Scan & Generate
Free QR Code & Barcode Tools
Generate QR codes, validate barcodes, and encode data — all free, instant, and private. Nothing is uploaded to any server.
QR Code Color Contrast Checker
Check whether two colours give a QR code enough contrast to scan. Graded the way barcode verifiers grade, not by web accessibility ratios.
QR Code Link Checker
Paste the link from a QR code and see the domain it really opens, with every trick used to disguise it explained.
QR Code Print Size Calculator
Work out how large to print a QR code from its content, error correction level and the distance people will scan it from.
Boarding Pass Barcode Decoder
Decode the barcode on an airline boarding pass and see every field it carries, including the ones you would not want to share.
GS1 Barcode Decoder
Paste the raw output of a GS1 DataMatrix or GS1-128 scan and see every Application Identifier decoded, with check digits and dates validated.
WhatsApp QR Code Generator
Create a QR code that opens a WhatsApp chat with your number and a pre-filled message. Build a wa.me click-to-chat code and download it free.
GS1 Digital Link QR Code Generator
Turn a GTIN into a GS1 Digital Link QR code with batch, expiry, and serial number. Built for retail 2D barcodes, GS1 Sunrise 2027, and the EU Digital Product Passport.
Google Review QR Code Generator
Create a free QR code that opens your Google "Write a review" page in one scan. Paste your review link or Place ID and download instantly.
Regex Tester
Test and debug regular expressions in real time. See matches highlighted, capture groups listed, and get plain-English explanations.
EAN-13 Barcode Generator
Generate EAN-13 and UPC-A barcodes from any 12-digit number. Auto-calculates check digit. Download as PNG for product labeling.
QR Code Capacity Calculator
Calculate exactly how much data a QR code can store. Compare versions, error correction levels, and data types side-by-side.
UTM Link Builder
Build UTM-tagged URLs for Google Analytics campaign tracking. Add source, medium, campaign, term, and content parameters.
Password Generator
Generate strong, random passwords instantly. Choose length, uppercase, lowercase, numbers, and symbols. Copy or encode as a QR code.
Word & Character Counter
Count words, characters, sentences, and paragraphs in your text. Check reading time and QR code data capacity.
UUID Generator
Generate random UUID v4 identifiers instantly. Bulk generate, copy, and use for databases, APIs, and testing.
JSON Formatter & Validator
Format, validate, and pretty-print JSON data online. Minify or beautify JSON with syntax highlighting.
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text. Free online hash tool for developers.
Lorem Ipsum Generator
Generate lorem ipsum placeholder text in paragraphs, sentences, or words. Great for testing QR code capacity.
Text to Binary Converter
Convert text to binary (0s and 1s) or decode binary back to readable text. See how data is encoded at the lowest level.
Color Code Converter
Convert colors between HEX, RGB, and HSL formats. Preview colors and copy values for styling QR codes.
URL Encoder / Decoder
Encode special characters in URLs or decode percent-encoded strings. Essential for building QR codes with URLs.
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 strings back to plain text. Useful for data encoding and debugging.
Barcode Lookup & Validator
Validate EAN-13, UPC-A, ISBN, and other barcode formats. Check digit verification and format detection.
vCard QR Code Generator
Generate a QR code with your contact details. Scan to add name, phone, email, and address to any phone.
WiFi QR Code Generator
Create a QR code for your WiFi network. Guests can scan to connect instantly — no password typing needed.
QR Code Generator
Generate QR codes from any text, URL, email, or phone number. Download as PNG instantly.
Need More Power? Get the App
The Scan & Generate app offers camera scanning, batch generation, scan history, CSV export, and backup — all from your phone.