How-to guides · Updated 14 Nov 2026

How to compress video without losing quality

Short answer

Compress video by lowering the bitrate in small steps, keeping resolution appropriate for the platform, using an efficient codec such as H.264 or newer and trimming dead air. Compare the result at full size before uploading. Some quality loss is unavoidable, so aim for the smallest file that still looks clean.

What are the safe steps?

Trim unused footage.
Export at the platform's resolution, not higher.
Lower bitrate gradually.
Watch the result at full size.
Stop when artefacts appear.

How do you plan size?

Use the file size calculator to estimate size from bitrate. Short reels such as Glass renders stay small.

What are warning signs?

Blocky areas, banding and smeared motion.

Frequently asked questions

Does compression always lose quality?

Lossy compression does, but it can be hard to notice.

What codec should I use?

H.264 is widely supported.

What resolution should I export?

Match the platform's recommended resolution instead of exporting larger than needed, because extra pixels only increase file size.

Should I compress twice?

Avoid repeated compression.

What is bitrate?

Data per second of video.

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