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PNG and JPG solve different problems, not interchangeable options. Here is exactly when transparency, screenshots, and editing workflows call for PNG, when photos and file size call for JPG, and what breaks when you pick wrong.

Compression is only one of four things that control LCP. Here is how fetchpriority, preload, never lazy-loading your LCP image, and correct dimensions actually move the metric, with the exact 700ms result from Google's own case study.

PNG files can be lossless-optimized for a modest 15 to 25% saving, or converted to WebP, AVIF, or JPG for far bigger reductions. Here is which method fits your situation and how to do each one for free in your browser.

A quality slider doesn't know what file size it will produce until after the fact. Here is how compressing to an exact KB target actually works, and how to pick the right target for your situation.

Learn how to extract HEX, RGB, and HSL colors from any image online. Create beautiful color palettes instantly using a free browser-based image color picker.

HEIC files from your iPhone will not open on Windows, Android, or most upload portals. Here is how to convert HEIC to JPG, PNG, WebP, AVIF, and PDF in your browser with no upload, no registration, and nothing installed.

AVIF stands for AV1 Image File Format, a still image format built on video compression technology. Here is what it actually is, how it compresses images so efficiently, what it can do that JPEG cannot, and why you keep seeing .avif files in 2026.

Amazon wants 1,600 to 2,000 pixels square with a pure white background. Shopify wants 2,048 by 2,048. Etsy wants a 4:3 landscape crop. Here are the exact specs for every major platform and how to build one workflow that covers all of them without reshooting anything.