DevTools - Developer Toolkit

Stop switching between browser tabs. DevTools brings 38 essential developer utilities into one fast, native Mac app — accessible in under a second with Cmd+K. — DEVELOPER ESSENTIALS — HTTP API Client — Send requests with custom methods, headers, and body. Inspect responses with syntax highlighting. Regex Playground — Test patterns, inspect capture groups, preview replacements in real time. Text Diff — Compare two texts line by line with unified view. JSON Path Query — Navigate JSON with dot paths and [index] syntax. Code Minifier — Strip whitespace from JSON, XML, HTML, and JavaScript. — FORMATTERS — JSON Formatter — Beautify, minify, and validate JSON instantly. XML Formatter — Prettify XML with proper indentation. JS Beautifier — Format and clean up JavaScript code. Markdown Preview — Side-by-side source and live rendered preview. — HASH & ENCODING — Hash Generator — MD5, SHA-1, SHA-256, SHA-512, bcrypt. JWT Encoder/Decoder — Decode and inspect JSON Web Tokens. Base64 Encoder — Encode and decode text or files. URL Encoder — Encode/decode URL components. HTML Encoder — Escape and unescape HTML entities. — NETWORK & WEB — DNS Lookup — Query A, MX, TXT, CNAME, and NS records. WHOIS Lookup — Domain registration and ownership details. IP Address Lookup — Geolocation and network metadata for any IP. HTTP Status Checker — Look up any HTTP status code with descriptions. User Agent Generator — Generate and parse browser user agent strings. WebSocket Client — Connect, send messages, and view live logs. TLS/Certificate Inspector — Inspect SSL/TLS chain and trust details. Network Diagnostics — Test connectivity and resolve network issues. — CONVERTERS — XML to JSON — One-click conversion with attribute support. CSV Viewer / CSV to JSON / JSON to CSV — Import, preview and convert tabular data. YAML Formatter / YAML to JSON — Work with YAML configs effortlessly. — SYSTEM & UTILITIES — ID Generator — UUID v4, ULID, and Nanoid in batch. Password Generator — Cryptographically secure passwords. Timestamp Converter — Unix epoch to human-readable date. Unit Converter — Length, weight, temperature, and more. File Size Calculator — Convert between KB, MB, GB, TB. Crontab Generator — Build and validate cron expressions visually. Color Converter — HEX, RGB, HSL with live color picker. cURL to Code — Convert curl commands to TypeScript, Python, Swift, and more. Image Format Converter — Convert between PNG, JPEG, WebP, and more. — WHY DEVTOOLS — Native Mac app — no Electron, no browser, no overhead. Command+K quick launch — find any tool in under a second. Works fully offline — no account, no telemetry, no internet required. One window — stop context switching between 10 different websites.