📹 Compress Video
Shrink MP4 or MOV video files using H.264 encoding. Choose how aggressively to compress — from a light pass that keeps near-original quality to a heavy pass that minimises file size for sharing or uploading.
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Drop an MP4 or MOV video here
MP4 or MOV · max 100 MB
How it works
Upload an MP4 or MOV file and select a compression level. The video is re-encoded with the H.264 codec using a Constant Rate Factor (CRF) — a perceptual quality metric. Lower CRF = better quality; higher CRF = smaller file. The output is always an MP4 optimised for fast streaming.
Frequently asked questions
What is CRF and why does it matter?
CRF (Constant Rate Factor) controls the trade-off between quality and file size in H.264 encoding. A CRF of 0 is lossless; 51 is the worst quality. Values between 18–28 are common for web use. EasyKonvert maps Low → CRF 22, Medium → CRF 28, High → CRF 35.
How much smaller will my video be?
It depends heavily on the source. A video already encoded with H.264 at good quality will see less reduction than one filmed on an iPhone at 4K or in ProRes. Medium compression typically reduces file size by 30–70%.
Which level should I use?
Low is best when quality is critical (archiving, client delivery). Medium suits everyday sharing and social media. High is for when you need the file to be as small as possible and can accept visible artifacts.
Is my file stored on the server?
No. The compressed file is delivered directly to your browser. Share links store the file temporarily and delete it automatically when the link expires.