Base64 Encoder & Decoder
Convert plain text to Base64 or decode Base64 back into readable text instantly. This free online tool form Cobriums works entirely in your browser, ensuring your data never leaves your device. It supports Unicode characters, including emojis and non-English languages, making it suitable for developers, students, and everyday users.
Whether you're debugging APIs, working with JSON, JWT tokens, HTML, CSS, or data URIs, this tool provides accurate, fast, and secure Base64 encoding and decoding without requiring registration or server-side processing.
Features
- 100% Browser-Based Processing
- Unicode & Emoji Support
- Fast UTF-8 Encoding/Decoding
- No Registration Required
- No API Calls
- Works on Desktop & Mobile
- Privacy Focused
Base64 Pro Tool
Encode & Decode instantly in your browser — 100% Private
FAQ
What is Base64?
Base64 is a binary-to-text encoding format that converts data into ASCII text. It is commonly used for transmitting binary data over text-based protocols.
Is this Base64 tool free?
Yes. The tool is completely free and does not require registration or subscriptions.
Is my data uploaded to a server?
No. All encoding and decoding are performed locally in your browser. Your data never leaves your device.
Does this tool support Unicode?
Yes. It supports UTF-8 encoding, including Arabic, Chinese, Japanese, emojis, and other Unicode characters.
Can I use this tool on mobile devices?
Yes. The tool works on all modern browsers, including Chrome, Firefox, Safari, and Edge, on both desktop and mobile devices.
Why use Base64?
Developers commonly use Base64 for embedding images in HTML or CSS, transmitting binary data in JSON or XML, creating Data URIs, handling email attachments, and working with APIs.