Base64 Encoder & Decoder

Convert text to Base64 encoding or decode Base64 strings instantly with our free online tool

Convert:

Actions:

What is Base64 Encoding?

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used to encode data that needs to be stored or transferred over media designed to handle text. Base64 encoding converts binary data into a set of 64 different ASCII characters, making it safe for transmission across systems that only support text.

Common uses include encoding email attachments, embedding images in HTML/CSS as data URLs, transferring binary data in JSON or XML payloads, and encoding credentials for Basic HTTP Authentication.

How to Use This Tool

1

Enter Your Text

Type or paste the text you want to encode or the Base64 string you want to decode into the input field.

2

Choose Operation

Click "Encode to Base64" to convert text to Base64, or "Decode from Base64" to convert Base64 back to text.

3

Get Instant Results

Your converted text appears immediately in the result field below.

4

Copy & Use

Click "Copy Result" to copy the converted text to your clipboard for immediate use.

Common Use Cases

Web Development

Embed images directly in CSS or HTML using data URLs (data:image/png;base64,...)

API Development

Transfer binary data in JSON payloads or encode authentication tokens

Email Systems

Encode attachments for MIME email transmission

Data Storage

Store binary data in text-based databases or configuration files

Why Use Our Base64 Tool?

  • Instant Conversion: Encode and decode Base64 strings in real-time with no delays
  • 100% Client-Side: All conversions happen in your browser - your data never leaves your device
  • Completely Free: No registration, no limits, no hidden fees - use it as much as you need
  • Easy to Use: Simple interface with clear buttons - no technical knowledge required
  • Mobile Friendly: Works perfectly on all devices - desktop, tablet, and mobile
  • Copy with One Click: Quickly copy results to clipboard for immediate use in your projects

Start Converting Now

Whether you're a developer working with APIs, a designer embedding images, or anyone needing to encode or decode Base64 data, our tool makes it simple and fast. Try it now - it's completely free and requires no registration!