Base64 Encode/Decode
Encode your text into Base64, or decode a Base64 string back to its original text.
Your files never leave your device — everything runs in your browser.
How to Use
- 1Type your text into the box.
- 2Click 'Encode to Base64' to encode, or 'Decode from Base64' to decode.
- 3Use the 'Copy' button to copy the result.
Frequently Asked Questions
What is Base64 encoding used for?
Base64 converts binary or text data into a text-safe format, commonly used for embedding data in URLs, JSON, or email attachments where raw binary isn't allowed.
What happens if I try to decode an invalid Base64 string?
You'll see a clear error message telling you the string isn't valid Base64 — check that you haven't included extra characters or a truncated string.