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.
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.
Enter a regular expression and instantly generate random string examples that match it — perfect for testing, fuzzing, and generating mock data.
Parse, visualize, and edit SVG path d attribute strings with live preview and command breakdown.
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.
Encrypt and decrypt with the Autokey cipher — extends the key with plaintext to eliminate Vigenère's period weakness.
Encrypt and decrypt text with the Caesar letter-shift cipher (ROT1-ROT25). Includes brute-force all-shifts view.
Converts standard base-10 integers into base-16 hex values. See hex, binary, octal, colour-coded digits, and division-by-16 algorithm steps.
Convert hex values to decimal, binary, and octal instantly. Color-coded nibbles, positional value breakdown, signed 32-bit interpretation, and batch mode.
Generates Kubernetes Pod manifests with multi-container, volume, resource limits, and environment variable support.
Scaffolds Nginx .conf files tuned for routing traffic to local Node.js or Docker ports with SSL, WebSocket, and gzip support.