Developer Tools
Base64 Encoder & Decoder
Paste any string to encode it as Base64 or decode existing data without leaving traces. The tool keeps your work in the browser, supports Unicode characters, and stays quick even for megabyte-sized payloads.
Convert in Either Direction
Choose Encode to generate Base64 from the left input or Decode to turn Base64 back into plain text.
Processing happens entirely in this tab. Nothing is uploaded or saved.