Base64 Converter
Encode text/files to Base64 or decode Base64 strings.
Base64 Encoder & Decoder
Encode text or files to Base64 format, or decode Base64 strings instantly. Perfect for developers working with APIs, data URLs, and file encoding.
Powerful Features
Bidirectional Conversion
Switch seamlessly between encoding and decoding modes
File Support
Upload and encode files directly to Base64 format
Real-time Processing
Instant encoding/decoding as you type
Data URL Support
Generate complete data URLs for images and files
One-Click Copy
Quickly copy encoded/decoded results to clipboard
Completely Private
All processing happens locally - no file uploads to servers
How It Works
Select Mode
Choose "Encode" to convert text/files to Base64, or "Decode" to convert back
Input Data
Type text, upload a file, or paste Base64 string
View Results
See the encoded/decoded result instantly in the output area
Copy and Use
Click the copy button to save the result to your clipboard
What is Base64?
Base64 is an encoding scheme that converts binary data into ASCII characters, making it safe for transmission over text-based protocols. It's commonly used in email attachments (MIME), data URLs for images in HTML/CSS, and API responses containing binary data.
Perfect For
Essential encoding tool for modern web development
🖼️ Data URLs
Embedding images in HTML/CSS
🔌 API Requests
Encoding files for API transmission
📊 JSON Data
Converting binary data for JSON
📧 Email Attachments
MIME encoding for emails
💾 Data Storage
Storing files in databases
🔑 Tokens
Authentication tokens and API keys
Common problems this tool solves
How to Convert an Image to Base64 String
Embed images directly in your CSS or HTML. Learn how to turn small icons and graphics into Base64 strings to reduce HTTP requests.
How to Decode Base64 to Plain Text
Convert Base64 strings back into readable human text. Easily inspect tokens, credentials, and data blobs with our decoder.
How to Encode Text to Base64 Online
Convert plain text into Base64 format for secure data transmission and embedding. Fast, reliable, and secure online encoder.
Save Bandwidth by Using Base64 Images Online
Reduce HTTP requests by embedding small images directly into your CSS or HTML using Base64 strings. Perfect for icons and logos.