Mutual NDAs
Upload your standard NDA once, drop in the counterparty's name, and send it before the call ends. Signed copy and audit trail land in your inbox, theirs too.
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↗ · For startups & founders
Sign the NDA while the meeting's still warm.
NDAs, offer letters, contractor agreements, and pilot terms, sent and signed the day they're agreed. Free until you have real volume, $12 a month flat after, and never a per-seat bill that grows with your headcount.
Free forever · 2 forms · No credit card
Last updated
↗ · What you'll send
Pre-ops-team, every founder is the legal department. The paperwork still has to be right: the NDA before the demo, the offer before the candidate cools off, the contractor agreement before the first commit. Sign Sail makes each of those a link you send from your phone, with the audit trail a future acquirer's diligence team will want already attached.
Offer letters & contractor agreements
The offer, the IP assignment, and the start date in one envelope. Candidates sign from a phone, and nobody loses momentum to a printer.
Advisor & founder agreements
Advisor grants, board consents, and founder housekeeping, signed once and stored with a tamper-evident seal instead of a Downloads folder.
Pilot & design-partner agreements
Order form, pilot terms, and signature in one link, so an enthusiastic 'yes' on the call becomes a signed customer the same afternoon.
↗ · Questions
Asked before you ask.
What does this cost pre-revenue?
Nothing, plausibly for a while. The free plan covers 2 forms, 1 uploaded document, and 25 signed submissions a month, with the same legally binding signatures and audit trail as every paid tier. When hiring or sales volume outgrows it, Pro is $12/mo billed annually, flat per account, so the price doesn't move when employee number four joins.
Can I send our existing NDA without rebuilding it as a form?
Yes. Upload the PDF, place the signature and date fields (or bake {{sig}} tags into the document and skip even that), and send. Document signing is included on every plan, the free one too.
Will these records survive due diligence?
That's what the evidence bundle is for. Every signature captures the signer's IP, timestamp, a SHA-256 hash of the signed content, and a frozen copy of what they saw, sealed into a PAdES-signed PDF that satisfies ESIGN, UETA, and eIDAS SES. When diligence asks for the signed agreements, you export them rather than reconstruct them.
Can our product send documents for signature through an API?
Yes, on the Business plan ($29/mo billed annually): a REST API with an OpenAPI 3.1 spec, webhooks, and an MCP server, so your backend or your AI agent can upload a document, place fields, and send it without anyone touching the dashboard. A lot of startups use Sign Sail twice: once for their own paperwork, once inside their product.
Paperwork at the speed of a term sheet.
Start free, send your NDA today, and don't think about e-signature pricing again until you've made your first hires.