Optimizing Images for the Web
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.
HEIC to JPG: Why iPhone Photos Won't Open, and How to Convert Them
Why iPhone HEIC photos won't open on Windows or the web, how to convert them to JPG, and how to make your iPhone shoot JPG instead.
What EXIF Metadata Reveals About Your Photos (and How to Strip It)
Photos carry hidden EXIF data, including where they were taken. Learn what is in it, who can see it, and how re-saving an image removes it.
Resizing Images for the Web: Dimensions, Retina, and the DPI Myth
Why only pixel dimensions matter on screen, why 300 DPI for web is a myth, and how to size images for high-density displays.
SVG vs PNG: When to Use Vector or Raster
SVG is vector and scales forever; PNG is raster and fixed. Learn which fits logos, icons, photos, and screenshots, and when to convert.
Tools in this guide
Image Converter
Convert images between JPG, PNG and WebP in your browser, with a quality control for the lossy formats.
Image Compressor
Compress JPEG, PNG and WebP images to a smaller size in your browser.
HEIC to JPG
Convert Apple HEIC and HEIF photos to JPG, entirely in your browser. No upload, no app needed.
Image Resizer
Resize images to exact dimensions in your browser and export as PNG, JPEG or WebP. Your photos never leave your device.
SVG to PNG
Convert SVG vector graphics to PNG raster images at any size, entirely in your browser.