Developer Utilities
A collection of secure, browser-based developer tools that also expose an MCP Server for your AI agents.
JSON Formatter
Format, validate, and minify your JSON data securely in the browser.
Base64 Encoder / Decoder
Quickly encode to and decode from Base64 format.
JWT Decoder
Decode JSON Web Tokens (JWT) and inspect their payload easily.
Diff Checker
Compare two text snippets or code blocks line-by-line.
Time Converter
Convert MongoDB ObjectIds and Unix timestamps to any timezone.
URL Encoder / Decoder
Encode and decode URI components and query strings.
HTML Entity Encoder / Decoder
Convert special characters to and from HTML entities.
Hex Converter
Convert between text, hexadecimal, and Base64.
Case Converter
Convert text between camelCase, snake_case, kebab-case, and more.
Slug Generator
Turn any title into a clean, URL-safe slug.
String Escape / Unescape
Escape and unescape strings for JS, SQL, and shell.
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes.
UUID / ULID Generator
Generate random UUIDs and sortable ULIDs in bulk.
Password / Secret Generator
Generate strong, configurable random passwords and secrets.
HMAC Generator
Generate HMAC signatures with MD5, SHA-1, SHA-256, or SHA-512.
Checksum Verifier
Verify content integrity against an expected checksum.
YAML ↔ JSON Converter
Convert between YAML and JSON formats.
CSV ↔ JSON Converter
Convert between CSV and JSON formats.
XML Formatter / Validator
Pretty-print, minify, and validate XML documents.
SQL Formatter
Beautify SQL queries across multiple dialects.
JSON Schema Validator
Validate JSON data against a JSON Schema.
JMESPath Tester
Query and extract data from JSON with JMESPath.
Regex Tester
Test regular expressions with live match highlighting.
Cron Expression Explainer
Turn a cron expression into a plain-English schedule.
Markdown Previewer
Write Markdown and preview the rendered HTML live.
HTTP Status Code Lookup
Search HTTP status codes and their meanings.
User-Agent Parser
Break down a User-Agent string into browser, OS, and device.
QR Code Generator
Generate a downloadable QR code from any text or URL.
Color Converter
Convert colors between HEX, RGB, HSL, and OKLCH.
CSS Unit Converter
Convert between px, rem, em, pt, vw, vh, and percent.
JWT Encoder
Sign a JSON Web Token from a header, payload, and secret.
Basic Auth Encoder / Decoder
Encode credentials into, or decode from, a Basic Auth header.
Lorem Ipsum Generator
Generate placeholder text by paragraphs, sentences, or words.
Number Base Converter
Convert numbers between binary, octal, decimal, and hex.
JSON Structural Diff
Compare two JSON documents and list what changed by path.
cURL ↔ Fetch Converter
Convert cURL commands to fetch() calls and back.
Also available via MCP
All these tools are accessible to AI agents. Connect to our Server-Sent Events endpoint to give your agents these capabilities.