Convert between MP4, WebM, and AVI formats. Adjust quality settings and download the converted file instantly.
Drop a video file here or click to upload
MP4, WebM, MOV, AVI — max 200.0 MB
Convert videos between MP4, WebM, and AVI formats directly in your browser. No uploads, no servers — everything runs locally on your device.
About
Different platforms, devices, and editing apps expect different video formats. The Video Converter lets you switch between MP4, WebM, and AVI right in your browser — no software to install, no files uploaded to a server. Upload your video, choose the target format, adjust quality if you want, and download the result. The tool uses WebAssembly under the hood for fast local processing, and it preserves audio tracks in a compatible codec for the target container. If you need to compress the output afterward, the Video Compressor is just a click away.
Features
Quick format switching with quality control
Convert between MP4, WebM, and AVI — the most widely used video formats across web, desktop, and mobile.
Use the quality slider to choose between smaller files and higher fidelity. The default preserves quality close to the original.
Conversion runs on your device via WebAssembly. No upload queues, no server delays, no dependency on internet speed.
Audio tracks are re-encoded into a compatible codec for the target format. Quality is maintained at a high bitrate by default.
Play the converted video in the browser to verify format compatibility and quality before downloading.
Your video file never leaves your device. No data is transmitted to any server at any point.
video.tools.video-converter.content.features.6.description
video.tools.video-converter.content.features.7.description
video.tools.video-converter.content.features.8.description
video.tools.video-converter.content.features.9.description
Guide
Six steps to a different format
Upload a video file by clicking 'Choose File' or dragging it into the drop zone
Select the target format from the dropdown: MP4, WebM, or AVI
Optionally adjust the quality slider to balance file size and visual fidelity
Click 'Convert' to start processing
Preview the converted video in the built-in player
Click 'Download' to save the converted file to your device
video.tools.video-converter.content.howToUse.6
video.tools.video-converter.content.howToUse.7
video.tools.video-converter.content.howToUse.8
video.tools.video-converter.content.howToUse.9
FAQ
Common questions about video format conversion
Yes. The converter handles all combinations: MP4 to WebM, WebM to AVI, AVI to MP4, and any other pairing of the three supported formats.
Embedded subtitle tracks are preserved when both input and output formats support them. External subtitle files are not affected.
It depends on video length, resolution, and your hardware. A 2-minute 1080p video typically converts in 30–90 seconds.
Yes, if your device has enough memory and processing power. 4K takes longer but the tool imposes no resolution limit.
video.tools.video-converter.content.faq.4.answer
video.tools.video-converter.content.faq.5.answer
video.tools.video-converter.content.faq.6.answer
video.tools.video-converter.content.faq.7.answer
video.tools.video-converter.content.faq.8.answer
video.tools.video-converter.content.faq.9.answer
More Tools
Upload your video above, pick the format you need, and download the converted file in moments.
Video Compressor
Reduce video file size with adjustable quality settings
Video Trimmer
Cut the start and end of a video to keep only the part you need
Video Cropper
Crop a video to a specific region or aspect ratio
Video Merger
Combine multiple videos into a single file
Video to GIF
Convert video clips to animated GIF images
Screen Recorder
Record your screen directly in the browser