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Free online QR Code/Barcode generator, supporting 9 QR Code types and 6 barcode formats, customizable colors, styles and Logo, batch generation with ZIP download, ready to use without registration.
QR Code is a 2D matrix code that can store more data (URLs, text, contact info etc.) with strong error correction, suitable for marketing, WiFi connection, vCard sharing, payment codes and more. Barcode is a 1D code that only stores numbers and a small number of characters with fast scanning speed, widely used in retail (EAN-13/UPC), logistics (CODE128), library management and other scenarios. This tool supports both QR Code and barcode generation in one page.
Yes. Select the "WiFi" type, enter WiFi name (SSID), password and encryption method (WPA/WPA2/WEP/No password). After generation, scan with your phone camera to connect to WiFi automatically without manually entering the password. For hidden networks, check the "Hidden Network" option. Perfect for restaurants, hotels, cafes, meeting rooms and other places to display on the wall for guests.
Yes. This tool supports custom foreground and background colors (12 preset colors + color picker for free selection), gradient effects, 3 dot styles (square/rounded/dots), and you can upload a custom Logo image to place in the center of the QR Code, with adjustable Logo size and corner radius. Note: When adding a Logo, it is recommended to set the error correction level to H (30%) to ensure scanning success rate.
QR Code error correction level indicates the ability to be correctly recognized even when part of the area is blocked or damaged: Level L (7%) for clean QR Codes without obstruction; Level M (15% default) for general use; Level Q (25%) for small Logos; Level H (30%) for large center Logos or scenarios where printing may be damaged. Higher error correction levels result in more complex QR Codes with denser dots. If adding a center Logo, H level is recommended.
Yes. Under URL and Text types, check "Batch Mode", enter one URL or piece of text per line. The tool will automatically generate corresponding QR Codes/barcodes line by line. After generation, click "Download ZIP" to batch download all images. Batch mode supports URL and text QR Codes, as well as all types of barcodes, ideal for batch production of store product labels, event links, employee business cards and more.
They don't expire. This tool generates static QR Codes with content directly encoded in the image, independent of any server, permanently valid. If scanning fails, check: 1) Is the content too long (QR Codes have limited capacity, URLs should be as short as possible); 2) Is the Logo too large covering too many dots; 3) Is the error correction level high enough; 4) Is there enough Quiet Zone when printing; 5) Is there sufficient contrast (large color difference between foreground and background).
Supports CODE128 (most universal, supports alphanumeric, commonly used in logistics/warehousing), EAN-13 (13-digit international retail barcode), EAN-8 (8-digit shortened retail barcode), UPC-A (12-digit North American retail barcode), CODE39 (commonly used in industrial/military fields), ITF-14 (14-digit logistics carton code). EAN-13 requires 13 digits of pure numbers, UPC-A requires 12 digits, CODE128 supports any alphanumeric characters and symbols.
QR Code (Quick Response Code) is a type of 2D matrix barcode invented in 1994 by Denso Wave (a subsidiary of Toyota automotive component supplier Denso) in Japan. Originally used for tracking parts in automotive manufacturing, it became widely used across various fields due to fast scanning speed, large storage capacity, and strong error correction capability. QR Codes consist of black and white square modules (dots) with position detection markers (large squares) at three corners, allowing scanners to quickly recognize from any angle.
Compared to traditional 1D barcodes, QR Codes have much larger data capacity: up to 7089 numeric characters, 4296 alphanumeric characters, 2953 bytes of binary data, and approximately 984 Chinese characters (UTF-8). QR Codes have 4 error correction levels (L/M/Q/H), and can be correctly read even when up to 30% of the code surface is blocked or damaged — this is why Logos can be placed in the center of QR Codes.
QR Codes have become infrastructure for the mobile internet: payment scanning (WeChat Pay/Alipay), WiFi connection, vCard exchange, URL sharing, event check-in, product traceability, e-ticketing, menu ordering and more are almost ubiquitous. This tool generates standard QR Codes compatible with all mainstream phone cameras and scanning apps.
| Error Level | Recovery Rate | Dot Density | Use Scenario |
|---|---|---|---|
L (7%) | Up to 7% damage recoverable | Lowest (simplest) | Clean environments, no obstruction, screen display |
M (15%) | Up to 15% damage recoverable | Lower | General printing, posters, regular use (default recommended) |
Q (25%) | Up to 25% damage recoverable | Higher | With small Logo, potential minor damage |
H (30%) | Up to 30% damage recoverable | Highest (most complex) | Center Logo placement, industrial environments, outdoor printing |
| Format | Character Type | Length Requirement | Typical Usage |
|---|---|---|---|
CODE128 | Letters + numbers + symbols | Any length | Logistics, warehousing, asset labels, internal management |
EAN-13 | Numbers only | Fixed 13 digits | International retail product barcodes (global standard) |
EAN-8 | Numbers only | Fixed 8 digits | Shortened barcodes for small products (e.g., chewing gum) |
UPC-A | Numbers only | Fixed 12 digits | US/Canada retail product barcodes |
CODE39 | Uppercase letters + numbers + few symbols | Variable length | Industrial, military, medical, library management |
ITF-14 | Numbers only | Fixed 14 digits | Logistics outer carton/container barcodes |
