Base64 Encoder & Decoder

Convert text to Base64 format and decode Base64 back to text instantly

Welcome to our free online Base64 Encoder/Decoder tool. This powerful utility allows you to convert text into Base64 format for safe transmission, and decode Base64 strings back to their original form. All processing happens directly in your browser - no data is sent to any server, ensuring complete privacy and security.

Base64 encoding is essential for transmitting binary data over text-based protocols like email or JSON. Use this tool for API development, secure data transmission, and data obfuscation. It's completely free with no limitations, and works on any device without installation.

About Encoding

  • Base64 encoding converts binary data to ASCII characters for safe transmission
  • Encoded data is approximately 33% larger than the original
  • Commonly used in email attachments, data URIs, and API payloads
  • All processing happens locally in your browser - no server involved

Secure & Private

All processing happens in your browser. No data is sent to any server, ensuring complete privacy.

Lightning Fast

Optimized algorithms provide instant encoding/decoding with no delays or waiting times.

Fully Responsive

Works perfectly on all devices - desktop, tablet, and mobile with a touch-friendly interface.

Frequently Asked Questions

What is Base64 encoding?

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used when there is a need to encode binary data that needs to be stored and transferred over media designed to deal with text.

Is this tool completely free?

Yes, our Base64 Encoder/Decoder is 100% free to use with no limitations, registration, or hidden costs. You can encode and decode as much as you need.

What are common use cases for Base64?

Base64 is commonly used for embedding images in HTML/CSS (data URIs), sending email attachments, encoding binary data in JSON or XML, and storing complex data in databases.

Is my data secure with this tool?

Absolutely! All encoding and decoding happens directly in your browser. Your data never leaves your device and is not stored anywhere. This ensures maximum privacy and security.