Base91 encode

Client

Compact binary-to-text beside Base85/Z85 pages.

About Base91 encode

Encode UTF-8 text with basE91 alphabet. The interactive transform on this page runs in your browser tab—Toolcore does not need your paste for the core operation described above.

How to use this page

Paste or type in the main workspace, run the primary action from the toolbar, then copy or download the result. Use Load example when the page offers it, or URL prefill (?q= / ?qb=) so agents and tickets open the same input.

TPwJh>A

Nearby workflows on Toolcore

  • Z85 encode & decode (ZeroMQ) — Z85 per RFC 32—4-byte big-endian to 5 string-safe characters; not Adobe ASCII85; browser-only. when the payload needs a different encoding or escape format.
  • ASCII85 (Adobe) encode & decode — Adobe ASCII85 (PDF/PostScript Base85) for UTF-8—!–u alphabet, z for four null bytes; browser-only. when the payload needs a different encoding or escape format.
  • Base64 & URL encoder — UTF-8 Base64 encode/decode and URL component encode/decode in one workspace—paste, transform, copy. when the payload needs a different encoding or escape format.
  • Encoding tools — Hub index: Base64 & URL, Base64url, Base32, Crockford, LEB128, ASCII85, Z85, Base58, base-36, bencode, Morse, quoted-printable, URI, Puny… when the payload needs a different encoding or escape format.

Common use cases

  • Base91 encode for quick local checks without uploading data.
  • Copy results into tickets, docs, or classroom notes.

Common mistakes to avoid

  • Unexpected input shape

    See the intro and how-to notes for accepted formats.

FAQ

Is processing local?

Yes—this runs entirely in your browser.

Agent prefill?

Use q or qb for the main text field when supported.

More tools

Related utilities you can open in another tab—mostly client-side.