Base64 Decoder

Decode Base64 strings, tokens, and authorization headers back into readable UTF-8 plain text.

How to Use Base64 Decoder

Input your Base64 encoded payload.

Instant conversion restores plain text characters.

Copy decoded message with one click.

Developers decoding authorization tokens, debuggers inspecting base64 payloads, and security researchers.

Decodes standard and URL-safe Base64 encoded strings.

Does this handle UTF-8 accented characters and emojis?

Yes! Our decoder fully supports multibyte UTF-8 characters, symbols, and emojis.

Is my source code, JSON, or payload data sent to external servers?

Can I convert multiple files in batch at the same time?

What is the maximum file size limit for Base64 Decoder?

Is Base64 Decoder safe and secure for sensitive or confidential files?

Do I need to install any software, browser extensions, or plugins?

Decode percent-encoded (%20, %26, %3D) URLs and query parameters back into human-readable text.

Prettify, validate, format, and indent JSON data with custom spacing and instant syntax highlighting.

Escape special HTML characters (&, <, >, ", ') into HTML entities to prevent XSS attacks and rendering issues.

Validate JSON syntax in real-time, detect missing quotes, unclosed brackets, trailing commas, and inspect payload schemas.