Base64 Encoder
Encode any text string into Base64 format instantly, commonly needed for embedding data in URLs, emails, or config files.
About this base64 encoder
Base64 is a standard way to represent binary or text data using only safe, printable characters, widely used in email attachments, data URLs, and API authentication headers.
How base64 encoder works
Your text is converted to Base64 using the standard encoding algorithm, representing every 3 bytes of input as 4 printable characters.
Common uses
- Encoding a string for use in a data URL
- Preparing a value for an API authentication header
- Embedding binary-safe text in a config or script
How to use this tool
- Enter your text.
- Click Process.
- Copy the Base64-encoded result.
What to know before using it
Base64 is an encoding, not encryption, it provides no security or privacy on its own, anyone can decode it back to the original text instantly.
Privacy and browser-first processing
Your text is encoded entirely in your browser and is never uploaded or stored.
Frequently asked questions
Is Base64 encryption?
No, Base64 is just an encoding scheme for representing data as text, it provides no security, anyone can decode it instantly with the matching decoder.