JSON to JSON Schema Generator - Online Infer Structure
Paste a sample JSON object and generate a basic JSON Schema describing its types and required fields. Local inference.
UD5 Toolkit
email, url, date, date-time. These are mapped to the appropriate HTML5 input types, enabling native browser validation.Paste a sample JSON object and generate a basic JSON Schema describing its types and required fields. Local inference.
Enter your FAQ questions and answers, and get ready‑to‑paste JSON-LD structured data. Boost search appearance.
Generate an Article or BlogPosting structured data with headline, author, and image. For rich blog results.
Build a complete Event structured data with performer, location, and dates. Get Google‑ready JSON‑LD for tickets.
Create a Product structured data with reviews, price, and availability. Boost your ecommerce visibility in search.
Build a recipe rich snippet by filling out ingredients, cook time, and nutrition. Get the valid JSON-LD code.
Generate a LocalBusiness structured data snippet with name, address, phone, and opening hours. Boost local SEO.
Create a Review or aggregateRating structured data. Perfect for star ratings in search results. Copy the code.
Fill in a form to generate a valid package.json for your Node.js project. Includes popular scripts and fields. Local only.
Paste a JSON array and view it as a formatted console.table() style output. Copy for terminal apps. Local.
Generate random JSON data with customizable fields (users, products, orders). Useful for frontend mocking. All local.
Convert a flat JSON object into a Java .properties file format. Handle nested values by dot notation. Local only.
Search and extract values from a large JSON object using dot/bracket notation. Quickly locate deeply nested fields. Data stays local in your browser.
Paste a JSON object and see a dynamic, draggable tree graph representation. Excellent for debugging nested data.
Paste a JSON array and filter/transform it using a simple path expression. Extract nested values without code. Local.
Build a complex mailto: link with to, cc, bcc, subject, and body. Get the HTML anchor tag. Local.
Split a text into an array of individual characters, ready to paste into code. Options for quotes and newlines.
Create a pure HTML dropdown menu using the popover attribute. Style it with CSS and copy the accessible snippet. No JavaScript.
Parse a URL's query string into a key-value table, or build a query string from parameters. Perfect for API testing and web development.
Fill in a table name and columns, and the tool writes the correct SQL INSERT, UPDATE, DELETE, and SELECT queries. For quick scaffolding.
Decode the header and payload of a JSON Web Token (JWT) without verifying the signature. Inspect claims securely on the client side. Great for developers.
Execute GraphQL queries against any endpoint with variables and headers. Explore schema via introspection. All requests made directly from your browser.
Build cron expressions using a visual editor with dropdowns. See human-readable description and next run times. Easier than raw cron.
Upload a logo and generate a complete favicon package: .ico with 16, 32, and 48px sizes. No upload needed.
Create a tailored cover letter based on job title, your skills, and a template. Download as text or PDF print. Private.
Build a GraphQL query by selecting fields and nesting visually. Copy the built query string. For learning and fast prototyping.
Fill in a few details and get a polished resignation letter. No data stored. Instant copy or print.
Generate a QR code with a custom text label below or above. Perfect for printed signs. All generated locally as a single image.
Enter a list of words and generate a custom word search puzzle in PDF/PNG format. Great for teachers and parties. Local.
Create a favicon for your website by uploading an image. Resize to standard sizes, download as .ico or PNG. All done locally without server involvement.