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Basic Auth Header Generator

Network & Ops · Free Online Tool

Generate Authorization: Basic header from username/password.

By EZ4Code Team
Authorization Header

Authorization: Basic YWRtaW46czNjcmV0

Basic Auth sends credentials as a Base64-encoded string that is trivially decodable. Always pair it with HTTPS — never with plain HTTP.

Base64 Encoding

Uses native btoa to encode user:pass.

Ready-to-use Header

Output includes the full Authorization: prefix — paste into curl or fetch.

One-click Copy

Copy the header to clipboard instantly.

How to Use Basic Auth Header Generator

  1. 1Enter the URL, IP address, or network parameter to look up.
  2. 2Click the lookup or test button.
  3. 3Review the detailed results in the output panel.
  4. 4Use the information for your network operations.

Features

  • ✓100% free — no signup, no subscription, no ads
  • ✓Runs entirely in your browser — data never leaves your device
  • ✓Fast and lightweight — instant results
  • ✓Cross-platform — works on desktop, tablet, and mobile

Frequently Asked Questions

Are network lookups real-time?

Yes, IP lookups, DNS queries, and HTTP tests perform live network requests to provide current data.

Is my IP address logged?

The IP Lookup tool queries public geolocation APIs. We do not store your IP address or lookup history.

Why do geolocation results differ between providers?

Each provider maintains its own IP-to-location database with different update cycles and coverage. Treat any single result as an approximation, not an exact address.

Do the results reflect me if I use a proxy or VPN?

No. Results show the egress IP of the proxy or VPN you are connected through. Disconnect it if you need your real public IP.

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