Is this video compressor free?
Yes. You can compress videos for free without signup, software installation, paid APIs, or watermarks.
Video Compressor Online
Compress video online with a free MP4 compressor built for large video files. Upload a video, review its size, duration, and codec, then reduce video size with presets, custom quality, target-size, codec, and resize controls. Resolution stays unchanged unless you select resizing, and the upload limit remains 1 GB.
Reduce video size without removing your options
Use this video compressor when an MP4, MOV, WebM, or MKV file is too large for email, messaging apps, social uploads, websites, or storage. You can compress video online with a fast preset, choose a custom CRF quality value, set an approximate target file size, switch between H.264 and H.265 MP4 output, or resize only when you decide it makes sense.
Convertr does not force lower resolution just to reduce server load. Full HD and larger source videos remain supported when the upload is within the 1 GB limit, and the original resolution is kept by default.
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Can I use this as an MP4 compressor?
Yes. Upload an MP4 file, choose a smaller-file preset or custom target size, and download a compressed MP4 output. MOV, WebM, MKV, AVI, M4V, FLV, WMV, MPEG, and 3GP uploads are also supported.
Does video compression change quality?
Compression can reduce quality when you choose a smaller file preset, target size, resize option, or lower CRF quality. Convertr keeps the original resolution by default unless you select resizing.
Can I choose a target file size?
Yes, custom mode can aim for an approximate target size when the requested size is technically feasible for the video duration. Exact output size is not guaranteed.
What is the maximum upload size?
The upload limit is 1 GB, matching the rest of Convertr. Full-resolution videos are supported when the file is within that limit.