Base64 Encoder
Encode text to Base64 directly in your browser.
About this tool
Convert text to Base64 in your browser. Your text is not intentionally sent to a server for encoding.
How to use it
- Enter or paste text.
- Click Encode.
- Copy the Base64 result.
What is Base64?
Base64 is an encoding format that represents binary data as text using a limited set of characters. It is commonly used when data needs to travel through systems that are designed for text.
Base64 encoding is not encryption and does not protect sensitive information. Anyone who has the encoded value can decode it. For decoding, use ToolAlto's Base64 Decoder.
Common uses
- Representing small binary values in text-based formats.
- Embedding data in APIs, JSON, HTML, CSS, or configuration files.
- Testing and troubleshooting encoded values during development.
Frequently asked questions
Does Base64 encrypt text?
No. Base64 is an encoding scheme, not encryption. It should not be used to hide passwords, keys, or other confidential data.
Does this encoder support Unicode text?
Yes. The encoder converts ordinary Unicode text to UTF-8 before creating the Base64 representation.
Is my text uploaded?
No. Encoding is performed in your browser, so the text is not intentionally sent to a ToolAlto server for encoding.
Base64 guides
Learn what Base64 is, how encoding differs from encryption, how Unicode text is handled, and when Base64 is useful in the Base64 Encoder and Decoder guide.
For practical decoding examples with text, URLs, Unicode, and UTF-8, see Base64 Decode Examples.