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Base64 Encoder/Decoder

Encode and decode Base64 strings, files, and images. Perfect for developers, API testing, and data URIs.

⚡ Instant Conversion 🔒 Privacy First 💻 Developer Friendly

Input Type

Input Text

0 characters

Output (Base64)

0 characters

📤 Encode Mode: Upload any file to convert it to Base64 string

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Drop your file here

or click to select a file

Supports any file type

Quick Examples

💡 About Base64

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What is Base64?

Encoding scheme to represent binary data in ASCII text format

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Common Uses

Data URIs, API requests, email attachments, JWT tokens

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Web Safe

Safely transmit data over text-based protocols

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Size Increase

Base64 encoded data is ~33% larger

💡 Pro Tips

Base64 is NOT encryption - data is easily decoded
Perfect for embedding small images in HTML/CSS
Used in data URIs: data:image/png;base64,...
Common in JWT tokens and API authentication
Safe for URLs and email transmission

🎯 Use Cases

Encode images for data URIs
API request/response payloads
Email attachments (MIME)
Store binary data in JSON
Embed fonts and files in CSS