Supports UTF-8 text encoding and decoding with secure browser-based conversion. No data is uploaded to any server.
Tip: Base64 is encoding, not encryption. Do not use it as a security mechanism.
Supports UTF-8 text encoding and decoding with secure browser-based conversion. No data is uploaded to any server.
Instant Base64 encoding and decoding.
Everything works securely in browser.
Copy output instantly with one click.
Supports advanced text characters.
Base64 Encoder Decoder converts plain text into Base64 format, or decodes Base64 back into readable text, entirely inside your browser. It's commonly used for embedding data in URLs, JSON payloads, email attachments and configuration files where binary-safe text is required.
Yes! Base64 Encoder Decoder is 100% free with no registration required.
No. All encoding and decoding happens entirely in your browser — nothing is sent to a server.
No. Base64 is an encoding scheme, not encryption — anyone can decode it, so it should never be used to protect sensitive data.
Yes, special characters and multi-byte UTF-8 text are fully supported.