Image Compression Guide
Shrink JPG, PNG, and WebP without wrecking appearance — locally in your browser.
Why compression matters
Heavy images slow pages and email. Good compression balances size and sharpness.
Browser-side processing lets you preview results before download.
Practical settings
JPG: start around 80–90% for web; raise quality for print.
PNG: best for graphics and transparency — often larger than JPG.
WebP/AVIF: test levels on your actual display.
Common mistakes
Re-compressing the same JPG at lower quality each time.
Using PNG for large photos when transparency is not needed.
Frequently asked questions
Does compression always reduce quality?
Lossy compression does; lossless PNG may stay large. Match format to use case.
Can I compress multiple images at once?
Yes for small batches — limits depend on device RAM and the browser.