How does ASCII85 differ from Z85?

Both pack four bytes into five characters, but Adobe ASCII85 uses the character range ! to u, wraps output in delimiters, and uses z as shorthand for an all-zero group. It is the variant found in PostScript and PDF.

Can I decode ASCII85 without the delimiters?

Yes. The decoder accepts input with or without the leading , and ignores whitespace between characters.

Is anything uploaded?

No. ASCII85 encoding and decoding run entirely in your browser; your data stays on your device.

ASCII85 Encoder — Gera Tools

ASCII85 encoder and decoder

ASCII85 is the Base85 variant used in PostScript and PDF. It encodes every four bytes as five characters in the range ! to u, wraps the stream in <~ and ~> delimiters, and uses a single z as shorthand for an all-zero 4-byte group. Partial final groups are handled with the standard n-bytes-to-(n+1)-characters rule.

Choose encode or decode, paste your input — the decoder tolerates missing delimiters and stray whitespace — and the result appears instantly, entirely in your browser.