Video Compressor - Free Online | FunToolX

Upload video files and select compression modes: fast compression (automatically optimize parameters), custom compression (manually adjust bit rate, resolution, frame rate, encoding format). The tool displays the original file size and the expected compressed size. You can set the target file size (such as compress it to less than 10MB), and the tool automatically calculates the appropriate parameters.

Principles of video compression: Reduce the bit rate to reduce the amount of data per second, reduce the resolution to reduce the number of pixels, reduce the frame rate to reduce the frequency of picture updates, and use a more efficient encoding format (for example, H.265 has a 50% higher compression rate than H.264). Compression is detrimental, but the loss of image quality is difficult to detect with the naked eye under reasonable parameters.

Suitable for reducing video files for easy sharing (such as email attachments, WeChat transmission), saving storage space, or accelerating upload speed. Support batch compression of multiple videos. Processing is completed locally in the browser and no files are uploaded. The output format can be MP4, WebM, etc.

Video compression tool reduces the size of video files by adjusting parameters such as bit rate, resolution, frame rate, and encoding format to maintain acceptable picture quality.