Base64 Encoder / Decoder
Convert text to and from Base64 format. Base64 encoding is commonly used for encoding binary data into ASCII text format for data transmission and storage.
Base64 Encoder/Decoder
About this tool
About Base64 Encoder & Decoder
Base64 encoding is a critical utility for developers, allowing binary data to be represented in an ASCII string format. Our Base64 Encoder & Decoder provides a seamless, browser-based experience for converting text and data into Base64 or bringing it back to human-readable form. Whether you're handling API authentication headers, embedding small assets, or obfuscating data for transmission, our tool ensures 100% accuracy and privacy.
How to use Base64 Encoder & Decoder
- 1
Select your mode: 'Encode' to convert text to Base64, or 'Decode' to reverse it.
- 2
Paste your source string into the 'Input Text' area.
- 3
Click the primary 'Encode' or 'Decode' button to trigger the conversion.
- 4
Copy the resulting string from the 'Output' field for use in your project.
Key features
- Instant two-way conversion between plain text and Base64 format
- Safe character handling supporting UTF-8 and special characters
- Real-time validation—instantly spot invalid Base64 strings during decoding
- Mobile-responsive design for on-the-go developer debugging
- Zero-server interaction: your data is processed entirely in your browser
Why use this tool?
- Simplified data transmission over text-only protocols like SMTP
- Securely handle sensitive binary data within JSON payloads
- No reliance on external APIs—works offline once the page is loaded
- Fastest way to generate basic auth headers for developers
Frequently asked questions
What is Base64 encoding used for?
Is Base64 a form of encryption?
Can I decode non-text data into a file?
Does it support URL-safe Base64?
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