Base64 Encode/Decode
Encode and decode Base64 strings online. Supports text and UTF-8. Free browser-based tool.
What is Base64?
Base64 is a binary-to-text encoding scheme that represents binary data as ASCII strings. It's commonly used to embed images in HTML/CSS, encode email attachments, and transmit data in URLs and APIs.
Features
- Encode — Convert text to Base64
- Decode — Convert Base64 back to text
- UTF-8 support — Handles Unicode characters correctly
- Privacy — All processing happens in your browser
Tutorial
How to Encode Base64 Online: A Complete Guide
Learn how to encode and decode Base64 strings online in seconds. Step-by-step tutorial with real-world use cases for APIs, images, and email attachments.