Video Format Converter

Convert video freely between various formats
Click to select or drag the video file here
Accepted formats: mp4, webm, mkv, avi, mov, flv, wmv, m4v, ts
Output Format i
Video Codec i
H.265 offers approximately 40% better compression than H.264, but browser playback compatibility is limited.
H.264 is the recommended default option
Other codecs are typically much slower in the browser and may have weaker playback compatibility. Only use them when you specifically need that format.
VP9 compression is approximately 45% better than H.264. Output is in WebM format, which may not be supported by some players.
H.264 is the recommended default option
Other codecs are typically much slower in the browser and may have weaker playback compatibility. Only use them when you specifically need that format.
AV1 offers the highest compression rate (approximately 50%), but encoding speed is significantly slower.
Audio Codec i
Audio Bitrate i
AVI, FLV, and WMV use legacy codec formats (video and audio codecs are automatically set to ensure compatibility).

Description

The first time you use this tool, you need to wait for FFmpeg.wasm to download and load.

This tool is built on FFmpeg.wasm, porting the industry-standard FFmpeg multimedia processing engine to the browser via WebAssembly technology. All video processing operations are completed on your local device without uploading to any server, ensuring the privacy and security of your video files.

Audio Bitrate: The amount of audio data processed or transmitted per unit of time (per second), usually measured in kbps (kilobits per second). It is the core parameter affecting audio quality and file size.