3GP to MP4 converter
Upload a 3GP, get a polished MP4 back in seconds. StandardsPDF handles the conversion in your browser so your files stay yours.
Convert 3GP to MP4
Drop your files to try StandardsPDF. This tool is available in the full workspace.
Keeps the video stream and audio track in sync
Lets you pick a quality preset to balance size and clarity
Batch several 3GP files in a single conversion
Downloads a ready-to-use MP4 you can share immediately
How it works
Convert 3GP to MP4 in 3 steps
Upload or drag in your 3GP file
Choose your output options if you need them
Download the finished MP4
Private by default
Files are encrypted in transit and deleted within 60 minutes.
Fast
Most jobs finish in under 10 seconds. No queueing.
No signup on free tier
5 documents per day, no credit card required.
FAQ
Frequently asked questions
How do I convert 3GP to MP4?+
Upload your 3GP file (or drag it onto the box above), wait a few seconds while StandardsPDF converts it in your browser, then download the MP4. There is nothing to install and no account required.
Is converting 3GP to MP4 free?+
Yes. 3GP to MP4 conversion is free on the StandardsPDF free tier – no watermark, no signup, and no credit card. A Pro tier lifts the file-size and daily limits if you need more.
Will the MP4 keep the quality of my 3GP?+
StandardsPDF aims for the highest fidelity the MP4 format allows, so your video comes through looking as close to the original as possible. Some format-specific details may adapt where MP4 works differently to 3GP.
Will the audio from my 3GP stay in sync in the MP4?+
Yes – when converting 3GP to MP4 the audio track is muxed back with the video so playback stays perfectly in sync.
Can I convert several 3GP files to MP4 at once?+
Yes – add multiple 3GP files and StandardsPDF processes them as a batch, returning a MP4 for each.
Can I convert 3GP to MP4 on my phone?+
Yes – the 3GP to MP4 converter is fully responsive and works in Safari, Chrome and other modern browsers on iOS, Android and iPadOS.
How long does a 3GP to MP4 conversion take?+
Most 3GP files convert to MP4 in a few seconds. Larger or higher-resolution files take a little longer, but there is never a queue on the free tier.
Is my 3GP file kept private during 3GP to MP4 conversion?+
Yes. Your 3GP is processed in an isolated worker, never shared, and permanently deleted from our servers within 60 minutes. Most 3GP to MP4 conversions happen right in your browser.