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.

List Randomizer

Randomize the order of items in a list 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.

QR Generator

Generate customizable, high-quality QR codes.

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.

Word Counter

Count words, characters, sentences, and estimate reading time.

Markdown Editor

Write Markdown with a real-time split-pane HTML preview.

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HTML → JSX

Convert HTML markup to valid JSX for React.

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SQL Formatter

Format and beautify SQL queries.

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Color Converter

Convert colors between HEX, RGB and HSL formats.