About This Site
Last updated: 2026-06-25
QR Generator is a free collection of tools that create QR codes, WiFi QR codes, and CODE128 barcodes.
Every code is generated by our own encoder - implemented with no external library - inside your browser, and your input is never sent to or stored on a server.
What QR Generator Is
QR Generator (qr.moneycomon.com) is a free collection of tools that helps small business owners, marketers, and office workers create the QR codes and barcodes they need every day quickly and accurately. You can create QR codes for text and URLs, WiFi QR codes that connect on a single scan, and CODE128 barcodes for inventory and invoices - all with no sign-up or install.
Operating Principles (E-E-A-T)
- Experience - We mirror the exact formats used in real store signage, marketing print, and inventory labels, so the output is ready to print and use right away.
- Expertise - QR codes are implemented per the ISO/IEC 18004 spec (byte mode, error correction level M, Reed-Solomon error correction), and barcodes per the CODE128 spec (check character modulo 103).
- Authoritativeness - We generate the matrix and bar patterns based on the official standards, and we explain the generation principles and limitations transparently on each tool page.
- Trustworthiness - We do not collect or store your input (URLs, WiFi passwords, etc.) and process everything inside your browser. We add no watermark to the output.
The Accuracy of Our Own Encoder
The core of QR Generator is an encoder we built ourselves, with no dependency on external CDNs or libraries. For QR codes, we encode the input as UTF-8, add the mode indicator, character count, and terminator pattern, compute Reed-Solomon error correction codes over GF(256), and interleave the data and error correction blocks. We then place the finder, alignment, and timing patterns, and pick the mask with the lowest penalty among eight masks to complete the matrix. For CODE128 barcodes, we use Code Set B by default but auto-compress runs of four or more digits to Code C, and we calculate the start/stop characters and check character per the spec.
This tool supports QR versions 1 to 10 (level M) and accurately stores Unicode such as non-Latin scripts and emoji, as well as long URLs. The output follows the standards so it can be read by ordinary smartphone cameras and standard scanners.
A Note on Accuracy
QR Generator's output is created per the official standards, but whether a real-world scan succeeds depends heavily on the print size, margin, contrast, material, scanner model, and other conditions. So before printing or distributing, always scan with a real device to confirm it works. This tool does not generate retail EAN-13/UPC barcodes; CODE128 is suitable for internal inventory, invoice, and asset management.
Contact
Send suggestions or bug reports to jin@zerolabskorea.com. For details on how we handle data, see the Privacy Policy.
Last updated: 2026-06-25