Base64 Encoder/Decoder

What is Base64 Encoding?

Base64 is an encoding scheme that converts binary data into ASCII text format. It's commonly used to encode data that needs to be transferred over text-based protocols like email or JSON. Base64 uses 64 characters (A-Z, a-z, 0-9, +, /) to represent binary data.

When Do You Need Base64?

• Email Attachments: MIME protocol uses Base64 to encode binary files
• Data URLs: Embed images directly in HTML/CSS (data:image/png;base64,...)
• JSON/XML: Transfer binary data in text-based formats
• Authentication: Basic HTTP authentication uses Base64
• Tokens: JWT tokens often use Base64URL encoding

How to Use This Tool

To Encode:

1. Paste your text in the left box
2. Click "Encode to Base64"
3. Copy the Base64 string from the right box

To Decode:

1. Paste your Base64 string in the left box
2. Click "Decode from Base64"
3. Read the decoded text in the right box

Why Choose Our Base64 Tool?

• ✅ 100% Client-Side: No data sent to servers
• ✅ UTF-8 Support: Handles all Unicode characters correctly
• ✅ Instant Processing: Real-time encoding/decoding
• ✅ Free & No Limits: Encode unlimited text

Related Tools

• URL Encoder/Decoder - Encode URLs and query parameters
• Hex Converter - Convert hex to text
• Unicode Escape Tool - Handle Unicode escapes