Base64 is a way to represent data as plain text. It is often used when a system needs to move binary data, tokens or small files through places that expect normal characters.
Use the Base64 Encode/Decode Tool when you need to convert text to Base64 or decode a Base64 string back into readable text.
Base64 is not encryption
A common mistake is treating Base64 as security. It only changes representation. Anyone can decode it if they have the string.
Where you see it
You may see Base64 in API examples, data URLs, credentials, email formats and small embedded assets. It is a transport format, not a sign that something is private.
When to be careful
Do not paste secrets into random tools. For safe local text conversions, keep the content simple and avoid sharing sensitive keys or credentials.
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