QR Codes
Batch QR Code Generator
Paste a list of links or text, one per line, and generate a QR code for each. Preview every code, then download the whole batch as a ZIP file of PNGs or SVGs. Free, runs entirely in your browser.
Email & SMS QR Code Generator
Create a QR code that opens a pre-filled email, text message, or phone call when scanned. Free, downloads as PNG or SVG, everything runs in your browser.
Event QR Code Generator
Turn event details into a QR code that adds the event directly to someone's calendar app when scanned. Enter the title, location, and date/time, then download as PNG or SVG. Free, runs in your browser.
QR Code Generator
Turn any link or block of text into a QR code instantly. Choose an error correction level and download as PNG at any size or as SVG. Free, no signup, everything runs in your browser.
QR Code Logo Generator
Create a branded QR code with your logo in the center and custom colors. Choose a dot style, preview live, and download as PNG at any size or as SVG. Free, runs entirely in your browser.
QR Code Reader
Upload or paste an image of a QR code and instantly see what it contains. Automatically recognizes WiFi, contact card, calendar event, email, and link QR codes. Free, runs entirely in your browser — nothing is uploaded.
Social Media QR Code Generator
Create a QR code linking to your Instagram, TikTok, X, Facebook, YouTube, LinkedIn, or app store profile. Pick a platform, enter your handle, and download as PNG or SVG. Free, runs in your browser.
vCard QR Code Generator
Turn your contact details into a scannable QR code that saves directly to someone's phone contacts. Enter your name, phone, email, and more, then download as PNG or SVG. Free, runs entirely in your browser.
WiFi QR Code Generator
Create a QR code that connects a phone to your WiFi network automatically when scanned. Enter your network name and password, then download as PNG or SVG. Free, everything runs in your browser.
What Is a QR Code?
A QR (Quick Response) code is a two-dimensional barcode made up of a grid of black and white squares, called modules. Unlike a traditional barcode, which only stores a short string of numbers in one dimension, a QR code stores data in both directions at once — which is why a single code can hold a full web address, an entire WiFi password, or a contact card instead of just a product number.
QR codes were invented in 1994 by Masahiro Hara, an engineer at the Japanese company Denso Wave, to track automotive parts through the manufacturing process faster than the barcodes of the time allowed. Denso Wave deliberately left the format open and royalty-free, which is a big part of why QR codes spread far beyond factories into menus, packaging, boarding passes, and payment systems worldwide.
How Do QR Codes Work?
Every QR code is built from a handful of standard structural pieces that a scanner looks for before it even tries to read the actual data. The diagram below highlights each one on a simplified example code.
What Can a QR Code Store?
The grid size (called the "version," from 1 up to 40) determines how much data a code can hold — larger, denser grids store more information but require a bigger printed size to remain scannable. QR codes can encode a few different types of data:
| Encoding Mode | Stores | Approx. Max Capacity* |
|---|---|---|
| Numeric | Digits 0–9 only | ~7,000 characters |
| Alphanumeric | Digits, uppercase letters, and a few symbols | ~4,300 characters |
| Byte | Any text, URLs, or binary data (most common mode) | ~2,950 characters |
| Kanji | Japanese Kanji/Kana characters | ~1,800 characters |
*Maximum capacity at the largest QR version (40) with the lowest error correction level. Every tool on this page uses a much smaller, print-friendly version automatically based on your content — the tools below default to the "Byte" mode, which is what nearly all real-world links, text, and structured data (like WiFi credentials or contact cards) use.
Error Correction: Why QR Codes Still Scan When Damaged
QR codes use a form of math called Reed-Solomon error correction to add redundant data alongside your actual content. That's why a code can still scan perfectly even with a coffee stain, a scratch, or a logo placed in the middle — the scanner reconstructs the missing pieces from the redundant data instead of needing every module to be intact. There are four standard levels, each trading data capacity for damage tolerance: Low (~7% recoverable), Medium (~15%, the standard default), Quartile (~25%), and High (~30%, best for codes that will get dirty or include a logo). The QR Code Generator lets you choose the level directly, and the QR Code Logo Generator applies the High level automatically whenever you add a logo.
About These QR Code Tools
This collection of QR code generators and readers runs entirely in your browser — nothing you type, upload, or scan is ever sent to a server. Every generator below lets you preview your QR code before downloading it as a PNG at your chosen size or as a scalable SVG, so you always know exactly what you're getting before you print it on a flyer, menu, or business card.
Whether you need a quick QR code for a website link or something more specific — a WiFi network, a digital business card, a calendar invite, or a branded code with your logo in the center — there's a dedicated tool built for that exact format below.
QR Code Generator
The QR Code Generator is the fastest way to turn any link or block of text into a scannable QR code. Pick an error correction level, choose your download size, and export as PNG or SVG in seconds.
WiFi QR Code Generator
Stop reading your WiFi password out loud to every guest. The WiFi QR Code Generator builds a code that connects a phone to your network automatically the moment it's scanned with a camera app — no typing required.
QR Code with Logo Generator
Need something more polished than a plain black-and-white square? The QR Code Logo Generator embeds your logo in the center and lets you pick custom foreground and background colors while keeping the code fully scannable.
QR Code Reader
Already have a QR code as an image and just need to know what it says? The QR Code Reader decodes an uploaded or pasted image instantly, right in your browser.