Base64 Encode/Decode
Encode text to Base64 or decode Base64 strings back to plain text. Perfect for data embedding, API authentication, and data transmission.
How It Works
Paste your text or Base64 string in the input area
The tool auto-detects whether to encode or decode
Click "Process" to convert your data instantly
Features
Frequently Asked Questions
Is this tool really free?
Yes, 100% free with no hidden costs or limits. All processing happens in your browser.
Are my files secure?
Absolutely. All encoding/decoding happens locally in your browser – your data never leaves your device.
What is Base64?
Base64 is an encoding scheme that converts binary data to ASCII text. It's commonly used for embedding images in HTML/CSS or transmitting data over text-based protocols.
Base64 Encode Decode Online — The Complete Guide
Need to Base64 encode decode online? Our free Base64 converter lets you encode text to Base64 or decode Base64 strings instantly — no software installation, no signup, and completely private processing.
What is Base64 Encoding?
Base64 is a binary-to-text encoding scheme that represents binary data in ASCII string format. It is commonly used to encode string to Base64 for embedding images in HTML/CSS, encoding email attachments, and transmitting binary data.
How to Use the Base64 Encoder Decoder
Using our Base64 encoder decoder is simple: paste your text in the input field, click Encode or Decode, and get the output instantly. The online Base64 tool handles standard and URL-safe Base64.
Decode Base64 Text Instantly
Need to decode Base64 text back to its original form? Paste the Base64 string and click Decode. Our Base64 converter free tool detects encoding errors to help you troubleshoot malformed strings.
Tips for Working with Base64
- Base64 encoding increases data size by approximately 33%
- Use URL-safe Base64 for web applications
- All processing happens in your browser — data stays private
- Copy output with one click using the copy button