Xvid to MP4 Converter | Free Online Tool
Our free online converter transforms Xvid video files into modern MP4 format in seconds. Upload your .avi files encoded with the Xvid codec, and we handle the rest — no registration, no software installation, no waiting through queues.
The tool runs entirely in your browser with server-side processing for speed. Your original files stay private; we auto-delete converted files after 24 hours. Whether you're archiving old footage or preparing clips for social media, the output MP4 works across every device and platform.
We built this for people who need reliable conversion without the bloat of desktop apps. Drag and drop your Xvid files, click convert, and download broadcast-quality MP4 videos ready to share.
What makes our converter fast and reliable
Why convert Xvid to MP4
Xvid was the go-to codec for video compression in the early 2000s, widely used for ripping DVDs and sharing files on peer-to-peer networks. Most Xvid videos are stored in AVI containers, which modern devices and streaming platforms no longer prioritize.
MP4 has become the universal standard because it balances file size with quality and plays natively on smartphones, smart TVs, editing software, and every major social platform. When you convert Xvid to MP4, you’re future-proofing your video library — the H.264 codec inside MP4 containers delivers better compression per megabyte and broader compatibility than the decade-old Xvid format.
How the conversion process works
Our tool decodes the Xvid video stream from your AVI file, then re-encodes it using the H.264 codec wrapped in an MP4 container. The audio track — typically MP3 or AC3 in Xvid files — gets transcoded to AAC for better efficiency and device support.
Processing happens on our servers, not in your browser’s JavaScript engine, so even large files convert quickly. A typical 700 MB Xvid movie finishes in under two minutes. We preserve your original resolution, aspect ratio, and frame rate unless you choose custom output settings in the advanced panel.
Privacy and file handling
Uploaded files never touch third-party storage. Our conversion servers process your video, generate the MP4, and hold the output for 24 hours so you can download it at your convenience. After that window, both the source Xvid file and the converted MP4 are permanently deleted from our infrastructure.
We don’t log filenames, don’t scan content, and don’t require account creation. Your browser sends the file over HTTPS, the server converts it, and you pull the result back down — that’s the entire data flow. For users working with sensitive footage, this ephemeral approach keeps your material out of cloud archives.
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Common questions about Xvid to MP4 conversion
Our converter uses the H.264 codec at high-quality settings that preserve the visual detail of your source file. If the original Xvid video was encoded at low bitrate, the MP4 output will reflect that same baseline quality — conversion cannot restore detail that was never there. For most Xvid files encoded at standard settings, the MP4 result looks visually identical while often being smaller in file size due to H.264's better compression efficiency.
A 700 MB Xvid movie typically converts in one to two minutes, depending on server load and your upload speed. Larger files or batch jobs take proportionally longer. Processing happens on our servers rather than in your browser, so even older computers handle the workload without slowdown.
Yes. The tool works in mobile browsers on both iOS and Android. Upload files from your device's storage or cloud apps, and the converted MP4 downloads to your phone's file manager or photo library. Cellular data transfers may be slow for large videos, so Wi-Fi is recommended.
MP4 files produced by our converter use the H.264 video codec and AAC audio, which every modern device supports natively. iPhones, iPads, Apple TV, Roku, Fire TV, Xbox, PlayStation, and smart TVs all play these files without additional codecs or apps.
Both your original Xvid file and the converted MP4 are stored on our servers for 24 hours so you can download the result at your convenience. After that window, all files are permanently deleted. We do not log filenames or retain copies in backups.
We do not impose hard file size limits. Most Xvid movies range from 700 MB to 2 GB, and the tool handles those without issue. Extremely large files may take longer to upload and process, but the conversion will complete as long as your browser connection remains stable.
Yes. Drag all your Xvid files into the upload zone, and the converter will queue them for batch processing. Up to four files process in parallel depending on server availability. Finished MP4s appear in the download list as each job completes, so you can retrieve files incrementally.