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Developer ToolsFree online tool
Convert plain text to standard Base64 representation or decode Base64 strings back into readable text directly in your browser.
Paste or enter the data you want to process, then run the tool.
Use the controls above, check the result, then copy or download it when available.
It ensures binary data or special characters can safely traverse legacy text-only channels such as email and URLs without corruption.
Use this tool whenever you need: Inspecting basic authentication headers, data URI payloads, encoded webhook bodies and binary-safe text representations. It offers a fast, client-side workflow without sign-ups, installation or complex software.
Yes. All processing executes locally in your browser using client-side JavaScript. Your inputs, files and calculations remain private and are never uploaded to our servers.
Never mistake Base64 encoding for encryption; it is an open, reversible byte-to-ASCII encoding scheme that provides zero security. Important note: Base64 increases payload size by approximately 33 percent and does not provide data compression, integrity verification or privacy.
Developer utility
Convert text to Base64 or decode an encoded value. Everything runs locally in your browser.
Plain text to encode
Whitespace is ignored when decoding. URL-safe Base64 (- and _) and missing = padding are accepted.
0 charsYour converted value appears here
Local browser processing
Your text is converted on this device and is not uploaded.