Live nowe-Tanzz is a Tsukuba Tech product — a real e-signature tool with a genuine differentiator: AI that reads the document with you, not just a faster pen.
Five documents a month, free forever. No credit card.
Not another e-signature clone.
Send and sign in minutes
Upload a PDF, say who signs it, send. The recipient needs no account and nothing to install.
A complete audit trail
Every open, every view, every signature — timestamped, with IP and device, on every document.
Understand before you sign
A plain-language summary, key terms pulled out, and a box to ask the document a question — before anyone signs anything.
Checkbox and text fields
Place acknowledgements and fill-in-the-blanks anywhere on the page — AI can even suggest what a document needs.
Compare two versions
See exactly what changed between drafts — amounts, dates, terms — before you send the next round.
Free to start
Five documents a month, forever, with the full audit trail included. No credit card.
Built on Tanzz AI, used on our own contracts.
e-Tanzz runs on the same engine as everything else we build — Tanzz AI. We needed a faster way to send our own client agreements, and every e-signature tool we tried made you sign first and understand later. e-Tanzz is what we wished existed: a plain-language summary and a place to ask questions, before the pen ever comes out.