Developer Tools

Interactive real-time visualization of sorting, pathfinding (A*, Dijkstra), and tree traversals.

Execute SQL queries, load schemas, import CSVs, and analyze execution plans client-side via SQLite WASM.

Interactive AST and DFA/NFA state machine visualizer for regular expressions.

Step-by-step Java code visualizer tracking stack frames, heap objects, and variable states.

Format, validate, minify, and inspect JSON with hierarchical tree navigation and syntax highlighting.

Decode and inspect RFC 7519 JSON Web Tokens, headers, payload claims, and expiration timestamps.

Convert raw JSON payloads into strongly typed TypeScript interfaces and type definitions.

Compile draft-07/2020-12 JSON Schemas into TypeScript types and Zod validation schemas.

Compress structured JSON data into token-efficient TOON format for LLM prompts.

Convert cURL commands to Fetch, Axios, Python Requests, Go, Rust, and Swift code snippets.

Format, beautify, and indent messy SQL queries with dialect-specific keyword casing.

Inspect browser HTTP Archive (HAR) files, analyze TTFB latency, and find network bottlenecks.

Decode PEM/DER SSL certificates client-side. Inspect SAN domains, expiry dates, and trust chains.

Count tokens across BPE tokenizers and compare pricing across frontier AI models.

Automatically repair truncated AI JSON, fix missing brackets, unescaped quotes, and strip reasoning tags.

Scrub API keys, credit cards, emails, IP addresses, and PII from prompts before sending to AI models.

Simulate and verify HMAC webhook signatures for Stripe, GitHub, Shopify, and Razorpay.

Calculate octal (e.g. 755), symbolic (rwxr-xr-x), and umask permissions for Unix file systems.

Minify vector SVGs, strip metadata, optimize paths, and export JSX React components.

Generate color palettes, Tailwind CSS scales, and test WCAG 2.2 contrast compliance.

Generate synthetic test datasets in SQL INSERT, JSON, CSV, and TypeScript formats.

Convert PNG, JPG, and WebP images to Base64 Data URIs and decode strings back to images.

Encode text and binary strings to RFC 4648 standard Base64 and decode back instantly.

Percent-encode special characters in URLs and query strings per RFC 3986.

Test regular expressions in real-time with syntax highlighting and capture group inspection.

Generate cryptographically secure RFC 4122 Version 4 and time-ordered Version 7 UUIDs.

Transform strings into SEO-friendly, clean, hyphenated URL slugs.

Compare two text snippets with side-by-side or inline character/line diffs.

Convert numbers between Binary, Octal, Decimal, and Hexadecimal notations.

Convert colors between HEX, RGB, HSL, and CMYK formats with live canvas preview.

Convert single docker run CLI commands into clean compose.yaml Docker Compose files.

Convert special characters into HTML named entities and decode numeric codes.

Inspect live keyboard event properties (event.key, event.code, keyCode, modifiers).

Parse browser User-Agent strings, operating system, rendering engine, and device screen metrics.

Build and translate standard 5-part cron expressions into human-readable schedules.

Convert tabular CSV files to JSON objects and convert JSON arrays to CSV downloads.

Bidirectional YAML and JSON parser with syntax validation and indentation formatting.

Extract the embedded text layer from a PDF document directly in your browser and copy or download it as plain text, with 100% client-side privacy.

Compress JavaScript, HTML, CSS, JSON, SQL, and GraphQL code with instant byte-savings calculations.

Prettify, indent, and format JS/TS, HTML, CSS, JSON, SQL, and GraphQL code with custom indentation rules.

Encode files, images, SVG, and audio into RFC 2397 Data URIs with live canvas previews and HTML/CSS snippets.

Inspect binary byte streams with canonical 16-byte offset rows, ASCII gutter, Endianness toggle, and C array exports.

Interactive 8/16/32/64-bit clickable bit matrices with multi-radix synchronization and bitwise ALU operations.

Generate strongly typed TypeScript, Zod, Python, Rust, and Go types from arbitrary JSON payloads.

Infer Draft-07 and Draft 2020-12 JSON Schemas with semantic format detection (email, date, uri, uuid).

Simulate custom REST API routes, HTTP status codes, latency delays, and export cURL/Fetch snippets.

Query DNS records (A, AAAA, CNAME, MX, TXT, NS, SOA, CAA) over DNS-over-HTTPS with zero server logging.

Calculate IPv4 & IPv6 subnet boundaries, CIDR prefixes, wildcard masks, and 32-bit bitmask matrix.

Inspect HTTP response headers, audit OWASP security compliance, and generate server hardening rules.

Design responsive CSS Grid and Flexbox layouts visually and export clean Tailwind CSS 4 and pure CSS code.

Simulate damped harmonic spring physics, manipulate cubic-bezier curves, and export CSS linear() easing.

Design radial mesh gradients and frosted glass backdrop filters with Tailwind CSS 4 and pure CSS export.

Decode Google Protocol Buffers binary wire format and map fields with optional .proto schemas.

Inspect Apache Parquet and Arrow binary files in browser RAM, browse schema metadata, and export to CSV/JSON.

Visualize PostgreSQL & MySQL EXPLAIN ANALYZE trees, detect sequential scan bottlenecks, and get index suggestions.

Connect to real-time WebSockets and Server-Sent Events, inspect traffic frames, and test heartbeat pings.

Test and debug XPath 3.1 expressions and CSS Selectors against HTML with live node highlighting.

Extract, clean, and convert raw HTML tables into structured JSON, CSV, and Markdown datasets.

Extract Open Graph, Twitter Cards, and Schema.org JSON-LD from HTML with live social previews.