Stop Tab-Switching.
Every Dev Tool in One Place.
JWT decoder, JSON formatter, regex tester, cron builder, UUID generator โ all free, all client-side. Your data never leaves your browser.
No credit card ยท No account ยท No ads on free tools ยท Weekly tips newsletter
API Request Builder
Build and test HTTP requests visually
Regex Playground
Write, test, and debug regular expressions in real-time
Cron Expression Generator
Generate cron expressions with a visual interface
Git Command Builder
Build complex Git commands step by step
Docker Compose Generator
Generate docker-compose.yml configurations visually
Premium Products
Boilerplates, toolkits, and templates to ship faster.
Developer Productivity Bundle
Stop rebuilding the same setup every project. 51 VSCode snippets, 40 Git aliases, 5 Docker Compose stacks, 5 GitHub Actions workflows, 5 README templates, and a dotfiles kit. Set up a professional dev environment in under an hour.
AI Prompt Engineering Toolkit
Production-ready prompt templates, chain-of-thought workflows, and API integration code for GPT-4, Claude, Gemini, and any instruction-following LLM.
Developer Productivity Toolkit
Complete dev environment setup: VS Code settings, keybindings, snippets, shell aliases, Git hooks, tmux config, and Starship prompt. Copy, paste, code faster.
Latest Guides
In-depth articles to level up your development workflow.
API Testing in 2026: From cURL to Automated Test Suites
Complete guide to API testing: starting with cURL basics, moving to Postman/Insomnia, then automated test suites with JavaScript and Python. Includes real API examples.
Base64 Encoder Decoder: Complete Guide for Developers
Everything developers need to know about Base64 encoding and decoding. How it works, when to use it, common pitfalls, and a free online Base64 encoder decoder tool.
Base64 Encoding Explained: When to Use It and When to Avoid It
What is Base64 encoding, why it exists, and when to use it in web development. Includes real-world examples for APIs, image data URIs, and authentication tokens.
Free vs Pro
| Feature | Free | Pro $9/mo |
|---|---|---|
| 90+ developer tools | โ | โ |
| Runs in browser (private) | โ | โ |
| Daily tool usage limit | 10/day | Unlimited |
| AI Code Review | โ | โก |
| AI Doc Generator | โ | โก |
| Premium templates | โ | โก |
| Member-only discounts | โ | โก |
| Priority support | โ | โก |
7 days free ยท Cancel anytime
DevPlaybook Pro
AI-powered tools, exclusive templates, priority support, and member-only discounts.
- โก AI Code Review โ instant code feedback
- โก AI Doc Generator โ JSDoc, README, OpenAPI
- โก AI SQL Builder โ natural language to SQL
- โ All premium templates & future tools
- โ Member-only discounts on products
Secure payment via Gumroad. Cancel anytime.