or a legacy PowerPoint that embeds .wmv clips natively. For a file that plays everywhere, use 3G2 to MP4 instead.
No — and that is an honest limit, not a tool flaw. 3G2 recordings from CDMA camera phones are typically 176×144 (QCIF), 320×240 (QVGA), or 352×288 (CIF), so that detail simply is not in the source. Going 3G2 to WMV is a lossy-to-lossy re-encode that cannot add back detail the original already discarded, and WMV 2 is a less efficient codec than the H.264 the clip might otherwise use. A small low-res 3G2 stays small and low-res; choosing a larger resolution preset enlarges the frame but invents no new detail. Keep "Keep original" resolution for the most honest output.
The Video Codec defaults to WMV 2 — the FourCC for Windows Media Video 8 — and the Audio Codec to WMA v2 (Windows Media Audio), the standard pairing inside a .wmv file, which is itself an ASF (Advanced Systems Format) container. Under the Video Codec menu you can switch to WMV 1 (Windows Media Video 7) if an older target requires it. Both are distinct from WMV 9, which Microsoft submitted to SMPTE and which was approved in March 2006 as SMPTE 421M, better known as VC-1.
CDMA phones often recorded voice using EVRC, QCELP (13K), SMV, or VMR-WB — speech codecs 3GPP2 published for cellular calls — while some later clips use AMR or AAC. A WMV file normally carries Windows Media Audio, so whatever your source track is, it gets re-encoded to WMA v2 by default. That re-encode is lossy, so pick a generous preset to keep speech clean. If the converted clip plays but has no sound, the source most likely had no audio track or a CDMA speech stream that failed to decode — converting to 3G2 to MP4 with AAC audio is the more reliable path in that case.
Yes, that is expected. WMV is a Windows Media format with poor native support outside Windows — iOS, Android, and most browsers do not play it without VLC or a third-party app. In our testing, a 176×144 AMR-audio .3g2 clip converted at the "Very High" preset opened cleanly in Windows Media Player and in VLC on every desktop, but would not play in mobile Safari or Chrome. If you need playback on phones, browsers, or social uploads, convert to MP4 instead.
Legacy versions of Microsoft PowerPoint on Windows embed and play Windows Media (.wmv) clips natively, because both are Microsoft formats sharing the same Windows Media codecs, so a WMV drops in without prompting for an external codec. Newer PowerPoint (2013 and later) and the Mac versions handle MP4/H.264 directly, so for a current deck convert to 3G2 to MP4 instead.
The networks shut down, but the files survive on old SD cards, phone backups, and forwarded MMS clips. CDMA2000 carriers — Verizon, Sprint, U.S. Cellular — retired their 3G networks (Verizon's CDMA sunset completed at the end of 2022), so the handsets that recorded these .3g2 files no longer connect. Pulling the clips off old media and converting them is often the only way to keep that footage viewable on a modern machine.
Your file is uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after the conversion — no sign-up, no watermark, never shared or made public.