JPEG, WebP, AVIF, or PNG: which image format should you use?
Choose an image format by content, transparency, compatibility, and editing needs—not by a blanket smallest-file rule.
8 minute readUpdated August 9, 2026
Read guide Ziply Learn
Make better image-compression decisions
Original, practical guides for choosing formats, reviewing quality, protecting graphics, and understanding what browser-side processing really does.
Editorial library
Start with the job your image needs to do
These guides explain tradeoffs rather than promising one setting for every file. They are written and reviewed against Ziply’s current local-processing behavior.
PNG quantization: smaller graphics without sacrificing clean edges
Learn when an indexed palette, alpha preservation, and controlled dithering can reduce a PNG—and when lossless fallback is safer.
7 minute readUpdated August 9, 2026
Read guide How to choose an image quality setting
Use a repeatable visual review to balance file size against detail instead of treating the quality control as a percentage score.
7 minute readUpdated August 9, 2026
Read guide Browser image format support: test the encoder and the destination
Understand the difference between decoding, encoding, and displaying an image format, and verify capabilities in the browser doing the work.
6 minute readUpdated August 9, 2026
Read guide What private, browser-side image compression actually means
Follow the media path from browser File object to local Worker and download Blob, and understand the limits of a local-processing claim.
7 minute readUpdated August 9, 2026
Read guide Compressing screenshots, logos, and transparent graphics
Protect small text, hard edges, flat colors, and alpha boundaries when optimizing interface captures and brand assets.
7 minute readUpdated August 9, 2026
Read guide Editorial standard
Advice tied to a testable workflow
Ziply Learn separates format facts from recommendations, avoids invented compression benchmarks, and identifies when browser or destination testing is still required.
Advertising, when enabled, is manually placed only within this editorial library. It does not influence recommendations and never appears in the compressor document.