Base64 for API Authentication
HTTP Basic Authentication requires encoding username:password in Base64. Our tool generates the complete Authorization header ready to copy into your API client, cURL command, or code.
Open Base64 Encoder/Decoder Free →Features
- Generate Basic Auth headers
- Format: username:password → Base64
- Copy complete Authorization header
- Ready for cURL, Postman, code
- Supports special characters
- Private — no data sent to servers
How It Works
1
Open the Tool
Go to Base64 Encoder/Decoder
2
Use for Free
No signup, works in your browser
3
Download Result
Get your output instantly
Need Unlimited Usage?
Free plan includes 5 uses per day. Upgrade to Pro for unlimited usage, no ads, batch processing, and API access.
Upgrade to Pro — $9/mo