3GP to MP3 Converter

How to Convert 3GP to MP3 Online

1. Upload Your 3GP File: Drag and drop or click "Add Files" to select .3gp or .3g2 mobile videos. Batch is supported, so a folder full of old phone clips can be processed in one job.
2. Pick Quality Preset or Bitrate: The default Quality Preset is "Highest". For more control, switch to Constant Bitrate (8–384 kbps; 128 kbps default), Variable Bitrate (45k–85k low through 220k–260k high), Custom Bitrate (any value in bps/Kbps/Mbps), or Specific File Size to hit a target like 4 MB or 8 MB.
3. Set Audio Channel and Audio Sample Rate (Optional): Keep original, force Mono (smaller files for speech), or force Stereo. Sample rate options are 8000, 12000, 16000, 24000, 44100, or 48000 Hz — keeping the source rate (often 8000 Hz for AMR) avoids unnecessary upsampling.
4. Trim and Convert (Optional): Use the Trim panel to set a start time and duration in seconds or HH:MM:SS.sss to extract a single clip. Click Convert. Files process in your browser session — no sign-up, no watermark.

Why Convert 3GP to MP3?

3GP is the multimedia container the 3rd Generation Partnership Project published in 2003 to carry video and audio over GSM and UMTS cellular networks. It's based on the MPEG-4 Part 12 base media format and was designed for tiny bandwidth budgets — most 3GP audio is AMR-NB at 4.75–12.2 kbps with an 8 kHz sample rate, intentionally narrowband for speech. Converting to MP3 strips the video track and re-encodes the audio so it plays on any device that can read MP3 (which is essentially everything since the patents expired in the US on April 16, 2017).

• Salvage voice memos and voicemail from feature phones — Pre-iPhone Nokia, Samsung SGH, Motorola RAZR and BlackBerry models recorded memos as .3gp or .amr inside a 3GP container. MP3 lets you play them in any modern app or upload them to a service like Otter.ai for transcription.
• Extract music or interview audio from old phone videos — A camcorder clip of a concert, lecture, or street performance shot on a 3G-era phone is often the only surviving copy. MP3 keeps the audio long after the video container becomes unplayable on modern stacks.
• Build a ringtone library — Many Android devices used 3GP as the default ringtone format through Android 4.x. Converting to 192–320 kbps MP3 makes the same tones work on iPhone (via GarageBand → .m4r), older car stereos, and Bluetooth speakers.
• Archive call recordings from regulated workflows — Some legacy enterprise call-recording systems (early Cisco, Avaya, and Asterisk deployments) wrote AMR-in-3GP to save disk. MP3 conversion at 64–96 kbps mono keeps the files compact while making them indexable by modern compliance tools.
• Feed audio into editing software — DAWs like Audacity, Adobe Audition, and Logic Pro accept MP3 directly; many do not import AMR-NB without an FFmpeg plugin. Converting first removes the friction.
• Universal playback — MP3 is supported in Chrome, Firefox, Edge, Safari 3.1+, every iOS and Android version, and virtually every car head unit and smart speaker shipped in the last 25 years. 3GP playback outside Android is far less reliable.

3GP vs MP3 — Format Comparison

MP3 Bitrate Quick Guide for Voice and Music

Frequently Asked Questions

Does this converter accept .3g2 files from CDMA phones too?

Yes. The accepted extensions list includes both .3gp (3GPP, GSM/UMTS) and .3g2 (3GPP2, CDMA2000 — Verizon, Sprint, and US Cellular feature phones). 3G2 was released in January 2004 and shares the same MPEG-4 Part 12 base, so it's handled by the same demuxer pipeline, but it omits HE-AAC v2 and AMR-WB+ and adds the EVRC and VMR-WB voice codecs from the CDMA world.

What audio codec is actually inside my 3GP file, and does it matter?

3GP commonly carries AMR-NB (4.75–12.2 kbps, 8 kHz, narrowband 200–3,400 Hz), AMR-WB (up to 23.85 kbps, 16 kHz), AAC-LC, HE-AAC v1, or HE-AAC v2. It matters because the source is your quality ceiling — an AMR-NB voicemail at 7.4 kbps cannot be made to sound like a CD by encoding to 320 kbps MP3. Pick an MP3 bitrate appropriate to the source rather than always defaulting to 320 kbps.

Why does my converted MP3 sound muffled or telephone-like?

That's almost certainly an AMR-NB source. AMR-NB only encodes 200 Hz to 3,400 Hz — the same frequency range as a landline call — because it was standardized for GSM telephony in October 1999. There's no way to recover frequencies that were never captured. If the original recording was made on a newer phone with AMR-WB or AAC, those formats preserve more high frequencies and will sound noticeably better.

What bitrate should I choose for a voice recording?

For an AMR-NB source (most pre-2010 phone recordings), 64 kbps mono MP3 is plenty. For AMR-WB or AAC speech sources, 96–128 kbps mono is comfortable. Going higher than the source bitrate doesn't add audio information — it just enlarges the file. The Quality Preset "Medium" (around 128 kbps) is a safe default if you don't know what's inside.

Can I trim the 3GP first instead of converting the whole file?

Yes. Use the Trim panel in step 4 to set a start time and duration in HH:MM:SS.sss. This is useful when the 3GP contains, say, a 20-minute lecture and you only want a 90-second quote. The trim happens during conversion in a single pass — no need to convert first and edit later. For more complex multi-segment editing, convert to MP3 first and then use Audio Cutter.

Will my MP3 play in iTunes, Apple Music, the iPhone Voice Memos app, and CarPlay?

Yes. MP3 has been a first-class format in iTunes since 2001 and on iOS since the original iPhone in 2007. Files at 32–48 kHz sample rates and 32–320 kbps play everywhere. The iPhone Voice Memos app records in M4A (AAC) by default but accepts MP3 import via the Files app. CarPlay also reads MP3 from connected USB drives.

Can I batch-convert a whole folder of old phone clips at once?

Yes. Drop multiple .3gp / .3g2 files onto the upload area; each file is converted in parallel and downloaded individually or as a single ZIP at the end. This is the fastest way to process a backup folder pulled from an old SD card or a phone backup zip.

Should I convert to MP3 or extract to AAC / WAV instead?

Choose based on the source and the destination. If the 3GP contains AAC-LC and you're sending it to a modern app, converting to AAC keeps the file in its native codec without a transcode generation loss — try 3GP to MP4 (which keeps AAC) or convert AAC-to-MP3 only when MP3 is required. If you need uncompressed audio for editing, 3GP to WAV writes PCM. MP3 is the right pick for universal playback and small file sizes.

Does conversion happen on your servers, and how long are files kept?

Files upload to xconvert's servers for conversion, then are auto-deleted shortly after. There's no account requirement, no watermark, and no email gating. If you need to compress the resulting MP3 further (for email attachments or upload caps), Compress MP3 targets a specific output size.