Encode API Data in Base64
Encode credentials, tokens, and payloads to Base64 for use in HTTP headers and API requests.
API tips
HTTP Basic Authentication encodes "username:password" in Base64 and sends it as "Authorization: Basic <encoded>" in the request header.
JSON Web Tokens (JWTs) use Base64URL encoding for their header and payload sections. Paste a JWT to decode and inspect its claims.
Base64 is encoding, not encryption. It's not secure on its own — always transmit Base64 credentials over HTTPS.
Some APIs require Base64-encoded request bodies or file attachments. Encode your data here and paste directly into your API client.
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