All Image Tools
All Image Tools brings related tools together in a clear workflow. Core features are free and require no account.
● Private and mostly local in your browserAspect Ratio Calculator
Reduce width and height to their common aspect ratio and calculate the proportional height for a new width. Presets cover common image and video formats.
Image to Base64
Create a Base64 data URL from a local image for CSS, HTML or testing. File type, size and resulting text length remain visible.
Image Compressor
Reduce image dimensions and export as WebP, JPEG or PNG. Preview, new file size and percentage saved make the quality trade-off visible.
Image Resizer
Change image width and height up to 10,000 pixels. An aspect lock preserves the original ratio while format and quality remain selectable.
Image Cropper
Crop a square area with selectable size, position and zoom. The preview shows the exact composition before local export.
Favicon Generator
Create square PNG icons at 512, 192 or 32 pixels from an image. Outputs suit app manifests, home screens and browser tabs.
Image Color Palette
Create colors and CSS visually.
Color Code Converter
Create colors and CSS visually.
Contrast Checker
Create colors and CSS visually.
Recommended workflow
Crop the composition first, set the target dimensions next, then compress into the final format.
Frequently asked questions
Are my contents stored?+
Local tools do not send files or inputs to Tools Universe; personal settings remain in the browser.
Can I use the tools on mobile?+
Yes. Controls support current browsers on iPhone, Android, tablets and desktop computers.