OPUS to 3GP Converter

Convert OPUS to 3GP online, for free.



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Sets how the video is encoded. "Auto" suits most conversions. "Copy" reuses the video as-is, so it is fast and keeps full quality, but only when the output format supports it.
Choose how the video is resized: to a set resolution, or to a different aspect ratio, where the video's width is kept and the height is recalculated to match. Select "No change" to keep the original size.
Sets how many frames per second the output video has. Lowering it reduces file size but makes motion less smooth, and raising it above the source frame rate won't add smoothness. "No change" keeps the source frame rate.
Rotates the video clockwise by the angle you select. Choose "None" to leave it as-is.
Flips the video horizontally or vertically. "No change" leaves it as-is.
Select the best option for your subtitles: 'Upload' to add your own, or 'Copy' to replicate from the original file.
Choose a file Browse
Upload a .srt or .ass file.
Choose how subtitles are added. "Hard" burns them into the video permanently; "Soft" keeps them separate so viewers can turn them off. Default is Hard.
Sets how the audio is encoded. "Auto" suits most conversions. "Copy" reuses the audio as-is, so it is fast and keeps full quality, but only when the output format supports it.
100% represents the original volume. To double the volume, increase it to 200%. To reduce volume by half, select 50%
Fades the audio in at the start of the output.
Fades the audio out at the end of the output.
Specify the start position of trim (HH:MM:SS.MS). Leave at 00:00:00.00 to disable.
Specify the end position of trim (HH:MM:SS.MS). Leave at 00:00:00.00 to disable.
x
Enter crop rectangle's width and height in pixels (0 - 10000). Odd dimension numbers will be rounded down to the nearest even number.


How to Convert OPUS to 3GP?

  1. Click the “Choose Files” button to select your OPUS files.
  2. Click the “Convert to 3GP” button to start the conversion.
  3. When the status change to “Done” click the “Download 3GP” button

Easy to Use

Simply upload your OPUS files and click the convert button. You can also batch convert OPUS to 3GP format.

Best Quality

We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional, look for the icon).

Free & Secure

Our OPUS to 3GP Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically deleted after 8 hours.


Opus is an open, royalty-free lossy audio codec standardised by the IETF as RFC 6716. It was designed to cover everything from low-bitrate speech to full-quality stereo music in a single codec, and it consistently outperforms MP3 and AAC at the same bitrate. Opus powers voice and audio in WhatsApp, Discord, Zoom, YouTube, and every WebRTC browser call, which makes it one of the most widely used audio codecs in the world.

 

How to open an Opus file?

Every major web browser plays Opus natively, so dragging the file into a browser tab works. On the desktop, VLC media player and foobar2000 both support it out of the box.

 

Android plays Opus natively, and FFmpeg handles conversion from the command line. Some older hardware players, car stereos, and editing programs still do not recognise the format — in that case convert it with our Opus to MP3 tool. You can also convert the file with our OPUS to MP3 tool.

 

Developed by: Xiph.Org Foundation, Mozilla, and Skype

Initial Release: 2012


3GPP (3GP) is a multimedia container format designed for third generation (3G) universal mobile telecommunications system (UMTS) networks, which is a global system for mobile (GSM) standard. Since UMTS is a technology for mobile, the 3GP format allows mobile phones on UMTS networks to capture, save, deliver, and play media over high-speed wireless connections.

 

How to open a 3GP file?

The best application for opening 3GP is Apple QuickTime. And although 3GP is designed for mobile, the file format opens easily on most operating systems, including Linux, Mac, and Windows.

 

3GP is a flexible file format that supports captions and subtitles via 3GPP Timed Text. It does not support interactive menus, but it is compatible with free third-party tools that provide such support. One example is AutoGK. To improve the quality of the video while viewing off-mobile, convert the file to MP4.

 

Developed by: 3rd Generation Partnership Project (3GPP)

Initial release: 1997

Useful links:

https://en.wikipedia.org/wiki/3GP_and_3G2

https://www.3gpp.org/

FreeConvert.com can convert your files to these related formats:


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At FreeConvert, we go beyond just converting files—we protect them. Our robust security framework ensures that your data is always safe, whether you're converting an image, video, or document. With advanced encryption, secure data centers, and vigilant monitoring, we've covered every aspect of your data's safety.

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