The Code Plaza — Free QR, Barcode, Dialing & ZIP Code Tools

TheCodePlaza brings together free QR and barcode tools, phone and postal references, and network utilities. Some code processing runs in the browser; live lookups and network tests send requests to external providers or TheCodePlaza’s service. No account is required.

Free Online Tools

• QR Code Generator — Create custom QR codes for URLs, text, email addresses, phone numbers, Wi-Fi networks, vCard contacts, and more. Download as PNG or SVG instantly.
• QR Code Scanner — Upload an image or use your live camera to decode any QR code in seconds. Supports URLs, Wi-Fi credentials, SMS, and vCard formats. No app required.
• Barcode Generator — Generate Code128, EAN-13, EAN-8, UPC-A, Code39, ITF-14, and more barcode formats. Download as PNG or SVG for printing and inventory use.
• Barcode Scanner — Read barcodes from uploaded images or your live camera. Supports EAN, UPC, Code 128, QR Code, Data Matrix, and 14 other barcode standards.
• Country Dialing Codes — Find the international dialing code for any of 224 countries and territories. Search by country name or code, copy instantly, and look up city area codes.
• USA Area Codes — Complete directory of all 324 active US area codes. Search by city or state. Covers every code in the North American Numbering Plan (NANP).
• International Postal Codes — Look up postal code formats for 100+ countries worldwide. Find the correct postcode format before filling international shipping forms.
• USA ZIP Code Lookup — Request the place names and coordinates associated with a five-digit ZIP code from an external lookup service. Verify delivery details with USPS.
• What is My IP Address — See your public IPv4 and IPv6 address along with your approximate location, ISP, ASN, and timezone. Free and no sign-up required.
• Internet Speed Test — Test your broadband download speed, upload speed, and ping latency directly in your browser. No plugins or apps needed.
• Who Called Me — Check a phone number’s format, numbering-plan country, and available area-code details. It does not identify a subscriber or current caller location.

Guides and Data Sources

Read practical tool guides, learn about the site on About TheCodePlaza, and see how local reference data and live lookups work on Sources & Methodology. Review the Privacy Policy for analytics and network-request information.