Developer Tools That Just Work
Free, fast, privacy-first interactive tools for developers. No signup required.
50+ free tools · No account needed · 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
Battle-tested automation scripts, CLI tools, and CI/CD workflows. Git cleanup, Docker pruning, log analysis, GitHub Actions CI, pre-commit hooks, and more.
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.
10 Free Developer Tools Every Web Dev Should Bookmark in 2026
The 10 best free developer tools every web developer should bookmark in 2026. From JSON formatters to regex testers, these browser-based tools save hours every week—no signup required.
API Mocking for Frontend Development: Complete Guide (2025)
How to use API mocking to develop frontend apps without a real backend. Covers MSW, JSON Server, mock services in Postman, browser-based mock APIs, and testing strategies.
API Rate Limiting: Strategies, Algorithms, and Free Tools
A complete guide to API rate limiting in 2025: Fixed Window, Sliding Window, Token Bucket, and Leaky Bucket algorithms explained, with implementation in Node.js, Python, and Go, Redis-based distributed limiting, and client-side backoff strategies.
Free vs Pro
| Feature | Free | Pro $9/mo |
|---|---|---|
| 50+ developer tools | ✓ | ✓ |
| Runs in browser (private) | ✓ | ✓ |
| Daily tool usage limit | 10/day | Unlimited |
| AI Code Review | ✗ | ⚡ |
| AI Doc Generator | ✗ | ⚡ |
| Premium templates | ✗ | ⚡ |
| Member-only discounts | ✗ | ⚡ |
| Priority support | ✗ | ⚡ |
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DevPlaybook Pro
AI-powered tools, exclusive templates, priority support, and member-only discounts.
- ⚡ AI Code Review — instant code feedback
- ⚡ AI Doc Generator — JSDoc, README, OpenAPI
- ⚡ AI SQL Builder — natural language to SQL
- ✓ All premium templates & future tools
- ✓ Member-only discounts on products
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