Base64 Encoder
Paste text on the left and get Base64 output on the right.
What is Base64 Encoder?
Base64 Encoder is a secure online tool that converts text, binary data, or files into Base64 encoded format. Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format using 64 different characters (A-Z, a-z, 0-9, +, and /).
This encoding method is widely used in web development, email systems, and data transmission protocols where binary data needs to be stored or transferred as text. Our encoder processes data locally in your browser, ensuring complete privacy and security of your information.
Base64 encoding is essential for embedding images in HTML/CSS, storing binary data in JSON, transmitting files over text-based protocols, and many other web development and data processing tasks.
What Problems Does It Solve?
Binary Data Transmission
Enables safe transmission of binary files and data through text-based protocols like HTTP, email, and JSON APIs.
Data URL Creation
Creates data URLs for embedding images, fonts, and other resources directly into HTML and CSS without external files.
API Integration
Prepares binary data for JSON APIs and web services that require text-based data formats for file uploads and transfers.
Data Storage
Allows storage of binary data in text-based databases and configuration files that don't support binary formats.
How to Use Base64 Encoder
Input Your Data
Paste or type your text content into the left panel. This can be plain text, JSON data, HTML content, or any other text-based information you want to encode.
Automatic Encoding
The tool automatically converts your input to Base64 format in real-time. The encoded result appears in the right panel as you type or paste content.
Copy & Use
Copy the generated Base64 string from the right panel and use it in your applications, APIs, data URLs, or any other context that requires Base64 encoding.
Base64 Encoding Best Practices:
- • Use Base64 encoding for small to medium-sized files; large files may impact performance
- • Remember that Base64 encoding increases data size by approximately 33%
- • Always validate Base64 strings before decoding to prevent errors
- • Use Base64 for data URLs in CSS and HTML for embedding small images and fonts
- • Consider using Base64 for API payloads when binary data needs to be transmitted as text
- • Be aware that Base64 is not encryption - it's encoding, so don't use it for security purposes
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