Images are usually the heaviest thing on a page, and a few decisions, the right format, the right size, sensible compression, decide whether they load fast or drag everything down. These guides cover choosing between JPEG, PNG, WebP and AVIF, compressing without visible loss, converting iPhone HEIC photos, stripping hidden EXIF location data, resizing properly (and the DPI myth), and SVG versus PNG. Each links a tool that does the job right in your browser, so your images never leave the page.
Image Formats for the Web: JPEG, PNG, WebP, and AVIF
What sets JPEG, PNG, WebP, and AVIF apart, how much smaller the modern formats are, and a simple rule for which one to use.
How to Compress Images Without Losing Quality
What image compression really trades away, where the quality sweet spot is, and the steps that shrink a file without a visible drop.
Tools in this guide
Convert images between JPG, PNG and WebP in your browser, with a quality control for the lossy formats.
Compress JPEG, PNG and WebP images to a smaller file size in your browser, with a quality you control.
Convert Apple HEIC and HEIF photos to JPG, entirely in your browser. No upload, no app needed.
Resize images to exact dimensions in your browser and export as PNG, JPEG or WebP. Your photos never leave your device.
Convert SVG vector graphics to PNG raster images at any size, entirely in your browser.