String Decode Utility (Base64, Base64URL, Hex)

Use this endpoint when you need a quick, stateless server-side decode of a base64, base64url, or hex string without running local code — especially useful in agent pipelines where the runtime may not have native decode libraries accessible, or when you want a neutral third-party to confirm a decode result.

• Invalid base64 characters in input — returns error or malformed output
• Mismatched encoding format (e.g. specifying base64 but supplying hex) — may return garbage or an error
• Missing required 'input' query parameter — returns 400 or descriptive error
• Unsupported 'from' encoding type — returns error
• Padding issues in base64 strings — may cause decode failure