Web
- RealFaviconGenerator - Favicon and metadata generator & checker
API
- Currency API - Exchange rates API with 150+ currencies and no rate limits
CSS
- Intro to CSS 3D transforms - by David DeSandro
- CSSmatic - Collection of CSS tools for gradient, border radius, noise texture and box shadow
- Easing functions - Collection of transitions and keyframes
- Box-shadow examples - See also buttons and checkboxes examples
Icons
- Animated SVG weather icons
- IcoMoon - Icons library
- IcoMonstr - Icons collections
- Fontello - Icon font generator
Illustrations
- The Noun Project - Icons and stock photos
- unDraw - Open-source illustrations
- ManyPixels - Royalty-free illustrations. See also their icons
- Open Doodles - Open-source illustrations
- Humaaans - Public domain illustrations
- Free SVG Illustrations
- SVG country flags
- SVG maps
Tools
Colors
- Color-Name - Search color name by hex code
Fonts
- Pair & Compare - Compare Google and system fonts
- Variable Fonts - Find and try variable fonts
Images
- ImageResizer - Image editing/converter and PDF tools
- PhotoPea - Online PhotoShop replacement
- PhotoRoom - Image editing tools. Background tools and an object remover
- Trimmy - Tools to remove black, white or transparent space from around images
Writing
- Hemingway Editor - Helps improve your writing
- DeepL Write - Helps improve your writing