ChangeMyFile - Free Online File Converter

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Free 3GP to MP4 Converter Online

Fast, Free, Secure & Simple

How to Convert 3GP to MP4

Convert 3GP to MP4 for modern devices and web.

  1. Upload your 3GP file

    Click Upload and select your 3GP file from your device.

  2. Confirm MP4 as output

    The MP4 format is auto-selected for this page—confirm it (or choose if needed). MP4 is widely supported everywhere.

  3. Convert and download

    Click Convert Now and download your MP4 file. Preview the MP4 before sending. Note: Quality depends on the original 3GP.

💡 Example: Upgrade a 3GP phone video to MP4 for easier sharing.

Looking to convert 3GP to MP4 online for free? Change My File offers the best 3GP to MP4 converter that’s fast, reliable, and 100% free. Whether you’re working with old mobile videos or outdated file formats, you can easily upload your 3GP file and convert it to MP4 in seconds — no software installation needed.

Why Use Our Free 3GP to MP4 Converter?

  1. 100% Online & Free – No downloads or fees. Just upload and convert.
  2. High-Quality MP4 Output – Retains original video clarity after conversion.
  3. Fast Conversion Speed – Convert 3GP to MP4 in seconds.
  4. Mobile & Desktop Friendly – Works on all browsers and devices.
  5. Secure File Handling – Your videos are automatically deleted after conversion.

Convert 3GP to MP4 Online – No Limits, No Watermarks

MP4 is a universal video format compatible with almost all devices and platforms. If you're stuck with 3GP files from older phones or cameras, our tool helps you convert 3GP video to MP4 format online quickly and without quality loss.

Our online 3GP converter requires no signup and supports large file sizes, so you can convert as many videos as you like — completely free and without restrictions.

How to Convert 3GP to MP4?

It’s easy! Just follow these 3 steps:

  1. Upload Your 3GP File – Click the "Upload" button and choose your video.
  2. Automatic Conversion – The tool converts your 3GP to MP4 automatically.
  3. Download the MP4 – Save your converted MP4 file instantly.

No hidden steps. No learning curve.

Compatible With All Devices – iPhone, Android, Windows & Mac

Our free 3GP to MP4 converter online works on all devices and browsers — including Chrome, Safari, Firefox, and Edge. Whether you're converting videos from your Android phone or old mobile recordings, we make the process effortless and fast.

Is It Safe to Convert 3GP to MP4 on Change My File?

Absolutely. Your privacy is our priority. All files are deleted automatically after conversion, and we don’t store or access your content. This makes our online video converter secure and private for personal or professional use.

Why Choose Change My File as Your 3GP to MP4 Converter?

  1. Trusted by thousands of users daily
  2. Lightning-fast conversion times
  3. Clean, ad-free experience
  4. Best-in-class user interface
  5. Optimized for SEO and mobile usage

Convert Your 3GP Videos to MP4 Format Today – Free & Fast!

Say goodbye to unsupported 3GP files. With Change My File, you can convert your videos into the most widely accepted format — MP4 — in just a few clicks. No limits. No signups. Just fast, free video conversion at your fingertips.

File extension.mp4
File categoryVideo
Stands forMPEG-4 Video stream
DeveloperMoving Picture Experts Group
OverviewIt stores multimedia data. It is commonly used by manufacturers (those produce mobile products) as well as by Apple for audio, video and still images. It offers higher flexibility and is compatible with both audio and video files. The Format provided by these files i.e MPEG-4 is commonly used online for streaming the videos. Any Movie, video or Audio file can be easily downloaded or streamed online with this extension which can be free or chargeable as well, such as downloading from iTunes. The payment can be made using credit or debit cards. These files may also include audio books, photos, podcasts, songs, movies, not making them limited to just audios and videos. This format has become more common as they are being used in iPod and PlayStation Portable(PSP). Commonly portable media players are advertised as “MP4 players” although they are capable of playing other media format as well like ‘AMV format'.
Technical descriptionMPEG-4 files are officially named under extension .mp4 and this is the only official extension for MPEG-4 PART-14 formats. These files were introduced in 2001 under the standards of ISO/IEX 14496-1:2001. It runs on AAC encoding which restricts the users from copying the data of the files. The data embedding can be done on these files using any private stream. For instance, hint tracks to add the streaming information into the file. These files are similar to most of the modern containers containing data information which allows internet streaming.
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File extension.3gp
File categoryVideo
Stands forAlso termed as 3GPP file format
Developer3rd Generation Partnership Project(3GPP)
Overview3GP file format is compatible with all the 3G cell phones but it can also be used in some 2G and 4G phones with certain limitations. It is a multimedia container which enables various multiple streams to be embedded into a solo file. It is used both for video and audio files. This format gives an opportunity to the user to edit, modify and transfer files on mobile devices. This aforesaid facility is available online as well. Multimedia messaging service(MMS) and Multimedia Broadcast Multicast Services(MBMS) use this extension for all media files that needed to be sent using cellular or wireless connection. Furthermore, it takes less storage space thus prevents files to consume more disk capacity.
Technical descriptionThis extension is based on ISO Base Media file format, MPEG-4 Part 12. It is specially designed for GSM(Global System for Mobile Communications) based phones and tablets. It should be noted that there are few cellular phones that use .mp4 extension to store 3GP video files. Besides this, the smaller bandwidth requirements lead to an easy transmission of files over the Internet. In this type, video streams are stored as MPEG-4 Part-2, H.263 or MPEG-4 Part-10 (AVC/H.263). And AMR-NB, AMR-WB, AMR-WB+, AAC-LC, HE-AAC V1 or HE-AAC V2(This is enhanced AAC PLUS) are used for audio streams. There are various programs linked to this format like QuickTime player, VLC Media Player and Windows Media Player; etc. Apart from this, the Nintendo 3DS also use its technology to play YouTube videos. These files can also be coded and deflated with open-source software.
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