These are online tools that I've used in the past - or bookmarked just in case!
Most are actually totally free, though a few may just have a nice free trial.
I update this list from time to time as tools fall in and out of favor.
| Tool | Purpose |
|---|---|
| 30 seconds of code | Huge collection of snippets in various programming languages |
| AI. Image Enlarger | Enlarge and enhance images with AI |
| answer | Open source knowledge base / Q&A community software |
| Animista | A collection of awesome copy/paste CSS animations |
| Awesome Node.js | A convenient list of many great Node.js modules and resources |
| Code Beautify | Tools for formatting and beautifying all kinds of code (with many links to other tools and utilities) |
| Color Hunt | Discover color palettes |
| CSV2JSON | Convert CSV to JSON |
| ChatGPT | AI language model chat bot |
| Dream Studio | AI image generation |
| fffuel | Many color tools and SVG generators for gradients, patterns, textures, shapes and backgrounds |
| Free Online Photo Editor | Online photo editing |
| Favicon Generator | Favicon generator/converter (with links to many other tools) |
| Google Dataset Search | Many free datasets |
| HTML Tidy | Correct / tidy up HTML code |
| HTML2Jade | Convert HTML to Jade/Pug |
| Iconmonstr | Free SVG icons |
| InfoByIP | Bulk IP lookup tool |
| Let's Debug | Let's Encrypt debugger |
| ngrok | Put localhost sites on the internet |
| npm trends | View and compare NPM package popularity over time |
| Online Tone Generator | Online tone generator |
| Photopea | Online photo editing |
| ray.so | Turn code snippets into beautiful, customizable images |
| RegExr | Build and test regular expressions |
| Regex101 | Build and test regular expressions |
| removebg | Remove image backgrounds. |
| Stable Diffusion | AI image generation |
| Simple Icons | Free SVG icons for popular brands |
| storyset | Free, customizable, animated illustrations (SVG and PNG). |
| TempMail | Temporary email |
| Terms of Service; Didn't Read (Tos;DR) | Get a bullet-point summary of many sites' Terms of Service |
| transform | Convert between many data types (SVG, HTML, JSON, JSX, YAML, etc.) |
| uiGradients | Many different ready-to-go CSS gradients |
