What is Base64?
Base64 is a scheme that represents binary data as transport-safe ASCII text. It's used to embed small images in HTML or CSS (data URIs), encode token payloads, in the basic authentication header, and in email attachments. This tool encodes and decodes UTF-8 text both ways instantly.
Type or paste the content and switch between text and Base64 with one click. It's handy for quickly inspecting an encoded string, generating a data URI, or preparing credentials for an Authorization header. Since everything is processed locally, it's safe for private values.
Frequently asked questions
Is it free?
Yes, all NewKit tools are completely free.
Is my data sent to a server?
No. Processing happens 100% in your browser, so it is safe even for sensitive data.