BuilderTools.dev
Essential tools for everyone building digital products
Whether you're a seasoned developer, building apps with AI assistance, or just getting started with no-code tools - you need quick, reliable utilities that just work. No setup, no learning curve, no hassle.
Perfect for AI builders: Converting data formats, calculating costs, fixing JSON errors, and handling the technical bits while you focus on prompting and creating.
Builders Worldwide
Developers + AI builders
Tools Available
More launching weekly
Setup Time
Just open and use
Built for Modern Builders
Professional Developers
Speed up daily tasks and eliminate repetitive calculations
AI-Powered Builders
Essential tools for those building apps with ChatGPT, Claude, and other AI
Vibe Coders
No-code/low-code enthusiasts who need quick, reliable calculations
Popular Tools
Most impactful tools for AI builders, developers, and creators
JSON Repair Tool
AvailableFix broken or malformed JSON from AI models, APIs, and data sources. Automatically repair syntax errors, missing quotes, and formatting issues.
💡 Perfect for cleaning up AI-generated JSON with syntax errors
URL Parameter ↔ JSON Converter
AvailableConvert between URL parameters and JSON format instantly. Extract query strings to JSON or build URLs from JSON objects. Perfect for API testing, AI prompts, automation workflows, and web development.
💡 Great for converting website URLs into data that AI can work with
Data Format Converter
AvailableConvert between JSON, CSV, and XML formats instantly. Handle all combinations with smart data structure preservation and validation.
💡 Transform datasets between formats for AI training and automation workflows
Hash & Encoding Toolkit
AvailableGenerate MD5, SHA-256, Base64 encoding, and JWT token decoding. Client-side processing for security and data transformation.
💡 Secure data processing for AI workflows and API integrations
CSS Unit Calculator
AvailableConvert between px, rem, em, vw, vh with live preview and responsive breakpoints. Perfect for AI-generated CSS and responsive design.
💡 Perfect when AI gives you CSS code but you need different units
CSS Grid Generator
AvailableCreate complex CSS Grid layouts with visual editor and live preview. Generate responsive grids, dashboard layouts, and card systems.
💡 Build sophisticated grid layouts visually without guessing CSS properties
Coming Soon
Next wave of tools for AI builders and developers alike
CSS Gradient Generator
SoonCreate complex gradients with visual editor and copy-paste CSS code
Build beautiful gradients for modern web designs and AI-generated layouts
CSS & DesignSprint Capacity Calculator
SoonTeam velocity tracking with realistic timeline estimation and capacity planning
Plan development sprints and estimate project timelines accurately
Performance & PlanningJWT Token Generator & Validator
SoonCreate and decode JWT tokens with security analysis and validation
Debug authentication issues and validate token security in APIs
Security & EncodingGit Workflow Visualizer
SoonInteractive git history with branch strategy recommendations and conflict resolution
Understand complex git workflows and optimize team collaboration patterns
Project & ProductivityTypography Scale Calculator
SoonGenerate responsive font size scales for design systems and consistent typography
Create harmonious type scales for professional web design and UI systems
CSS & DesignBundle Size Analyzer
SoonJavaScript bundle optimization with performance insights and recommendations
Optimize web performance by analyzing and reducing JavaScript bundle sizes
Performance & PlanningWhy BuilderTools.dev Exists
The way people build software is changing. Whether you're writing code by hand, collaborating with AI, or using no-code platforms - you still need reliable tools that handle the technical details quickly and accurately.
Perfect for AI Builders
- Convert data for AI prompts
- Fix malformed AI outputs
- Transform between data formats
- Handle technical details while you create
- No coding knowledge required
Built for Everyone
- Professional developers
- ChatGPT/Claude power users
- No-code app builders
- Technical project managers
Building the future of productivity tools. Have an idea for a tool that would save you time while building with AI or code? We're always looking for the next problem to solve.
Frequently Asked Questions
What types of tools does BuilderTools.dev offer?
We provide specialized micro-tools for data conversion, AI development, CSS calculations, API cost estimation, and project planning. All tools are designed to work seamlessly with modern development workflows including AI-assisted building and no-code platforms.
Are BuilderTools.dev tools free to use?
Yes! All our basic tools are completely free with no registration required. We're building premium features for power users, but our core mission is providing essential utilities that every builder can access instantly.
How do these tools help with AI-assisted development?
Our tools are optimized for AI workflows. Convert data to AI-friendly formats, estimate API costs before building, validate AI outputs, and handle technical calculations while you focus on prompting and creating.
Can I integrate BuilderTools with my existing workflow?
Absolutely! Our tools work great with ChatGPT, Claude, Zapier, Make, Bubble, Webflow, and traditional development environments. Copy-paste results anywhere or use our upcoming API for programmatic access.