Text to Base64
Free online Text to Base64 converter. Instantly encode plain text to Base64-encoded strings. Fast, secure, and easy to use. Perfect for developers and daily office tasks.
Text to Base64 Converter
About Text to Base64 Converter
Our free Text to Base64 Converter is a simple yet powerful tool that encodes plain text into Base64 format. Base64 encoding is widely used to transmit binary data or text containing special characters through systems that only support ASCII characters. This tool is essential for developers, system administrators, and anyone working with data encoding.
Why Use Base64 Encoding? Base64 encoding converts text into a safe ASCII format that can be transmitted over email, included in URLs, embedded in XML/JSON, or used in HTTP headers without corruption. It's commonly used for email attachments (MIME), basic authentication headers, data URIs, and embedding images in HTML/CSS. Our encoder handles UTF-8 text correctly, including special characters and emojis.
- Fast and accurate Base64 encoding in your browser.
- Support for UTF-8 text, including special characters and emojis.
- One-click copy to clipboard functionality.
- Instant encoding results as you type.
- Completely secure - processing happens locally in your browser.
Use this Base64 encoder whenever you need to safely transmit text through systems that only support ASCII characters. If you need to decode Base64 back to readable text, check out our companion Base64 to Text Converter tool. Perfect for developers, students, and IT professionals working with data encoding and transmission.
How to Use
How to encode text to Base64:
- Enter or paste your plain text into the "Input Text" textarea.
- Click the "Encode" button to convert the text to Base64 format.
- The encoded Base64 string will appear in the "Output" textarea.
- Use the "Copy Result" button to copy the Base64 string to your clipboard.
- Click "Clear" to reset both input and output fields for new conversions.
Note: Base64 encoding increases the text size by approximately 33%. The encoded output will be longer than your original input text.
Frequently Asked Questions
What is Base64 encoding?
Base64 is a binary-to-text encoding scheme that converts binary data into an ASCII string format. It uses 64 different characters (A-Z, a-z, 0-9, +, and /) to represent data, making it safe for transmission through text-based systems. Each group of 3 bytes (24 bits) is converted into 4 Base64 characters (6 bits each), with padding using the "=" character when needed.
When should I use Base64 encoding?
Use Base64 encoding when you need to transmit data through systems that only support ASCII characters, such as email (SMTP), URLs, HTTP headers, or XML/JSON documents. It's commonly used for email attachments, basic authentication credentials (Basic Auth), embedding images in HTML/CSS (data URIs), and storing complex data in cookies or tokens.
Does Base64 encoding secure my data?
No, Base64 is not encryption - it's only encoding. Anyone can easily decode Base64 back to its original form. Do not use Base64 to protect sensitive information like passwords or personal data. For security, use proper encryption methods like AES or RSA. Base64 is designed for safe transmission, not for data protection.
Why does the Base64 output have "=" signs at the end?
The "=" character is used as padding in Base64 encoding. Since Base64 works with groups of 3 bytes (24 bits), and the output is always in multiples of 4 characters, padding is added when the input length isn't divisible by 3. One "=" indicates 2 bytes of padding, and "==" indicates 1 byte of padding. This ensures the encoded data has the correct length.
Can I encode special characters and emojis?
Yes! Our Text to Base64 converter properly handles UTF-8 encoding, which means it supports all Unicode characters including special characters, accented letters, emojis, and non-Latin scripts (Chinese, Arabic, Cyrillic, etc.). The tool uses UTF-8 before applying Base64 encoding, ensuring maximum compatibility with international text.
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Features
- 100% Free
- No registration required
- Fast processing
- Secure & private