Base85 / Ascii85 Encoder + Decoder

Base85 encodes binary data using printable ASCII, like base64 but denser. 4 bytes of input → 5 characters of output (vs 6 for base64), so output is ~25% smaller. Adobe's variant ("Ascii85") is used in PostScript and PDF files. This tool encodes and decodes.

How to use the Base85 / Ascii85 Encoder + Decoder

Pick encode or decode. Output updates live. Uses Adobe Ascii85 variant (no <~...~> wrappers).