Generate a UUID v4

Hash text using md5, sha1, or sha256

Encode or decode base64

Convert between Unix timestamps and ISO 8601 dates

Decode a JWT token (no signature verification, just decode the payload)

Generate a random string or password

URL encode or decode a string

Format (pretty-print) or minify JSON

Convert between YAML and JSON. Auto-detects input format or use direction param

Test a regex pattern against a string

Explain a cron expression in plain English and show the next 5 run times

Generate an HMAC signature for a message

Convert colors between hex, RGB, and HSL formats

[PRO — 3 trial uses left] Compare two semantic versions or check if a version satisfies a range

Look up HTTP status code meaning, category, and common usage

Generate a URL-safe slug from text

Escape or unescape HTML entities

[PRO — 3 trial uses left] Convert between numeric and symbolic Unix file permissions (e.g. 755 ↔ rwxr-xr-x)

[PRO — 3 trial uses left] Compare two text strings and show the differences line by line

[PRO — 3 trial uses left] Convert numbers between decimal, hexadecimal, octal, and binary

[PRO — 3 trial uses left] Generate placeholder lorem ipsum text

[PRO — 3 trial uses left] Count characters, words, lines, and bytes in text

[PRO — 3 trial uses left] Parse CIDR notation and show network address, broadcast, host range, and number of hosts

[PRO — 3 trial uses left] Convert text between camelCase, snake_case, PascalCase, kebab-case, CONSTANT_CASE, and Title Case

[PRO — 3 trial uses left] Generate a table of contents from markdown headings

[PRO — 3 trial uses left] Parse and validate .env file contents — shows keys, detects issues like missing values, duplicate keys, or invalid lines

[PRO — 3 trial uses left] Parse and analyze an IP address — shows type (IPv4/IPv6), class, whether private/public/loopback/link-local

[PRO — 3 trial uses left] Analyze password strength — calculates entropy, checks length, character diversity, and common patterns

[PRO — 3 trial uses left] Convert between data size units (bytes, KB, MB, GB, TB, PB) with both decimal (SI) and binary (IEC) representations

[PRO — 3 trial uses left] Escape or unescape strings for various contexts: JSON, CSV, regex, SQL, or shell

[PRO — 3 trial uses left] Generate compact, URL-safe unique IDs (like UUID but shorter). Customizable length and alphabet.

[PRO — 3 trial uses left] Convert between CSV and JSON. CSV→JSON parses CSV text into an array of objects. JSON→CSV converts an array of objects to CSV.

[PRO — 3 trial uses left] Encode text to hexadecimal or decode hex back to text

[PRO — 3 trial uses left] Get Unicode character info — codepoint, name category, UTF-8 bytes, HTML entity for each character in the input

[PRO — 3 trial uses left] Count the byte length of a string in UTF-8, UTF-16, and ASCII. Useful for checking API payload sizes and database field limits.

[PRO — 3 trial uses left] Compare two JSON objects and show the differences — added, removed, and changed keys. Useful for debugging API responses, config changes, and state diffs.

[PRO — 3 trial uses left] Create a JWT token signed with HS256. Useful for testing APIs, mocking auth, and generating test tokens.

[PRO — 3 trial uses left] Format a SQL query with proper indentation and keyword capitalization. Supports SELECT, INSERT, UPDATE, DELETE, CREATE TABLE, and JOIN queries.

[PRO — 3 trial uses left] Extract values from a JSON object using dot-notation paths (e.g. 'user.address.city', 'items[0].name', 'data[*].id'). Useful for quickly inspecting nested API responses.

[PRO — 3 trial uses left] Convert between epoch milliseconds, seconds, and human-readable dates across multiple timezones. Shows UTC, US Eastern, US Pacific, Europe/London, and Asia/Singapore.

[PRO — 3 trial uses left] Encrypt text using AES-256-CBC. Returns hex-encoded IV + ciphertext. Use a strong key (will be hashed to 256 bits internally).

[PRO — 3 trial uses left] Decrypt AES-256-CBC encrypted text. Expects hex-encoded input from aes_encrypt.

[PRO — 3 trial uses left] Generate an RSA key pair (PEM format). Useful for testing, dev environments, and learning.

[PRO — 3 trial uses left] Hash a password using Node.js scrypt (RFC 7914). Returns hex-encoded salt + hash for secure password storage.

[PRO — 3 trial uses left] Find and replace text using a regular expression. Supports capture groups ($1, $2, etc.) in the replacement string.

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