Free, fast browser-based tools — no install required.
Generate CODE128 barcodes online.
Decode Base64 to text online.
Encode text to Base64 online.
Encode and decode Base64 strings online.
Convert binary to text.
Convert text to binary.
Calculate Body Mass Index from height and weight.
Calculate basal metabolic rate.
Convert to camelCase.
Convert text to upper, lower, or title case.
Count characters in text online.
Convert between Simplified and Traditional Chinese.
Convert between HEX and RGB color formats.
Calculate compound interest.
Live countdown to a target date and time.
Calculate CRC32 checksum online.
Build cron expressions.
Parse cron expressions.
Generate border-radius CSS.
Generate box-shadow CSS.
Format CSS code.
Generate CSS gradient code.
Minify CSS code.
Convert CSV to JSON.
Decode hex to text.
Encode text to hexadecimal.
Decode HTML entities to text.
Encode text to HTML entities.
Encode and decode HTML entities.
Format HTML code.
Minify HTML code.
Preview HTML rendering live.
Convert HTML to Markdown online.
Strip HTML tags and extract plain text.
Format JavaScript code.
Minify JavaScript code.
Compare two JSON documents.
Format, minify and validate JSON online.
Minify JSON by removing whitespace.
Query JSON by dot path.
Sort JSON keys recursively.
Convert JSON to CSV.
Convert JSON to XML.
Convert JSON to YAML online.
Validate JSON syntax online.
Decode JWT tokens.
Generate JWT tokens.
Calculate profit margin.
Live preview of Markdown text.
Convert Markdown text to HTML online.
Preview Markdown and print to PDF.
Generate MD5 hash from text locally.
Generate SEO meta tags.
Calculate monthly mortgage payments.
Generate random colors.
Generate random decimal numbers.
Roll random dice.
Generate random emojis.
Generate random numbers in a custom range. Supports integers, decimals, and unique mode.
Generate secure random passwords with custom length and character sets.
Deal random poker cards.
Generate random RGB/HEX colors.
Randomly shuffle text lines.
Generate random strings.
Generate common regex patterns.
Test regular expressions against sample text.
Remove all whitespace from text.
Remove empty lines from text online.
Remove duplicate lines from text.
Remove emoji characters from text.
Remove special characters from text.
Generate robots.txt file.
ROT13 encode/decode text.
Detect screen and viewport dimensions.
Count sentences in text.
Generate SHA-1 hash online.
Generate SHA-256 hash.
Generate SHA-512 hash.
Convert to snake_case.
Look up 24 solar terms for any year.
Convert Gregorian dates to Chinese lunar calendar.
Beautify SQL with indentation.
Format SQL statements.
Minify SQL to one line.
Convert SVG code to PNG images.
Calculate tax amount.
Compare two texts online.
Remove duplicate lines from text.
Line-by-line text diff online.
Join multiple lines with a delimiter.
Sort text lines in ascending or descending order.
Mirror each line of text.
Reverse characters, lines, or words in text.
Split text by a custom delimiter.
Convert Unix timestamps to dates and back.
Convert datetime by UTC offset.
Calculate tip and split bill.
Convert text to title case.
Remove extra spaces and blank lines from text.
Encode and decode Unicode escape sequences.
Convert length, weight and temperature units.
Decode URL-encoded text.
Encode text for use in URLs.
Encode and decode URL strings online.
View your browser User-Agent string.
Decode UTF-8 hex bytes to text.
Encode text to UTF-8 hex bytes.
Generate random UUID v4 identifiers.
Generate UUID v1 identifiers.