🔐 Base64 Encoder & Decoder — Encode/Decode Text Instantly
Convert text to Base64 format or decode Base64 strings back to readable text. Perfect for API keys, email attachments, and data transfer. Free & browser-based.
Result
How to Use the Base64 Encoder/Decoder
- Enter Your Text — Type or paste the text you want to encode or the Base64 string you want to decode.
- Choose Encode or Decode — Click "Encode to Base64" to convert text to Base64 format, or "Decode from Base64" to convert Base64 back to readable text.
- View the Result — The converted output appears instantly in the result area below.
- Copy or Clear — Copy the result to your clipboard using the Copy button, or click Clear to reset and start over.
What is Base64?
Base64 is a encoding scheme that converts binary data into ASCII text format using 64 characters (A-Z, a-z, 0-9, +, /).
Each Base64 character represents 6 bits of data, making it safe to transmit binary data over text-based protocols like email or JSON APIs.
Key Features
Instant Conversion
Encode or decode in milliseconds.
100% Private
All processing in your browser.
Unicode Support
Hindi, Arabic, Japanese, Emojis.
One-Click Copy
Copy result to clipboard instantly.
Bi-directional
Encode and decode both supported.
Examples
📝 Text to Base64
Input: "Hello World!"
Output: SGVsbG8gV29ybGQh
🔓 Base64 to Text
Input: "SGVsbG8gV29ybGQh"
Output: Hello World!
🌐 Unicode Support
Input: "नमस्ते दुनिया"
Output: 4KSo4KS/4KSC4KS44KSCIOCkvuCkvuCkvuCkvg==
Frequently Asked Questions
Is this tool free to use?
Yes, completely free with no registration required.
What is Base64 used for?
Base64 is commonly used to embed images in HTML/CSS, encode email attachments, store binary data in JSON/XML, and transmit data over APIs.
Does Base64 encryption secure my data?
No, Base64 is encoding, not encryption. It makes data safe for transmission but does not provide security. For encryption, use AES or similar algorithms.
Is my data safe?
Yes. All encoding/decoding happens in your browser. No data is sent to any server.
Why do I get an error when decoding?
The error means your input is not a valid Base64 string. Check for missing padding (=) or invalid characters.