All 39 Free Online Tools

Calculate exact age in years, months, days with birthday countdown and life stats

Encode and decode Base64 strings

Calculate Body Mass Index and health recommendations

Create CSS and Tailwind box shadows with live preview

Convert colors between HEX, RGB, HSL, and other formats

Test your clicking speed in clicks per second with real-time tracking

Minify and prettify CSS code with optimization options

Convert between different currencies with live rates

Remove duplicate lines from any list with sorting and whitespace options

Create CSS and Tailwind gradients with live preview

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text or files

Beautify or minify HTML code with configurable indentation

Compress images to reduce file size while maintaining quality

Convert images between different formats (JPG, PNG, WebP, etc.)

Resize images to specific dimensions or percentages

Find your IP address or look up any IP — location, ISP, ASN, timezone & threat detection

Format, validate, and beautify JSON data

Decode JWT tokens and inspect header, payload, expiry, and claims

Analyze keyword density and frequency in your content

Generate placeholder text for design and development

Preview markdown in real-time with GFM support and split view

Generate SEO meta tags for better search engine visibility

Generate strong, secure passwords with advanced customization options

Calculate percentages, percentage changes, and ratios

Generate QR codes for text, URLs, and contact information

Generate random integers, decimals, or Gaussian numbers in bulk

Generate robots.txt files for search engine crawling control

Count significant figures and perform arithmetic with correct sig fig rules

Generate XML and HTML sitemaps for better SEO and search engine indexing

Convert text between different cases (uppercase, lowercase, title case)

Compare two texts and highlight differences

Convert Unix timestamps to human-readable dates and vice versa

Calculate tips and split bills among multiple people

Test typing speed with live WPM, accuracy, and detailed results

Convert between various units (length, area, volume, temperature)

Encode and decode URLs with percent-encoding (RFC 3986)

Generate RFC 4122-compliant UUID v4 and v1-style unique identifiers

Convert between different weight units (kg, lbs, oz, etc.)

Count words, characters, paragraphs, and reading time