Base64 Encoder / Decoder
Convert raw text into Base64 format or decode an existing string.
What is a Base64 Encoder & Decoder?
A Base64 Encoder converts any text or binary data into a Base64 ASCII string, and a Decoder converts it back. Used widely in JWTs, data URIs, API authentication headers, and email attachments.
Why Use This Tool?
Base64 encoding is essential for embedding binary data in text-based formats like JSON and HTML. Pair with the URL Encoder for complete encoding workflows.
Best Use Cases
- Encoding images as data URIs for CSS or HTML
- Decoding JWT payloads for debugging
- Encoding credentials for HTTP Basic Authentication
- Email attachment and MIME encoding workflows
How to Use This Tool
Paste your text into the input field, then click Encode to convert to Base64 or Decode to reverse it. Copy the output directly.
FAQs
Is this tool free?
Yes, completely free with no login required.
Does this tool store my data?
No. All encoding and decoding happens locally in your browser — your data never leaves your device.
Does Base64 encrypt my data?
No. Base64 is an encoding scheme, not encryption. The encoded string can be decoded by anyone — do not use it alone to protect sensitive data.