Base64 Encoder & Decoder
Encode plain text to Base64 or decode Base64 strings with UTF-8 support.
Overview
Encode and decode Base64 strings reliably. Handles Unicode and UTF-8 special characters without corruption, ideal for API headers, authentication tokens, and web data.
Base64 Text Encoder & Decoder (RFC 4648)
The Base64 tool converts strings and binary into standard Base64 characters and vice versa with full UTF-8 international character compatibility.
How to Encode and Decode Base64
Fast & IntuitivePaste Text Payload
Input plaintext or encoded Base64.
Toggle Encode / Decode
Click your target operation button.
Copy Clean String
Export output immediately to clipboard.
Key Highlights & Advantages
Zero server uploads. Everything processes securely within your local browser memory.
Immediate results with no file upload or download queues.
No registration, no paywalls, and no hidden quotas.
Seamlessly optimized for mobile smartphones, tablets, and desktop workstations.
All data processing runs natively via W3C compliant browser hardware acceleration.
- Generate HTTP Basic Authentication header values by encoding `username:password`.
Related Guides
Frequently Asked Questions
1 Q&AsIs Base64 considered secure encryption?
No. Base64 is an encoding scheme for safe ASCII data transit, not cryptographic protection.
Related Tools
URL Encoder & Decoder
Encode text for URI components or decode percent-encoded URLs instantly.
JWT Token Decoder
Inspect JWT header and payload claims securely in your browser without transmitting tokens.