What this tool is for
Base64 Encoder Decoder switches between plain text and Base64 for API examples, headers, and data snippets.
When to use it
Use it when a value needs Base64 transport formatting or when you need to inspect an encoded string.
What the result means
Plain text becomes Base64; Base64-looking input is decoded back to text.
Use notes
- Base64 is encoding, not encryption.
- Binary files are not supported here.
- Invalid Base64 returns an error.
Privacy and limits
Everything runs in your browser tab. Avoid pasting production secrets, private tokens, customer data, or proprietary code into any online page unless your team policy allows it.