Hundreds of useful tools.
One place.
Fast, browser-based utilities for images, code, text, and everyday tasks — nothing you process here leaves your device.
Popular tools
The ones people reach for most.
Browse by category
Everything sorted by what it's for.
Common pairings
Tools people often use together.
Format, encode, and ID data
Clean up a JSON payload, encode it, and generate a unique ID for it.
Secure, plan, and share
Create a strong password, work out a date, then share a link as a QR code.
Wherever technically possible, Kritools processes your files and text directly in your browser. Nothing is uploaded to a server just to use a tool.
About Kritools
Kritools is a free collection of browser-based utilities designed for developers, writers, students, and anyone who needs to get a small task done quickly. Each tool on the site runs entirely inside your browser using JavaScript — meaning files you convert, text you paste, and identifiers you generate never leave your device.
The collection currently spans four categories: developer tools (JSON formatting, Base64 encoding, UUID generation), image tools (format conversion and PDF creation), text tools (word and character counting with live stats), and productivity tools (password generation, date calculations, and QR code creation for URLs, Wi-Fi networks, UPI payments, and contact cards).
There are no accounts to create, no emails to verify, and no paywalls. Every tool works the same for every visitor, and preferences like dark mode are stored locally in your own browser.
New tools are added regularly. If you have an idea for one that would fit, reach out via the Contact page.