Generate random numbers online
Generate one or many cryptographically random integers in a range, optionally unique, in your browser.
Frequently asked questions
Only if "Unique" is unchecked; with it checked, no number appears twice.
No, generation happens entirely in your browser.
Recently viewed
Encode or decode HTML entities online
Convert text to and from HTML entities instantly in your browser.
Parse and view HTTP headers online
Paste raw HTTP request or response headers to see them parsed into a labeled table, in your browser.
Split a PDF into separate files for free
Extract pages or split a PDF into multiple files instantly in your browser.
Popular tools
Format and validate JSON online
Paste JSON to pretty-print, minify, and validate it instantly in your browser.
Split a PDF into separate files for free
Extract pages or split a PDF into multiple files instantly in your browser.
Merge PDF files online for free
Combine multiple PDF files into a single document in your browser. No install, no signup.
Generate a strong random password
Generate a cryptographically random password with adjustable length and character sets, in your browser.
Generate a vCard QR code for free
Share your contact details instantly with a scannable vCard QR code.
Generate a Wi-Fi QR code for free
Create a QR code that connects devices to your Wi-Fi network instantly.
Compress an image online for free
Reduce image file size while preserving visual quality, right in your browser.
Convert PNG to JPG for free
Convert a PNG image to JPG right in your browser, with adjustable quality.
Compress a PDF file for free
Shrink PDF file size while keeping quality readable, right in your browser.
Resize an image online for free
Resize JPG, PNG, or WebP images to exact dimensions or a percentage, right in your browser.
Convert PDF to Word for free
Turn a PDF into an editable Word document in seconds.
Generate a QR code for free
Create a static QR code for a URL, text, Wi-Fi, or contact card in seconds.