JSON to GraphQL Schema Converter – Quick Type Defs
Paste a sample JSON response and get back a GraphQL type definition. Speeds up mocking an API layer from a REST endpoint.
UD5 Toolkit
Enter your GraphQL schema on the left and click Convert to generate documentation.
This tool automatically converts your GraphQL SDL (Schema Definition Language) into clean, well-structured Markdown documentation. It parses types, fields, arguments, enums, interfaces, unions, and scalars — then generates human-readable docs perfect for API references, team wikis, or developer portals.
Markdown is universally supported across GitHub, GitLab, Notion, Confluence, and static site generators. Converting your schema to Markdown makes it easy to share API documentation with your team, embed it in README files, or publish it without needing specialized GraphQL tools.
Yes! The parser recognizes both """triple-quoted""" block descriptions and "single-quoted" inline descriptions as specified in the GraphQL spec. It also captures # line comments above type and field definitions, ensuring your documentation is as rich as your schema.
We support type definitions (including Query, Mutation, Subscription), input types, enum types with all values, interface definitions, union types, scalar declarations, field arguments with types, list and non-null wrappers, @deprecated directives, and extend type extensions. The generated Markdown includes a table of contents, detailed field tables, and cross-references.
Absolutely. This is a completely free online tool with no registration, no usage limits, and no data storage. Your schema stays in your browser — nothing is ever sent to any server. You can generate, preview, copy, and download your documentation instantly.
Yes! Use the Download .md button to save the generated documentation as a .md file directly to your device. You can also use the Copy button to copy all Markdown content to your clipboard with one click.
When the Auto toggle is active (highlighted state), the tool automatically regenerates the Markdown documentation as you type or paste your schema — with a short 400ms debounce to ensure smooth performance. Toggle it off if you prefer manual conversion via the Convert button.
Paste a sample JSON response and get back a GraphQL type definition. Speeds up mocking an API layer from a REST endpoint.
Enter a router's MAC address or serial and generate the common default WPA passphrase for major ISP brands. Educational purpose only.
Pick colors for the shadcn/ui design system and generate the complete CSS variable theme file. Copy into your project.
Format a list of Q&A pairs and export as a CSV ready for Anki import. Simple line‑based template. Local.
Style underlines, overlines, and strike-throughs with colors, wavy styles, and thickness. Modern CSS text‑decoration.
Generate a random medieval occupation with a short description. For NPCs or historical curiosity. Local list.
Generate a hardboiled film noir plot with a detective, a dame, and a McGuffin. Great for creative writing prompts.
Generate a grand, aristocratic title like 'Duke of Waffleshire'. Perfect for silly fun or RPG characters. Local.
Design a button or card that glows on hover. Adjust shadow color, spread, and transition. Copy the CSS. Rich UI.
Create a realistic letterpress (debossed) text effect using CSS text‑shadow and background. Adjust depth and light direction. Copy code.
Generate a realistic‑sounding dinosaur name and see a fun description. Perfect for kids and writers.
Generate random but realistic‑looking data arrays (users, products, orders) with typos and missing fields. For test robustness.
Create a customizable checkerboard or grid background using pure CSS gradients. Adjust cell size and colors. Copy the code.
Create a QR code that lets people connect to your Wi‑Fi without typing a password. Just scan and join. Secure local.
Create a custom HTML/CSS progress bar with percentage, colors, and animation. Copy the code. Modern UI element.
Fill in a few details and get a polished resignation letter. No data stored. Instant copy or print.
Paste plain text and turn it into a nested outline using indent levels or Markdown headings. Great for planning.
Upload a small pixel art image and get a CSS grid layout that recreates it using divs. Novelty developer tool.
Convert short text into a black‑and‑white Braille bump image ready for embossing. Educational and inclusive.
Generate a random, somewhat meaningful song lyric line. Write your own hit with AI‑free randomness. All local.
Generate a realistic‑sounding exoplanet designation (e.g., Kepler‑442b) and a sci‑fi planet description. For worldbuilding.
Create a realistic‑looking fake tweet with any name, handle, text, likes, and retweets. Just for laughs. All local canvas.
Click for an endless stream of random dad jokes and puns. Copy and share. Guaranteed to make you groan. All local.
Generate magic squares of odd order (3x3, 5x5, …). See the sum constant and verify rows, columns, diagonals. Educational math toy.
Enter a list of words and create a custom word search grid. Choose difficulty, print or export as PDF. Great for teachers.
One click to get a hilarious excuse for being late, missing homework, or not doing chores. Pure comedy.
Design a realistic-looking fake receipt with custom store name, items, and total. For jokes and gags. No real transaction.
Click to generate a random haiku from natural language templates. Pure algorithmic poetry fun. Copy and share.
Generate a QR code with a custom text label below or above. Perfect for printed signs. All generated locally as a single image.
Execute GraphQL queries against any endpoint with variables and headers. Explore schema via introspection. All requests made directly from your browser.