Free tools
Base64 Encode
Free online Base64 encoder — paste any text and instantly get the Base64-encoded output.
Base64 result
Base64 Encode Online
Need to encode text as a Base64 string? Paste any plain text into the field above and click Encode to Base64. The result appears instantly — no page reload, no server round-trip.
What Is Base64?
Base64 is an encoding scheme that converts binary or text data into a string of 64 printable ASCII characters (A–Z, a–z, 0–9, +, and /). It is commonly used to safely embed binary data — such as images or file contents — inside JSON payloads, HTML, URLs, and email attachments.
Common Uses
- Encoding credentials for HTTP Basic Authentication headers
- Embedding small images as
data:URIs in HTML or CSS - Passing binary data through APIs that only accept text
- Encoding configuration values or secrets in environment variables
How to Use This Tool
- Paste your plain text into the input field.
- Click Encode to Base64.
- Copy the result with the copy button.
Everything runs in your browser — your text is never sent to any server.