Convert MP4 to 3GP Online
The H.264/H.265 codecs inside are patent-encumbered, and editing requires full re-encoding. Converting to 3GP gives you a key advantage: extremely compact file sizes optimized for mobile networks — a 1-minute video can be under 1 mb. 3GP is best for recording and playing low-bandwidth video on legacy mobile phones and 2g/3g networks.
Why Convert MP4 to 3GP?
The H.264/H.265 codecs inside are patent-encumbered, and editing requires full re-encoding — converting to 3GP overcomes this by providing extremely compact file sizes optimized for mobile networks — a 1-minute video can be under 1 mb
3GP is the right choice when you need to: recovering video clips from old nokia, motorola, and samsung feature phones
Gain broader compatibility — 3GP works with Feature phones, older Android devices, VLC, FFmpeg; modern smartphones default to MP4 instead
Your MP4 files were created for streaming video content through html5 video players on websites, but now you need a format suited to different workflows
MP4 vs 3GP — Format Comparison
MPEG-4 Part 14 (.mp4)
3GPP Multimedia File (.3gp)
How to Convert MP4 to 3GP
Upload your MP4 file
Drag your .mp4 file onto the upload area or click to browse. We accept MP4 files up to 2 GB.
Choose 3GP as output format
Select .3gp (3GPP Multimedia File) from the format list. Adjust quality settings if needed — higher quality means larger file size.
Convert and download
Click Convert and wait for processing. Your 3GP file will be ready to download in seconds. The result is optimized for recording and playing low-bandwidth video on legacy mobile phones and 2g/3g networks.
Frequently Asked Questions
Does converting between MP4 and 3GP degrade quality?
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Each lossy re-encoding can introduce additional artifacts. For best results, start from the highest-quality source available. 3GP's advantage is: extremely compact file sizes optimized for mobile networks — a 1-minute video can be under 1 mb.
How large will my 3GP file be compared to the original MP4?
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MP4 files are typically 10 MB – 5 GB, while 3GP files are typically 500 KB – 50 MB. The actual size depends on content complexity and any quality settings you choose.
What software can open the converted 3GP file?
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3GP is compatible with: Feature phones, older Android devices, VLC, FFmpeg; modern smartphones default to MP4 instead.
What is the maximum file size I can convert?
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PureConverter accepts MP4 files up to 2 GB. Your files are processed securely and deleted from our servers after conversion.
What's the difference between MP4 and 3GP?
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MP4 (MPEG-4 Part 14) is best for streaming and sharing video online with the widest possible device and platform compatibility. 3GP (3GPP Multimedia File) is best for recording and playing low-bandwidth video on legacy mobile phones and 2g/3g networks. Key tradeoff: MP4's advantage is universal playback support — every browser, phone, smart tv, and streaming platform handles mp4 natively, while 3GP's advantage is extremely compact file sizes optimized for mobile networks — a 1-minute video can be under 1 mb.
Pro Tips for MP4 to 3GP Conversion
For the best 3GP quality, start with the highest-resolution MP4 source available — lossy compression works better with more data to analyze
Keep a backup of your original MP4 file — while our conversion is reliable, having the source is always recommended
3GP works especially well for: converting mms video messages to modern formats for archival
Did you know? 3GP was designed when phone screens were 176x144 pixels and video was recorded at 15 fps — a "high quality" 3GP video from 2005 has fewer pixels than a single modern app icon.
Ready to Convert?
Upload your MP4 file above and get your 3GP in seconds. Free, fast, and secure.