Base64 Encoder & Decoder
Convert text to and from Base64 encoding instantly.
What Is a Base64 Encoder & Decoder?
Base64 is a binary-to-text encoding scheme that represents data using 64 printable ASCII characters. It's commonly used to safely embed binary data — like images or files — inside text-based formats such as JSON, HTML, CSS, or email, and to encode simple text without special characters causing issues.
How to Use the Base64 Encoder & Decoder
- Choose Encode to convert plain text into Base64, or Decode to convert Base64 back into readable text.
- Type or paste your input into the text box.
- The result updates automatically below.
- Click Copy to grab the output to your clipboard.
Base64 Encoder & Decoder Features
- •Instant encode and decode
- •Handles plain text and Unicode input
- •Clear error messages for invalid Base64
- •One-click copy
- •Runs entirely in your browser
Who Can Use This Tool?
- Developers
- Students
- IT Professionals
- Data Analysts
Frequently Asked Questions
Is Base64 encoding the same as encryption?
No. Base64 is an encoding scheme, not encryption — it doesn't provide any security or confidentiality. Anyone can decode Base64 text back to its original form, so it should never be used to protect sensitive data.
Why does my decoded text show an error?
Base64 strings must use a valid character set and correct padding. If the input contains characters outside the Base64 alphabet, or is missing padding, decoding will fail with an error.
What is Base64 encoding commonly used for?
It's widely used to embed images or files directly into HTML/CSS (data URIs), to safely transmit binary data over text-based protocols like email, and to encode data in JSON or URLs.