What is a text to Base64 encoder?
A text to Base64 encoder converts UTF-8 text into an ASCII-safe string. It is useful when plain text must travel through JSON, XML, URLs, headers, email, or systems that are sensitive to special characters.
How to use it
- Paste or type the text you want to encode.
- Choose standard Base64 or URL-safe Base64URL.
- Keep padding unless your target system specifically expects unpadded Base64URL.
Example
Input: Hello, World!
Output: SGVsbG8sIFdvcmxkIQ==
Common mistakes
- Base64 is encoding, not encryption. Anyone with the string can decode it.
- Base64 output is larger than the original bytes, usually by about one third.
- Use Base64URL for URL or token contexts where
+,/, and=can cause escaping issues.
Related tools
- Decode the result with Base64 to text.
- Encode URLs with URL to Base64.
- Validate output with the Base64 validator.
Privacy and security
Encoding runs locally in your browser. Avoid pasting production secrets unless you are comfortable handling the decoded value on this device.