MP4 to AVI
Free browser tool to turn MP4 videos into AVI format instantly - perfect for legacy players and editing apps.
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How to convert MP4 to AVI
Convert MP4 to AVI in three quick steps
1. Upload your MP4
Click “Upload” or drag an MP4 onto the page. Large HD or 4K files are processed securely in-browser.
2. Select AVI output
AVI is preset for broad compatibility. Adjust resolution or codec settings if needed, then press “Convert”.
3. Download the AVI
Conversion finishes in seconds. Save your new AVI file and play it on older TVs, DVRs or editing software.
One-click MP4 to AVI
Swap modern MP4 files for classic AVI format without installing any software. Perfect for ensuring compatibility with legacy TVs, DVD players, DVRs, and older video editing applications. Smaller learning curve, zero watermarks, unlimited conversions - everything you need for seamless format conversion.
Multi-format support
Need another format? Convert to MOV, FLV, WebM, WAV, FLAC, and dozens of other video and audio formats in the same intuitive interface. Free, fast, and completely ad-free - everything you need in one powerful online converter for all your media transformation needs.
Discover more free tools
Enhance your converted AVI videos with our complete editing suite. Resize, trim, add subtitles, or download social videos - all from one browser-based workspace.
Video Resizer
Resize any video for TikTok, Instagram or YouTube online: crop or fit perfectly with zero quality loss.
Add Emoji
Add vibrant emoji stickers to videos in-browser: choose size, position and timing to match every scene.
Trim Video
Cut beginning, middle or end of any clip online: trim precisely, remove unwanted parts, keep best moments.
Reverse Video
Play footage backward for social posts: upload, reverse instantly in one click, then download the edited file.
MP4 to MP3
Extract high-quality MP3 audio from MP4 movies online: fast conversion, no installs, zero loss in bitrate.
Add Stickers
Insert fun, colorful stickers on video frames: drag, resize, schedule appearance and boost viewer engagement.
YouTube Downloader
Download YouTube videos to your device in chosen format and resolution: quick, secure, no quality degradation.
Add GIF
Overlay animated GIFs on top of any video track: control size, placement and timing for dynamic visual effects.
Crop Video
Crop footage directly online to focus on key content: set custom frame, remove distractions, export instantly.
YouTube to MP3
Convert YouTube links to MP3 audio in seconds: keep music, podcasts or lectures offline with perfect fidelity.
TikTok Downloader
Save TikTok videos in HD without watermark: paste the link, download instantly for offline viewing or edits.
Twitter Downloader
Grab videos from Twitter posts in multiple qualities: paste URL, download fast and watch offline anytime.
YouTube to MP4
Get YouTube videos as MP4 files with selectable quality: copy URL, convert online, store for editing or sharing.
Instagram Downloader
Download Instagram videos, Reels, stories and IGTV in high definition: no login, no watermarks, free forever.
AVI to MP4
Convert legacy AVI files to modern MP4 format online: reduced size, broader compatibility, instant download.
MP4 to FLAC
Extract lossless FLAC audio from MP4 clips: preserve full quality for music archiving or professional editing.
WebM to MP4
Transform WebM videos to universal MP4 for smooth playback on any device: drag, convert and save quickly.
MP4 to WMA
Turn MP4 video into compact WMA audio files within your browser: efficient size, ideal for Windows players.
MP4 to DivX
Re-encode MP4 movies to high-compression DivX format: smaller files, good quality, ready for legacy devices.
MP4 to MOV
Change MP4 videos to Apple-friendly MOV format online: perfect for QuickTime or Final Cut workflows.
MP4 to M4A
Strip audio from MP4 and save as clean M4A tracks: great for iOS playlists and streaming with small file size.
MP4 to AVI
Convert MP4 clips to widely supported AVI containers: maintain quality while ensuring legacy device playback.
MP4 to WebM
Export MP4 content as lightweight WebM for web delivery: faster streaming and reduced bandwidth consumption.
MP4 to WMV
Switch MP4 videos to WMV format for smooth playback on Windows PCs and classic media players.
MP4 to MPEG
Repackage MP4 footage as standard MPEG files: optimize for broadcasting, DVDs or older hardware.
MP4 to MPG
Convert MP4 files to MPG quickly online: ensure compatibility with vintage devices and authoring software.
MP4 to WAV
Extract uncompressed WAV audio from MP4 video: ideal for editing, podcasts or high-quality sound archiving.
MP4 to FLV
Turn MP4 videos into lightweight FLV for legacy web players: faster loading without sacrificing clarity.
MP4 to M4V
Convert MP4 to DRM-ready M4V for effortless sync with iTunes, Apple TV and other iOS environments.
MP4 to MKV
Wrap MP4 streams in flexible MKV containers: add subtitles, multiple tracks and achieve better compression.
MP4 to GIF
Create looping GIF animations from MP4 snippets: select range, convert online, share on social platforms.
MP4 to WebP
Generate animated WebP images from MP4 clips: enjoy tiny file sizes and rapid page loading speeds.
MP3 to MP4
Combine MP3 audio with still imagery to form MP4 video: ideal for YouTube or social music sharing.
WAV to MP4
Encode WAV audio into MP4 video with a static cover: reduce size and improve compatibility for uploads.
GIF to MP4
Upgrade looping GIFs to smooth MP4 video: smaller files, better quality, compatible with all devices.
FAQ
Why convert MP4 to AVI?
AVI format is widely supported by legacy devices and older software that may not read modern MP4 containers. This includes older TVs, DVD players, DVRs, and classic video editing applications like older versions of Windows Movie Maker or Adobe Premiere. Converting to AVI ensures your videos will play on virtually any device or software, making it ideal for maximum compatibility across different platforms and generations of technology.
Will the AVI file be larger than the MP4?
Yes, AVI files are often larger than MP4 files because AVI typically uses less compression than modern MP4 codecs. The file size increase depends on the original MP4's compression level, but you can control the output size by adjusting the resolution or bitrate in the advanced settings before converting. Lowering these settings will reduce the file size while still maintaining good quality for your specific needs.
Does the converter keep audio in sync?
Yes, absolutely. Video and audio streams are carefully re-muxed during the conversion process to ensure perfect synchronization. This means you'll have perfect lip-sync, no audio delays, and no frame drops in the exported AVI file. The conversion process maintains the original timing relationships between video and audio tracks, ensuring your converted files play exactly as intended.
Is there a file size limit?
You can upload MP4 videos up to 2 GB in size. Larger files will take more time to process, but they follow the same secure conversion process. For very large files, we recommend ensuring a stable internet connection to avoid interruptions during upload and conversion. The processing time depends on file size and length, but most standard videos convert in just a few seconds.
Are my uploads secure?
Absolutely. Your privacy and security are our top priorities. All file transfers are encrypted using HTTPS connections to protect your data during transmission. Files are processed in volatile memory (RAM) and are automatically deleted from our servers within minutes after conversion completes. We never store, share, or access your videos beyond the conversion process, ensuring complete privacy and security for all your content.
Can I batch convert multiple MP4s?
Yes, you can convert multiple MP4 files one after another. After each download completes, simply click "Upload another file" and repeat the process. There are no daily limits, no account registration required, and no restrictions on the number of files you can convert. This makes it easy to convert entire video collections to AVI format for compatibility with legacy devices and software.