Convert 3GP to Opus Online Free
Extract the audio from your 3GP mobile video and encode it as Opus — the modern open codec that outperforms the dated AMR and AAC codecs in 3GP files at any bitrate.
ChangeThisFile extracts audio from your 3GP mobile video and encodes it as Opus using FFmpeg on our secure servers. Opus is far superior to the AMR and AAC codecs in 3GP files, delivering better quality at smaller sizes for streaming. Files are auto-deleted, free with no signup required.
Convert 3GP to Opus
Drop your 3GP file here to convert it instantly
Drag & drop your .3gp file here, or click to browse
Convert to Opus instantly
3GP vs Opus: Format Comparison
Key differences between the two formats
| Feature | 3GP | Opus |
|---|---|---|
| Type | Mobile video container (3GPP) | Open audio codec in OGG container |
| Developer | 3GPP standard | Xiph.Org / IETF RFC 6716 |
| Audio codec | AMR-NB, AMR-WB, or AAC-LC | Opus — modern, best-in-class open codec |
| File size | Very small (mobile-optimized) | Very small — even better compression than AMR |
| Quality | Low to medium (AMR is voice-only quality) | Excellent at low bitrates — speech and music |
| License | 3GPP (patent-encumbered codecs) | Open-source, royalty-free |
| Use case | Old mobile phone recordings | WebRTC, Discord, streaming, modern web audio |
When to Convert
Common scenarios where this conversion is useful
Convert 3GP phone audio for Discord bot playback
Discord uses Opus natively for voice audio. Converting 3GP mobile recordings to Opus gives you a file ready for Discord bot playback without real-time transcoding — a natural upgrade from the dated AMR codec in 3GP.
Create compact web audio from old mobile phone recordings
Opus produces very small files at excellent quality — even smaller than AMR at comparable quality. Convert 3GP audio to Opus for efficient web delivery of personal or archival mobile recordings.
Preserve 3GP voice recordings in a modern open format
Opus is actively developed and royalty-free — a future-proof format for preserving old mobile voice recordings. Converting 3GP to Opus ensures long-term access without depending on 3GPP codec availability.
Prepare 3GP mobile audio for WebRTC applications
WebRTC uses Opus for audio. Converting 3GP recordings to Opus allows them to be injected into WebRTC pipelines or browser-based communication tools without codec conversion overhead.
Modernize old AMR voice recordings for streaming
AMR-NB from 3GP is narrow-band voice audio with very limited quality. Re-encoding to Opus at a reasonable bitrate makes the recording more broadly playable in streaming apps and modern media players.
How to Convert 3GP to Opus
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1
Upload your 3GP file
Drag and drop your .3gp file onto the converter or click to browse and select it. Files up to 500MB are supported.
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2
Server-side Opus encoding
Your 3GP file is uploaded over HTTPS and FFmpeg extracts and decodes the audio (AMR or AAC-LC), encoding it as Opus in an OGG container. The video stream is discarded. Processing completes in seconds.
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3
Download your Opus file
Click Download to save the .opus file. Both the original 3GP and Opus output are automatically deleted from our servers after download.
Frequently Asked Questions
AMR-NB is a narrow-band voice codec at 8 kHz — useful for mobile calls but poor for music and general audio. Opus supports full-band audio up to 48 kHz and outperforms AMR at equivalent bitrates for both speech and music content.
Re-encoding cannot add quality that was never captured. If the source 3GP used AMR-NB (8 kHz narrow-band), the Opus output will have the same limited quality. Opus simply stores it more efficiently. AMR-WB (16 kHz wide-band) sources will sound notably better.
Opus files use the .opus extension per RFC 7845. The audio is stored in an OGG container. Some players also accept Opus files with the .ogg extension.
Yes. Chrome, Firefox, Edge, and Opera support Opus natively. Safari added Opus support in version 16. For older Safari compatibility, AAC or MP3 fallbacks are needed.
FFmpeg encodes Opus at a high variable bitrate by default, typically 128 kbps. For voice-quality source material (AMR from 3GP), this is much higher than needed but ensures maximum possible quality from the source.
Yes. Discord voice channels use Opus natively. discord.js and discord.py both support native Opus playback in voice channels without real-time re-encoding.
Yes. ChangeThisFile is completely free. No signup, no limits, and no fees. Opus is also royalty-free for any use.
Yes. Android 5.0 (Lollipop) and later support Opus natively. VLC also supports Opus on all Android versions.
Extremely fast. 3GP files are tiny (mobile-optimized) and Opus encoding is efficient. Most 3GP files convert in under 3 seconds.
Yes. All uploads are HTTPS-encrypted and files are deleted from our servers immediately after conversion. We never retain or access your content.
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