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Convert videos between MP4, WebM, AVI, and MKV formats.
Drag & drop a video file here
or click to browse · MP4, WebM, MOV, AVI, MKV (max 2 GB)
How It Works
- Upload your video: Click to select or drag and drop a video file in any common format (MP4, WebM, AVI, MOV, MKV).
- Choose output format: Select the target format and optionally adjust quality settings, resolution, and codec.
- Convert and download: Click Convert and download the output video file when processing is complete.
Why Use Video Converter?
Video formats fragment across platforms — MP4 plays everywhere, WebM is optimized for web, MOV is the Mac standard, and MKV is common for high-quality video. When a video won't play on a device or upload to a platform, converting it to the right format solves the problem instantly. This browser-based converter handles the most common format conversions without requiring software installation or file uploads to external servers.
Features
- Multiple formats: Convert between MP4, WebM, OGG, and other web-compatible video formats.
- Quality control: Adjust output bitrate and quality settings to balance file size and video quality.
- Resolution options: Downscale to standard resolutions (1080p, 720p, 480p, 360p) to reduce file size.
- Audio preservation: Audio tracks are retained in the converted output by default.
- Browser-based: Video processing happens locally using WebAssembly — your videos never leave your device.
Frequently Asked Questions
What video formats are supported?
The tool supports conversion between MP4 (H.264/AAC), WebM (VP8/VP9/Opus), OGG (Theora/Vorbis), and other web-compatible formats. Support for AVI, MOV, and MKV depends on browser capabilities via the WebCodecs API.
Why is conversion slow for large videos?
Video conversion is computationally intensive. Large files (above 500 MB) or high-resolution video (4K) may take several minutes. The conversion runs in your browser using WebAssembly, so speed depends on your device's CPU.
Will I lose quality when converting?
Any conversion between lossy codecs (like H.264 to VP9) involves some generation loss. Converting at high bitrate settings minimizes visible quality loss. For lossless archival, use the highest quality setting or a lossless codec if available.