Base64 Encode & Decode
Easily convert text or binary data to Base64 format and back.
How to Use Base64 Encode & Decode
- 1
Paste Your Text or Base64
Enter the text you want to encode, or paste a Base64 string you want to decode into the input area.
- 2
Select Mode
Choose between Encode (plain text → Base64) or Decode (Base64 → plain text) mode.
- 3
Copy the Result
Click the Copy button to copy the output directly to your clipboard.
Frequently Asked Questions
- Is Base64 encoding the same as encryption?
- No. Base64 is an encoding scheme, not encryption. It is easily reversible and should never be used to secure sensitive data.
- What is Base64 used for?
- Base64 is commonly used to encode binary data (like images or files) for transmission over text-based protocols such as email (MIME) or embedding images in CSS/HTML.
- Is my data safe?
- Yes. All encoding and decoding happens entirely in your browser. No data is transmitted to any server.
Understanding Base64 Encoding and Decoding
Base64 is a group of binary-to-text encoding schemes that represent binary data in an ASCII string format by translating it into a radix-64 representation. The name Base64 comes from a specific MIME content transfer encoding.
This tool allows you to convert any text into its Base64 equivalent or decode existing Base64 strings back into readable text. Since the process is performed entirely on your device using client-side JavaScript, it is a secure way to handle non-sensitive data segments without risking server-side interceptions.
Common use cases for Base64 include embedding small images directly into CSS or HTML files (data URIs), passing data through URLs where certain characters might otherwise be lost, and transmitting binary data in email formats.