Sign from any device
Recipients sign in the browser, with no account needed.
Learn how legal teams use SIGI to close contracts 50% faster with AI-powered e-signatures.
Sigi drafts your contracts, checks them for risk, collects every signature, and files the proof, all in one place.



Sigi drafts, checks, sends, and signs
your documents in

one place, so signing
stops being a chase and starts being a step.
Recipients sign in the browser, with no account needed.
Time, IP, location, and device on every signature.
Risky and missing clauses, flagged while still a draft.
Signed contracts sync your CRM, invoice, and follow up.















































































Close a deal in Lio and the contract drafts itself. Sign it, and Inzo raises the invoice while Taro opens the follow up project. Nothing gets typed twice.
From the first draft to the certificate that proves it, Sigi handles the whole document, not only the signature.

Draft, pending, in progress, completed, with the reason anything is stuck.

Draft, pending, in progress, completed, with the reason anything is stuck.

A severity rated scorecard flags one sided and missing clauses before you send.

Save any contract as a fill in the blank template.

See who opened, who read, and who went quiet.

A sealed certificate on every completed document.

Join thousands of teams that draft, sign, and close contracts faster with AI they can trust.
Head of Sales
The moment a deal is qualified, Sigi sends the contract from a template and tracks who has opened it. Signers just click a link, no account needed, and we've cut time-to-signature from days to hours.
People Operations Lead
Offer letters that used to sit unsigned for a week now close the same day. Candidates sign from their phone and every signature is logged with a full audit trail. Onboarding has never been this fast.
Operations Director
We route hundreds of vendor agreements a month. Sigi sends each one to the right approver in order and reminds signers automatically when they go quiet. Our approval cycle dropped from two weeks to two days.
Founder & CEO
Sigi replaced three separate tools for us. Drafting, signing, and storage all live in one place, and it syncs deals straight from our CRM. It's the first contract workflow my whole team actually enjoys using.
Finance Manager
Between the tamper-proof audit log and geolocation on every signature, we finally have contracts that stand up in an audit. Sigi gives us enterprise-grade proof without the enterprise-grade price.
Legal Director
Sigi's clause review flagged a one-sided indemnity term our team would have missed. Every contract is now checked for risk before it goes out, and the tamper-evident certificate gives us proof that actually holds up.
Head of Sales
The moment a deal is qualified, Sigi sends the contract from a template and tracks who has opened it. Signers just click a link, no account needed, and we've cut time-to-signature from days to hours.
People Operations Lead
Offer letters that used to sit unsigned for a week now close the same day. Candidates sign from their phone and every signature is logged with a full audit trail. Onboarding has never been this fast.
Operations Director
We route hundreds of vendor agreements a month. Sigi sends each one to the right approver in order and reminds signers automatically when they go quiet. Our approval cycle dropped from two weeks to two days.
Founder & CEO
Sigi replaced three separate tools for us. Drafting, signing, and storage all live in one place, and it syncs deals straight from our CRM. It's the first contract workflow my whole team actually enjoys using.
Finance Manager
Between the tamper-proof audit log and geolocation on every signature, we finally have contracts that stand up in an audit. Sigi gives us enterprise-grade proof without the enterprise-grade price.
Legal Director
Sigi's clause review flagged a one-sided indemnity term our team would have missed. Every contract is now checked for risk before it goes out, and the tamper-evident certificate gives us proof that actually holds up.
The questions teams ask before they move their signing to Sigi.
Are documents signed with Sigi legally valid?
Every completed document carries a tamper evident certificate recording who signed, the time, their IP, location, and device, plus a cryptographic fingerprint of the file. That is your proof.
Do signers need to create an account?
Can several people sign in a set order?
Can Sigi check a contract for me?
Does Sigi work with the tools I already use?
Can I try Sigi for free?

Start free, send your first document in minutes, and let Sigi draft, check, sign, and prove it while you focus on the deal. No credit card needed.