All tools
Grouped by what they do to your image. Each one runs on your device and explains its method below the workspace.
Optimise
Transform
- Image ResizerResize images to exact pixel sizes or to ecommerce and social presets with fit, fill, pad or stretch modes. Local, canvas-based, no uploads.
- Image CropperCrop images with a draggable box, aspect-ratio locks for 1:1, 4:5, 16:9 and 3:2, keyboard nudging and pixel-exact export.
- Format ConverterConvert images between PNG, JPG and WebP in your browser, with a background colour of your choice for transparent areas when saving JPG.
Colour
- Colour Palette ExtractorPull 3 to 12 dominant colours from a photo with median cut and k-means, copy HEX, RGB or HSL, export CSS variables or JSON and check contrast.
- Colour Contrast CheckerCheck text and background colours against WCAG 2.x contrast requirements for AA and AAA, normal and large text, with a live preview.
Utility
- Aspect Ratio CalculatorSolve a missing width or height, simplify any size to its ratio with the GCD, see the decimal ratio and the closest common ratio.
- Favicon & Base64 GeneratorTurn an image into a Base64 data URI, or generate favicons at 16, 32, 48, 180, 192 and 512 px with an .ico file, manifest and HTML tags.