Is Base64 encryption?

No. Base64 is an encoding format designed for safe data transmission, not encryption. Anyone can decode a Base64 string.

Does it support international characters and emojis?

Yes, our encoder uses UTF-8 byte encoding before Base64 transformation, preventing character corruption.

Dev Tools

Base64 Encoder

Encode and decode Base64 strings online.

100% Private & Client-Side Execution

All encoding operations occur locally. Credentials and secrets are never sent to a server.

About Base64 Encoder

Base64 Encoder translates standard UTF-8 text into ASCII-compatible Base64 strings and reverses Base64 ciphertext back into original human-readable text.

How to Use Base64 Encoder

Select Encode or Decode mode using the toggle button.
Type or paste your text in the input textarea.
The converted Base64 output is computed in real time.
Click Copy to copy the result to your clipboard.

Common Real-World Use Cases

Web Developers: Encode basic auth credentials (username:password) for HTTP headers.
Security Engineers: Inspect encoded data payloads in JWT tokens and web cookies.
Data Integrators: Pass binary or complex UTF-8 characters safely through text-only transmission channels.

Technical Specifications & Limitations

Fully supports international UTF-8 characters and multi-byte strings.

Frequently Asked Questions

Is Base64 encryption?: No. Base64 is an encoding format designed for safe data transmission, not encryption. Anyone can decode a Base64 string.
Does it support international characters and emojis?: Yes, our encoder uses UTF-8 byte encoding before Base64 transformation, preventing character corruption.