Free Online Tools

Convert PNG, JPG, WebP, AVIF, BMP, GIF, TIFF, ICO

Set exact pixel dimensions and lock aspect ratio

Reduce file size with quality control

Rotate 90°/180° or flip horizontally/vertically

Encode any image as a Base64 data URI

Stamp custom text on your images

Crop with preset ratios or exact pixel coordinates

Remove the background from any photo

Count words, characters, sentences, and paragraphs

UPPER, lower, Title Case, camelCase, snake_case

Generate placeholder text in seconds

Compare two texts and highlight differences

Encode or decode URL special characters

Encode and decode text as Base64

Convert text to URL-friendly slugs

Strip accents and diacritics from text

Count how many times each word appears

Clean up text by removing duplicate line breaks

Pick a color and get HEX, RGB, HSL values

Convert between HEX, RGB, and HSL

Generate harmonious color palettes

Create CSS gradients visually and copy the code

Check WCAG accessibility contrast ratios

Format, validate, and minify JSON

Convert JSON to CSV and back

Minify CSS to reduce file size

Minify JavaScript to reduce file size

Format and beautify HTML code

Generate SEO and Open Graph meta tags

Generate Apache .htaccess rules

Calculate monthly mortgage payments

Spanish VAT: 21%, 10%, 4%

Gross to net salary with IRPF (Spain)

Calculate percentages and changes

Body Mass Index with healthy range

Exact age in years, months, and days

Calculate days between two dates

Weight, length, temperature, volume

Calculate tips and split the bill

Generate QR codes for any text or URL

Create strong, secure passwords

Generate UUIDs v4

Generate random numbers in any range

Create professional HTML email signatures

Generate a GDPR-compliant privacy policy

Generate robots.txt for your website

Merge multiple PDFs into one document

Convert Markdown to clean HTML

Convert Excel spreadsheets to CSV