Test StereoPannerNode to move audio between left and right channels with a visual pan meter display.
Convert CSV text to a JSON array instantly. Choose headers, delimiter, and auto-parse numbers and booleans.
Infer an Apache Avro schema from a pasted JSON object or array. Instantly generates the correct Avro record definition.
Convert a JSON array of objects to CSV format. Auto-detects all keys as headers. Choose delimiter and quoting options.
Inject AWS DynamoDB type descriptors (S, N, L, M) into standard JSON for use with the DynamoDB API.
Convert JSON objects to TOML configuration format instantly. Supports nested objects, arrays, strings, numbers, booleans, and ISO dates.
Convert JSON objects and arrays to well-formed XML. Set root and item element names, indentation, and XML declaration.
Generate K-Sortable Unique Identifiers (KSUIDs) — time-ordered, Base62-encoded 27-character IDs with decode support. Fast & private.
Calculate voltage, current, resistance, and power using Ohm's Law. Enter any two values to solve the other two.
Build valid redis:// and rediss:// connection URIs with authentication, port, and database index options.
Paste sitemap XML to extract all URLs — supports standard urlset and sitemapindex formats with path prefix and lastmod date range filters. Download as .txt.
Convert WebVTT subtitle files to SubRip (SRT) format by stripping cue settings and reformatting timestamps.
Visualize WCAG 2.1 AA (44×44px) and 2.2 AA (24×24px) touch target requirements with an interactive overlay and batch checker.
Generate Apple apple-app-site-association (AASA) and Android assetlinks.json files for mobile app deep linking.
Analyze an audio file locally to get approximate integrated loudness, true peak, dynamic range, and technical metadata — nothing is uploaded.
Paste any JavaScript, CSS, or HTML to see its raw size and estimated gzip payload — find out exactly how much bandwidth your code costs.
Visually constructs and validates strict Content Security Policy HTTP headers directive by directive.
Generate DNS TXT records for DMARC to protect your domain from email spoofing and phishing.
Parses GraphQL SDL type definitions and generates TypeScript interfaces, enums, and union types for use in frontend clients.
Converts MongoDB Mongoose schema definitions into strongly-typed TypeScript interfaces and type declarations.
Visually construct complex Redis commands with all options and generate the complete CLI string instantly.
Enter a regular expression and instantly generate random string examples that match it — perfect for testing, fuzzing, and generating mock data.
Converts SQL CREATE TABLE statements into Prisma ORM schema models, mapping SQL types to Prisma field types automatically.
Parse, visualize, and edit SVG path d attribute strings with live preview and command breakdown.
Tests an entire color palette against each other simultaneously to find WCAG AA and AAA compliant pairs.
Convert .ttf or .woff2 font files to base64 and generate the exact @font-face CSS and <link rel="preload"> HTML to prevent font layout shift.
Visualizer for JavaScript Intl.DateTimeFormat API with date styles and time zones.
Interactive playground for JavaScript Intl.NumberFormat API.
Convert JSON payloads into MobX State Tree (MST) model definitions with inferred types.
Generate Redux Toolkit slice boilerplate (state, reducers, actions) from a JSON initial state.