All 104 free online tools

Combine several PDF files into one document.

Extract pages or split a PDF into parts.

Turn photos and scans into one PDF file.

Reorder, delete or keep only the pages you need.

Fix sideways pages in a PDF and save it.

Stamp page numbers onto every page.

Add a text watermark to protect a document.

Compress JPG, PNG and WebP images in your browser.

Resize one image or hundreds at once — free and online.

Resize images by exact dimensions or percent.

Convert images between JPG, PNG and WebP.

Crop pictures online to any size or aspect ratio.

Add styled text to any photo and download a PNG.

Click a color to erase it and export transparent PNG.

Convert an image to a base64 string.

Turn a base64 string back into an image.

Pick exact colors out of any image.

See an image size, dimensions and ratio.

Inspect the details stored in an image.

Make a favicon from text or emoji.

Format, minify and validate JSON in one click.

Shrink JSON to its smallest size.

Encode or decode text to and from base64.

Encode or decode URL strings safely.

Pretty-print messy HTML for readability.

Pretty-print or minify CSS.

Format or minify JavaScript.

Pretty-print XML documents.

Format SQL queries for readability.

Generate v4 UUIDs instantly, in bulk.

Convert Unix timestamps to dates and back.

Decode JWT tokens without a server.

Create signed JWTs from scratch.

Test regular expressions live against your text.

Hash text with MD5 and every SHA.

Learn what every HTTP status means.

Convert CSV into clean, readable JSON.

Convert to/from Roman numerals

Generate SEO meta, Open Graph and Twitter tags.

Build clean, trackable UTM campaign URLs.

Preview how your links look when shared.

Preview how your page looks in Google.

Measure keyword density in your copy.

Build clean canonical URLs.

Generate hreflang tags for multilingual sites.

Create JSON-LD structured data.

Build FAQPage JSON-LD fast.

Generate BreadcrumbList JSON-LD.

Generate a clean robots.txt with sitemap reference.

Generate a valid XML sitemap for your site.

Titles that earn YouTube clicks.

Ready descriptions for your videos.

Create SEO-friendly URL slugs from any text.

Count words, characters and reading time.

Convert text case and clean up formatting.

Convert Markdown to clean HTML instantly.

Strip duplicate lines from text.

Sort lines with options.

Reverse text, words or lines.

Clean up double spaces.

Join lines or replace breaks.

Repeat text N times.

Encode text as binary.

Decode binary back to text.

Encode text as hex.

Decode hex back to text.

See ASCII codes for your text.

Generate placeholder text in one click.

Random words for filler and ideas.

Turn text into ready-to-use social hashtags.

Cryptographic tokens and API keys.

CRC32 checksums for your files.

Escape or unescape HTML safely.

Inspect links before you click.

Strong random passwords with a live strength meter.

Score passwords before you use them.

Strong secret keys for signing.

Hash any file with SHA-256.

Convert color formats and check WCAG contrast.

Pick and copy colors in any format.

Check WCAG contrast ratios.

Harmonious palettes in one click.

CSS gradients built visually.

Design box shadows visually.

Rounded corners made easy.

Monthly instalment, total interest and total cost.

Estimate your monthly mortgage payment.

See how savings grow over time.

Percentages answered instantly.

Know your margin before you price.

Add or extract VAT fast.

Final price after the sale.

Work out percent increase or decrease.

Mean, median, min and max fast.

Simplify ratios and split totals.

Age in years, months and days.

Days between dates, exact.

Body Mass Index calculator

Grade Point Average calculator

Compare two JSON structures.

Spot differences between two texts.

Create scannable QR codes from text or URLs.

Count up or count down.

Random numbers, your way.