Image compression guide

Choose quality, target and format honestly

Practical notes about browser codecs, byte budgets, JPEG mattes and WebP transparency.

Quality6 min read

Image quality versus file size

Understand what a browser quality number controls and what it cannot promise.

Target size6 min read

Read a target as a maximum budget and understand why it may not be reachable.

Formats6 min read

Choose an output format by transparency and destination support, not file size alone.