String to Base64 Converter - Encode Text to Base64 Online
Convert plain text strings to Base64 encoded format instantly. Encode text to Base64 for data transmission and storage. Free online String to Base64 encoder.
Loading tool...
How to Convert String to Base64 - Step by Step Guide
Enter Your Text
Start by typing or pasting your plain text string into the input area that you want to encode to Base64.
Automatic Encoding
The tool automatically encodes your text to Base64 format as you type. The encoded result appears instantly.
Copy or Download Result
Once encoded, you can copy the Base64 string to your clipboard or download it for use in your projects.
What is String to Base64 Encoding?
String to Base64 encoding converts plain text into Base64 format, enabling safe transmission through REST APIs, HTTP headers, and email systems.
The encoding uses the browser's btoa() function with full support for UTF-8 encoding, ensuring international characters work properly with Unicode support.
Frequently Asked Questions
How do I encode a string to Base64?
Simply type or paste your text into the input field. The tool automatically encodes it to Base64 format in real-time. You can then copy or download the encoded result.
Why encode strings to Base64?
Base64 encoding converts text to a format safe for transmission through systems that only handle ASCII. It's commonly used in APIs, email attachments, and data storage.
Is this String to Base64 encoder secure?
Yes, completely secure. All encoding happens entirely in your browser using client-side JavaScript. Your data never leaves your device.
Does it support Unicode characters?
Yes! The encoder fully supports Unicode characters from all languages. Text is converted to UTF-8 before Base64 encoding, ensuring international character compatibility.
Is this converter free?
Yes, completely free with no size limits, no registration required, and unlimited conversions with full privacy protection.
Related Tools
Base64 to String
Decode Base64 encoded data to plain text strings for debugging and analysis
String to JSON
Convert string to JSON format
JSON to String
Convert JSON to escaped string format
Convert String to JSON
Convert escaped JSON strings to properly formatted JSON objects
Base64 Validator
Validate Base64 encoded strings with detailed format checking and content type detection
Image to Base64
Convert images to Base64 encoded strings for embedding in HTML, CSS, and APIs