Free · In-browser · No sign-up
Developer tools that
just work.
JSON Formatter
Pretty print, validate and minify JSON.
JSON Diff
Compare two JSON payloads side by side.
Base64 Encoder
Encode plain text to Base64.
Base64 Decoder
Decode Base64 into plain text.
JWT Decoder
Inspect JWT headers and payload locally.
Timestamp Converter
Convert Unix timestamps to ISO dates and back.
URL Encoder
Encode text for URLs and decode it back.
Regex Tester
Test regular expressions against input text.
Hash Generator
Generate SHA-1, SHA-256 and SHA-512 hashes in the browser.
SHA-256 Hash Generator
Generate SHA-256 cryptographic hashes instantly.
SHA-1 Hash Generator
Generate SHA-1 cryptographic hashes instantly.
MD5 Hash Generator
Generate MD5 cryptographic hashes instantly.
Cron Parser
Preview upcoming runs for a cron expression.
JSON → YAML
Convert JSON to YAML format.
YAML → JSON
Convert YAML to JSON format.
JSON → CSV
Export a JSON array to CSV format.
CSV → JSON
Parse a CSV document into a JSON array.
JSON Schema Generator
Paste JSON and get a JSON Schema instantly.
UUID Generator
Generate v1 and v4 UUIDs, single or in batches.
Password Generator
Generate strong passwords with custom rules.
HMAC Generator
Compute HMAC-SHA256/512 from a message and secret.
Bcrypt Hash
Hash and verify passwords with bcrypt.
JWT Generator
Sign a JWT with a secret using HS256 or HS512.
Query String Parser
Parse a query string into a JSON object.
Query String Builder
Build a query string from key-value pairs.
URL Parser
Break a URL into its components: protocol, host, path, query, fragment.
Slug Generator
Convert any text into a URL-friendly slug.
IP Validator
Validate and check if an IP address is an IPv4 or IPv6 format.
User-Agent Parser
Parse a browser User-Agent string to extract OS, browser, engine, and device.
HTTP Headers Parser
Parse raw HTTP headers into a structured JSON object.
Timestamp Generator
Convert a date and time to a Unix timestamp.
Timezone Converter
Convert a time between any two IANA timezones.
ISO Date Formatter
Format dates between ISO, Unix, Local and RFC formats.
Markdown → HTML
Convert Markdown text to HTML markup.
HTML → Markdown
Convert HTML markup back to Markdown.
HTML Escape
Escape or unescape HTML entities in text.
Text Diff
Compare two text blocks line by line or word by word.
Text Case Converter
Convert text between camelCase, snake_case, PascalCase, etc.
Lorem Ipsum Generator
Generate random placeholder text for designs and mockups.
Random String Generator
Generate random strings for tokens and IDs with custom rules.
HTML → JSX
Convert HTML markup to valid JSX for React.
SQL Formatter
Format and beautify SQL queries.
Color Converter
Convert colors between HEX, RGB and HSL formats.