Video Converter - Free Online | FunToolX
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Video Converter
Convert a video to MP4 / WebM / MOV / AVI / MKV with adjustable resolution and quality.
About this tool
Video Converter is a free online tool. Convert videos between MP4, WebM, MOV, AVI, MKV and more.
Upload video files, select the target format (MP4, MOV, AVI, MKV, WebM, GIF, etc.), and you can adjust video parameters: resolution (1080p, 720p, 4K, etc.), frame rate (24fps, 30fps, 60fps), video bit rate, audio bit rate, encoding format (H.264, H.265, VP9, etc.).
Video conversion uses FFmpeg.wasm (browser-side FFmpeg is compiled into WebAssembly) for decoding and re-encoding. Different formats use different codec and container formats. MP4 is the most common, WebM is suitable for web pages, and MKV supports multiple audio tracks and subtitles.
Ideal for resolving video compatibility issues (such as some players do not support specific formats), reducing file size, or preparing videos for specific platforms (such as social media requiring MP4). Processing is done locally on the browser to protect privacy. Large files take a long time to process, depending on device performance.
Online video format conversion tool supports conversion of MP4, MOV, AVI, MKV, WebM and other formats, and can adjust resolution, frame rate, bit rate and other parameters.