Base64 Converter
Encode text to Base64 or decode Base64 back to text. All processing happens locally in your browser.
How to Encode/Decode Base64 Online?
Choose Mode
Select 'Encode' to convert text to Base64, or 'Decode' to convert Base64 back to readable text.
Enter Data
Paste your text or Base64 string into the input field. Supports Unicode, emojis, and special characters.
Copy Result
Instantly get your converted result. Copy with one click for use in APIs or data URIs.
Why Use BrowserKits Base64 Converter?
100% Client-Side Processing
Your data NEVER leaves your browser. Safe for encoding credentials, tokens, and sensitive information.
Full Unicode Support
Properly handles Unicode characters, emojis, and special symbols without encoding errors.
Developer Friendly
Perfect for working with APIs, data URIs, JWT tokens, and encoded payloads.
Completely Free
No limits, no registration, no hidden fees. Encode and decode unlimited data.
Frequently Asked Questions
Is my data sent to any server?
No, all Base64 encoding and decoding happens entirely in your browser. Your data never leaves your device - perfect for sensitive information like API keys or tokens.
What is Base64 used for?
Base64 is used to encode binary data as text for transmission in text-based protocols. Common uses include email attachments, data URIs in HTML/CSS, JWT tokens, and API payloads.
Can I encode files with this tool?
This tool is designed for text input. For file-to-Base64 conversion, you would need to read the file contents first. The tool handles any text including Unicode and emojis.