45 tools.
One API key.

Encode or decode HTML entities

Generate an HMAC signature for a message

Hash a password with bcrypt or verify a password against a bcrypt hash

Decode a JWT without verifying the signature

Generate a secure random password

Generate a TOTP secret and current code, or get current code for an existing secret

URL encode or decode a string

Sort CSV rows by one or more columns

Extract, reorder, or rename columns from CSV

Parse CSV text to a JSON array of objects

Flatten nested JSON to dot-notation keys

Pretty-print or minify JSON

Query JSON with a JMESPath expression

Convert a JSON array (or single object) to CSV text

Expand dot-notation keys back to nested JSON

Convert XML text to JSON

Convert between YAML and JSON

Filter CSV rows by column value or simple condition

Remove duplicate rows from CSV

Add or subtract days, hours, minutes, or seconds from a date

Count business days (weekdays) between two dates

Convert a date/time between timezones

Get the next N run times for a cron expression

Calculate the difference between two dates

Reformat a date/time to a given strftime pattern

Parse any date string and return ISO 8601

Convert between date string and Unix timestamp

Rotate image by an angle in degrees

Crop image to coordinates or center-crop to an aspect ratio

Resize image to dimensions or percentage, optionally maintain aspect ratio

Count words, characters, sentences, and paragraphs in text

Generate a UUID (v4 random or v5 namespace-based)

Normalize unicode text and optionally strip accents

Truncate text to a given length with optional ellipsis

Remove HTML tags from text, keeping text content

Convert text to a URL-friendly slug

Reverse a string or its words

Find and replace text using regex

Extract regex matches from text

Convert Markdown text to HTML

Generate lorem ipsum placeholder text

Hash text with a specified algorithm

Compare two texts and return a unified diff

Convert text between cases (upper, lower, title, camel, snake, kebab, pascal)

Encode or decode text as Base64