Useful and awesome online tools that I often use. No download, no signup required. All of these tools are perfect for developers looking for click and use solutions—simply access them online and start working right away.
- ChatGPT - Dialogue optimized model
- GitIngest - AI-powered tool to query and analyze your Git repositories for insights and understanding.
- NotebookLM - AI-powered tool from Google for creating structured notes and assisting with research.
- Color Designer - Several useful tools including conversion between color models, color palette from image, and a visually appealing gradient generator
- Colors stacks - A color palette generator for design systems
- Kigen Color - Color palette generator and design tool
- Tailwind CSS Color Generator - Tool for generating and customizing Tailwind color palettes; includes paid features
- Beautiful CSS box-shadow examples - Box shadow examples to copy
- Clippy - A tool for creating and copying custom CSS shapes using
clip-path. - CSS Loaders - Pre-made CSS loaders that you can copy and customize for your projects.
- Fancy Border Radius - Interactive tool for creating complex border-radius shapes with CSS.
- Neumorphism.io - Generate and copy CSS for neumorphic designs.
- CSV to JSON - Transform CSV content to JSON arrays
- DiffChecker - Compare two different files line by line
- JSON Crack - Visualize your JSON data instantly into graphs
- JSON to CSV - Transform JSON data to CSV file
- JSON to TypeScript - Instantly generate TypeScript interfaces from JSON.
- JWT.io - JSON Web Token (JWT) Debugger
- Mr. Data Converter - Convert spreadsheet data into JSON, XML, SQL and more
- QuickChart - API for generating charts and visualizations via URL
- dbdiagram.io - Draw Entity-Relationship Diagrams, Painlessly
- Excalidraw - Create sketch hand-drawn-like diagrams
- FossFLOW - Create isometric diagrams and illustrations in the browser; an open-source isometric diagramming tool
- GitDiagram - Generate visual diagrams to represent Git branches and commit history.
- Markmap - Build interactive mindmaps using markdown
- Mermaid live editor - Create and share diagrams using markdown language
- Mind Meister - Tools for easily create mind maps
- Advanced Bash-Scripting Guide - An in-depth exploration of the art of shell scripting
- Easing Functions Cheat Sheet - Explanation and demonstrations of numerous easing functions
- Carbon - Create beautiful images of your source code for sharing
- Cleanup Pictures - Remove unwanted objects from photos
- favicon.io - Create favicons using text, images or emojis
- Image Resizer - Resize images online without loss of quality
- Remove.bg - Remove image backgrounds automatically
- Squish - Compress and convert images to AVIF, JPEG, JPEG XL, PNG, or WebP formats, powered by Squoosh
- SVGOMG - Optimize and minify SVG files easily with a user-friendly interface
- SVG Optimizer - Minify svg files
- SVG to PNG - Converts svg files to png
- SVG Viewer - SVG to png, react, data uri and more
- Tiny png - Minify jpg, png and webp images
- AutoRegex - Convert from English to RegEx with Natural Language Processing
- Debuggex - Visual tool for building and debugging regular expressions
- Regex101 - Build, test and debug regular expressions
- Regexper - Visualize regular expressions
- Regexr - Create and test regular expressions (alternative to regex101)
- Google Colab - Run Python snippets online
- Jasmine template for Codepen - Template for using Jasmine on codepen
- PHP CLI - Compile and test PHP code
- Prettier Playground - Online tool for automatic code formatting
- Typescript playground - Typescript online REPL
- asciinema - Record and share terminal sessions
- Bulk Redirect Checker Tool - Check multiple redirects
- LinkedIn Post Checker - Check metadata for your page
- Rich Results - Check your structured data
- Convertio - File conversion, including CSV, JSON, XML, and more
- Emojipedia - Emojis list for copy and paste
- markdown-to-ast (textlint) - Convert Markdown into an AST (Abstract Syntax Tree); useful for programmatic analysis, validation, or transformation of Markdown documents.
- Remove duplicated lines - Remove duplicated lines and sort text lines
- CORS Test - Check CORS support on APIs and servers instantly.
- Mocky Designer - Create and customize mock APIs instantly, with options to design and share JSON responses.
- ReqBin - Online tool for testing HTTP requests, including GET, POST, PUT, and DELETE, directly in the browser.