Everything you do with a QR code
Making a code is only half the job. Scan one with your camera, decode a screenshot, check that a code will actually scan, take it apart to see what's inside, work out the right print size, and test your colors — all free, all in your browser.
Six tools for working with QR codes
Each one does a single job well — pick what you need and go. Nothing to install, nothing to sign up for.
Scanner
Scan a QR code live with your camera and open what's inside instantly.
Open toolDecoder
Upload a QR image or screenshot and read the exact link or text it holds.
Open toolValidator
Check that a QR code is well-formed and reliably scannable before you print.
Open toolAnalyzer
Break a QR code down — its data type, length, version and error correction.
Open toolSize Calculator
Work out the right print size for your QR code based on scan distance.
Open toolColor Checker
Test your foreground and background colors for enough contrast to scan.
Open toolPrivate by design, free by default
Runs in your browser
Scanning, decoding and analysis all happen on your device — your images and links never get uploaded to a server.
No account needed
Every tool is free with no sign-up, no watermark and no limits. Open it and start working straight away.
Made to pair up
Validate then resize before you print, or decode then analyze to see exactly what a code holds. The tools work together.
Built to be fast, private and free
No accounts, no uploads, no upsell. Just the utilities you reach for when a QR code has to work in the real world.
Instant results
Everything runs the moment you point your camera or drop an image — no waiting on a server round-trip or a loading spinner.
Your data stays put
Images and links are processed on your device and never leave it. Nothing is stored, logged or sent anywhere.
No catch
Free forever with no watermark, no scan limits and no sign-up wall. Bookmark the toolbox and use it whenever.
Works on any device
Phone, tablet or desktop — every tool is responsive and uses your camera or files right in the browser.
Print-ready checks
Validate contrast and size before you send a design to the printer, so codes scan the first time, every time.
Designed to pair up
Decode then analyze, or validate then resize — the tools hand off cleanly so you can finish a whole task in one place.
Handy for just about everyone
Whatever you print a QR code on, there's a tool here to make sure it actually works.
Restaurants & retail
Check that a menu or storefront code scans from across the table or through a window before it goes on the wall.
Marketers
Decode a competitor's flyer, confirm your own campaign links resolve, and size codes for posters and billboards.
Event organizers
Validate ticket and check-in codes ahead of the door so the line keeps moving and nothing fails to scan.
Designers
Test brand colors for enough contrast and confirm a styled code still reads cleanly at your target size.
Teachers & students
Quickly scan a handout code or see exactly what a mystery code links to before opening it.
The cautious
Decode a code to read its link in plain text first — so you know where it goes before you ever tap it.
Questions, answered
Are these tools really free?
Yes — every tool on this page is completely free with no sign-up, no watermark and no usage limits. There's nothing to install and no paid tier.
Do my images or links get uploaded anywhere?
No. Scanning, decoding, validating and analyzing all happen locally in your browser. Your files and the data inside your codes never leave your device.
Which is right — the Scanner or the Decoder?
Use the Scanner to read a physical code with your camera in real time. Use the Decoder when you already have an image or screenshot of a QR code and want to read what it contains.
How do I make sure a code will scan once printed?
Run it through the Validator to confirm it's well-formed, use the Color Checker to verify enough contrast, then use the Size Calculator to pick a print size for your expected scan distance.
Can I create a QR code here too?
Absolutely. Head to the generator to build a branded code for any link, then come back to validate, size and color-check it.
Need a code, not a tool?
Head to the generator to make a beautiful, branded QR code for any link, then come back to validate and size it.
Make a QR code