QR & Barcode Generator
Generate QR codes for URLs, text, Wi-Fi, and contact cards plus common barcodes locally in the browser.
QR and barcode generation are separate. QR supports URL, text, Wi‑Fi, contact card, email, SMS, phone, geo, event, colors, quiet zone, error correction, and optional centered logo. Use high error correction (H) when adding a logo.
This tool runs in your browser. Inputs stay local and are not sent to any server.
How to use this result
QR codes are useful when a user must move from offline material to a URL, Wi-Fi profile, contact card, or text payload without retyping. Barcodes are useful for labels, inventory, and scan-first workflows.
The generator produces codes in the browser and lets you download image assets for print or digital use. It does not shorten URLs, track scans, or create analytics links by itself.
Barcode formats have strict length and character rules. A value that renders visually may still be invalid for a retailer, payment provider, or scanner workflow if the format assumptions are wrong.
Always test with the real devices and apps that will scan the code. Printing size, contrast, quiet zone, paper finish, and camera quality can all affect scan reliability.
Examples
Wi-Fi QR
Event link
Inventory label
Common questions
Q.Are values uploaded?
No. Generation is local in the browser.
Q.Can I use this for payments or product labels?
Only after testing with the real payment app, POS system, or scanner. This tool creates the visual code, not a certified payment or retail workflow.
Q.Does this track QR scans?
No. To track scans you would need a separate redirect or analytics service, which changes the privacy model.
Before using QR/Barcode
When it helps
QR/Barcode is useful when files, images, and PDFs need format, size, privacy, or sharing checks before they are uploaded elsewhere. It is designed for situations like turning SSID and password into Scannable QR code without leaving the browser workflow.
Suggested workflow
The basic workflow is simple: enter QR content, adjust Barcode value when needed, and review QR SVG/PNG. Before relying on the result, check the units, date, file type, rounding basis, or other assumptions that may change the outcome.
How to verify results
QR/Barcode is a supporting utility for quick judgment. If the result affects contracts, filings, payments, security, customer data, or other important decisions, verify it against official sources, source systems, internal policy, or qualified review.
Data handling notice
Browser-local processing: the main calculation or conversion runs in your browser.
No server storage: except for UI preferences such as favorites, ZHS does not store your input files or text on the server.
Sensitive-data caution: even with local processing, avoid entering production secrets, national IDs, financial data, or raw customer data into public web tools.