Free Download
Free Download
Convert Videos to MP4
Convert MKV, MOV, AVI, WebM, FLV, RMVB, and more formats to MP4 for broader compatibility with phones, computers, TVs, video editors, and online platforms.
Learn MoreFree Online MP4 Converter
Convert MKV, MOV, AVI, WebM, VOB, and other video formats to MP4 online for free
630M+
Users Worldwide
1,000+
Formats Supported
23
Years of Innovation
- Convert MKV, MOV, AVI, WebM, VOB, and other formats to MP4
- Free online conversion with no registration or credits required
- For large files, batch conversion, 4K, and advanced controls, try the desktop app
Online MP4 Converter
Upload a video, choose MP4 settings, and convert it to MP4 directly in your browser
Uploaded Video
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Output Video
MP4 Video
Add a video to start MP4 conversion.
Converting
Preparing file...
Preparing MP4 conversion...
Convert Videos to MP4 for Easier Playback, Editing, and Sharing
Convert videos to MP4 for smoother playback, smaller file size, easier editing, and convenient online sharing
Choose the Right MP4 Codec
Choose H.264 for broad device compatibility or H.265/HEVC for more efficient compression on supported devices.
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Prepare MP4 Files for Your Next Task
Create MP4 files for cross-device playback, video editing, uploading, sharing, or device transfer.
Learn MoreOnline for Convenience Desktop for Control
Use the online MP4 converter for quick conversion, and turn to the desktop video converter for batch and large-file conversion and more advanced output controls.
Online MP4 Converter
Best for quick, single-file conversions without installing software.
Desktop MP4 Converter
Best for large videos, multiple files, local privacy, and advanced settings.
| Capability | Online | Desktop |
|---|---|---|
| Quick single-file conversion | ✓ | ✓ |
| Large-file conversion | Limited | ✓ |
| Batch conversion | Limited | ✓ |
| Codec, resolution, bitrate, and frame rate | Basic | Advanced |
| Private local processing | — | ✓ |
| GPU acceleration | — | ✓ |
| Fast Conversion mode | — | 130x |
| Editing Tools | — | ✓ |
| AI Tools | — | ✓ |
Convert Popular and Less-Compatible Video Formats to MP4
Choose a dedicated converter for MKV, MOV, AVI, WebM, VOB, TS, VOB, and other source formats
Convert to MP4 for the Way You Use Video
Create MP4 files that match the devices, apps, and platforms you use every day
For Phones and Tablets
Convert videos to MP4 with the desktop video converter, which offers device-oriented presets.
For TVs and Game Consoles
Create MP4 files for TVs, media players, Plex, NAS libraries, and broader home playback.
For Video Editing
Convert your video footage into an MP4 profile that is easier to import into common editing workflows.
Uploading and Sharing
Make videos easier to upload, send, store, and share across common online platforms.
How to Convert a Video to MP4 Online for Free
Convert a video to MP4 online in three steps
Upload a Video
Upload a video from your device to get started.
Choose MP4 Format
Select MP4, then keep the source settings or choose the video codec and quality.
Convert and Download
Start the conversion, then download the finished MP4 for playback, editing, or sharing.
Why Choose the Desktop MP4 Converter
Take advantage of batch conversion, advanced editing, hardware acceleration, and local processing in the desktop app
Batch ConversionConvert multiple videos in one organized workflow.
Large-file SupportConvert large video files locally without browser upload limits.
Advanced OutputAdjust both basic and advanced output settings.
GPU AccelerationSpeed up video conversions with hardware acceleration.
Local PrivacyProcess locally and keep your videos private.
4K WorkflowsHandle high-resolution sources more efficiently and smoothly.
Video Editing ToolsEdit your MP4 files with the trim, merge, crop, and AI tools.
Fast ConversionEnable Fast Conversion mode to speed conversion by up to 130x.
MP4 Converter FAQs
Learn about MP4 conversion, supported video formats, common fixes, and when to use the desktop converter
What is an MP4 converter?
An MP4 converter changes video files such as MKV, MOV, AVI, WebM, or VOB into the MP4 container. MP4 is widely supported, but playback compatibility also depends on the video and audio codecs encoded.
Can I convert videos to MP4 online for free?
Yes. The online MP4 converter lets you convert supported videos to MP4 in a desktop or mobile browser without installing software. No registration or credits are required. For large files, batch conversion, local processing, or advanced output settings, you can use the desktop converter.
What video formats can I convert to MP4?
The online MP4 converter supports MKV, MOV, AVI, WebM, WMV, TS, VOB, and other common video formats. Format support and file-size limits may differ between the online and desktop versions.
Can I convert a video to MP4 on my phone?
Yes. Open the online MP4 converter in your browser, upload a supported video, choose MP4, and download the converted file when processing is complete. No separate app is required.
Why isn't my converted MP4 playing?
MP4 is a container, so playback depends on the codecs stored inside the file. If the MP4 has audio but no video or has video but no audio, the device may not support its video or audio codec. Reconvert the file with H.264 video and AAC audio for broader compatibility, or download a dedicated media player, like PotPlayer (for Windows), Infuse (for Apple TV, iPhone, iPad, and Mac), or VLC media player.
Convert Videos to MP4 Your Way
Start online for a quick file or download Any Video Converter for larger, private, and more advanced MP4 conversion workflows