Convert Windows Media Audio (.wma) to 3GPP Multimedia (.3gp) online for free. Fast, secure audio conversion with no watermarks or registration.
Upload your .wma file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .3gp file when it's ready.
WMA (Windows Media Audio) is Microsoft's proprietary audio codec family, introduced in 1999 as part of the Windows Media framework. WMA Standard provides lossy compression competitive with MP3, while WMA Pro supports multichannel surround and WMA Lossless offers bit-perfect compression. 3GP is a lightweight multimedia container created by the 3rd Generation Partnership Project for mobile phones on 3G networks.
Converting WMA to 3GP re-encodes the audio into a mobile-friendly container using AMR or low-bitrate AAC codecs. This bridges the Windows Media ecosystem with legacy mobile infrastructure, enabling playback on older feature phones and compatibility with MMS messaging gateways.
WMA files are a Windows ecosystem format with no native support on most feature phones. Legacy Nokia, Samsung, and LG handsets expect 3GP for audio playback, and MMS gateways typically accept only 3GP, AMR, or WAV (which is too large for MMS). Converting WMA to 3GP makes your Windows-sourced audio accessible to these devices.
The conversion also achieves dramatic file size reduction. A WMA file at 128 kbps becomes even smaller when re-encoded to AMR-NB (12.2 kbps), suitable for mass storage of voice recordings or delivery through bandwidth-constrained mobile channels.
FFmpeg decodes the WMA stream (wmav1 or wmav2 codec) to PCM, then re-encodes to AMR-NB (8 kHz mono, 4.75-12.2 kbps), AMR-WB (16 kHz mono, 6.6-23.85 kbps), or AAC-LC within a 3GP container. The WMA decoder handles both WMA Standard and WMA Pro profiles. Since both source and target are lossy compressed formats, this is a transcode operation with cumulative quality loss. The output conforms to the 3GPP TS 26.244 container specification.
Converting between two lossy formats (WMA to AMR) introduces generation loss — the output quality is lower than either the original WMA or a direct WAV-to-AMR conversion. AMR-NB is narrowband (300-3400 Hz) and suitable only for speech. For the best quality within 3GP, use AAC-LC at 64 kbps if the target device supports it. Music content will sound heavily compressed regardless of settings.
| Device | WMA | 3GP |
|---|---|---|
| Windows PC | Native | Partial |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Native |
| Linux | Partial | Partial |
| Web Browser | No |
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Resolution: N/A
Bitrate: 256 kbps
AAC format required
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
WMA to 3GP conversion bridges Microsoft's audio ecosystem with legacy mobile infrastructure. Use AMR-WB or AAC within 3GP for the best achievable quality from a WMA source.
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| No |
| Fitur | WMA | 3GP |
|---|---|---|
| Nama Lengkap | Windows Media Audio | 3GPP Multimedia |
| Ekstensi | .wma | .3gp |
| Terbaik Untuk | Windows native | Mobile optimized |