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

Your all-in-one hub for free online code tools. Generate and scan QR codes and barcodes, look up international dialing codes for any country, search global ZIP and postal codes, identify your public IP address, and test your internet speed — all without sign-up or any app 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 — Instantly look up any of the 42,000+ active US ZIP codes with city name, state, county, and GPS coordinates.
• 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 — Enter any international phone number to identify its country, area code, and city of origin. Works with numbers from 200+ countries.

Why Use TheCodePlaza.com?

All tools on TheCodePlaza.com run entirely in your browser — no data is uploaded to any server, ensuring complete privacy. Every tool is free, works on desktop and mobile, and requires no account or registration. Results are delivered instantly.