↗ · The form tool for signing things

Stop paying per signature. Start signing for free.

You're stitching a form tool onto a separate e-signature service, or paying $25 a seat just to collect a signature. Sign Sail bundles the form builder, the e-signature, and the QR code into one account, one bill, one UI.

Start free→See pricing

Free forever · 2 forms · No credit card

ESIGN

US & EU compliant

SHA-256

Tamper-evident

< 5s

PDF gen

signsail.com/forms/3a9f…/edit

SavedDraft

Add a field

Drag onto the canvas, or click to append.

Inputs

First name

Last name

Short text

Date

Choices

Dropdown

Checkboxes

Advanced

File upload

Signature

Form title

Client Intake Agreement

Full legal name*

Avery Kingsley

Email*

[email protected]

Service type

Consulting retainer

Editing

Signature*

ESIGN + eIDASClear · Redo

Field properties

signature

Label

Signature

Help text

Sign with your finger or mouse

Required

Visibility

Always shown

Legal-grade
e-signatures at every tier.

ESIGN ActUnited States
UETAState of incorporation
eIDAS SESEuropean Union
PIPEDACanada
SHA-256 AuditTamper-evident
GDPR-readyData residency

↗ · What you actually get

Three tools you were going to pay
three vendors for.

Sign Sail bundles the form builder, the e-signature capture, and the sharing infrastructure into one account, one bill, one UI.

↗

A form builder that doesn't feel like 2008

Drag-and-drop every field type you actually need: text, email, date, file upload, dropdowns, conditional logic. Save as templates. Reuse forever.

14 field types
Drag reordering
Reusable templates

↗

Signatures that hold up in court

Canvas-based capture with ESIGN, UETA, eIDAS, and PIPEDA compliance. Every submission gets an IP, timestamp, user-agent, SHA-256 hash, and form-schema snapshot, all baked into a signed PDF.

Full audit trail
Tamper-evident hash
Signed PDF output

↗

A QR code in the box

Every published form generates a short URL and a downloadable QR code in PNG or SVG. Post it on a wall, print it on a menu, stick it to a clipboard. Zero setup.

Auto-generated QR
PNG + SVG export
Short link built-in

↗ · Form builder

Drag. Drop. Done.

A block-based editor for structured data. Fourteen field types, drag reordering with dnd-kit, inline validation, live preview. Auto-save draft on every keystroke, so you never lose your work when the coffee runs out.

14 field types including signature and file upload
Conditional show / hide rules
Save any form as a reusable template

Canvas · Untitled form

Full name

Email address

Event type

Drop here

Field type

Signature

+required

Additional notes

↗ · Legal-grade signatures

Every signature comes with a receipt.

We capture the signature image, the signer's IP, user-agent, timestamp, and a SHA-256 hash of the full submission payload, plus a frozen snapshot of the form schema at signing time. Nobody can retroactively change the form after it's been signed.

ESIGN Act, UETA, eIDAS SES, PIPEDA
SHA-256 tamper-evidence
Form-schema snapshot locked in

Compliance / Audit Trail

Client Intake Agreement

Verified

Submission IDc3f7a2b9-1d4e-4a8f-9d2e-7b3c5e9f1a2d

Submitted (UTC)2026-04-06T14:22:31.402Z

IP address82.14.209.46

User-AgentChrome 133 / macOS 15.3

ConsentAgreed

SHA-256 submission hash

a9c4e8b21f7d6e0b5c8a93e4f10d5b2c9e6a71f4d82c3b5e7f9a1d6c4b8e0f81d

Any modification to this submission invalidates the hash.

↗ · QR + short URLs

One link for every surface.

Every published form gets a permanent short URL and a downloadable QR code. Stick it on a menu, a clipboard, a physical waiver station, a chalkboard, or just email the link. Export PNG or SVG, print it at any size.

Short signsail.com/f/… link built in
PNG and SVG export
QR regenerates if the form URL changes

Share · Published

Event Waiver · Summer Camp 2026

signsail.com/f/k3pq8m2x

Anyone with the link can fill it out · No account required

↗ · Generated PDFs

A signed PDF, not a JSON export.

Every submission generates a typeset PDF with the filled form, the signature rendered inline, and the full audit trail on the final page. Downloadable per-submission or in bulk as a ZIP. Optionally emailed to you or to the signer on completion.

Typeset PDF with inline signature
Audit trail page appended
Bulk ZIP download or email attachment

Submission record

Service Agreement

1 / 3

sub_c3f7a2b9

Signed by

Avery Kingsley

2026-04-06 · 14:22 UTC

Audit hash

a9c4…f81d

ESIGN verified

sub_c3f7a2b9 · Generated 2026-04-06 14:22 UTC · signsail.com · Powered by Sign Sail

↗ · Who uses Sign Sail

Built for the people who need a signature, not a legal team.

Solo founders, freelancers, startups, and small teams: you're running a business, not a law firm. Sign Sail handles the compliance plumbing so you can just ship the form and get on with it.

Small businesses

Waivers, intake forms, service agreements, and liability releases, signed in the shop, on a phone, or at a customer's door.

“Replaced a stack of clipboards.”

Freelancers & agencies

Client onboarding + contract signing in one form. Kick off the project with a signed scope, not an email chain.

“Onboarding went from 3 days to 8 minutes.”

Event organizers

Registration plus liability waiver in a single QR-code sign-in. Attendees scan, fill, and sign, on-site or at home.

“One QR on the door does everything.”

HR teams

Policy acknowledgments, handbook sign-offs, and onboarding docs, routed, signed, and archived with full audit trails.

“Every signature, every audit, one search.”

Property managers

Tenant applications with ID upload and lease-addendum signing. Everything captured in a single submission.

“No more 11-page PDF attachments.”

Healthcare & wellness

Intake forms with HIPAA-friendly consent, treatment waivers, and signed agreements. Paperless from the first visit.

“Intake time cut by 70%.”

↗ · For agents

Built for AI agents

Everything the dashboard does, an agent can do over the API or the MCP server: upload a PDF, place the fields, send it for signature, and pull back the sealed copy. No human clicking through a screen.

An MCP server, not just an API
Ten tools at /api/mcp cover the whole signing flow. Point Claude, Cursor, or your own agent at it with a Bearer key and it can work the document end to end.
It reads its own spec
The full REST surface is published as OpenAPI 3.1 at /api/v1/openapi.json. An agent fetches it and learns every endpoint, parameter, and response without you writing a wrapper.
Safe to retry
Errors return a stable code, not just a sentence, so retry logic can branch on them. Every POST takes an Idempotency-Key, so a replayed request never sends a document twice.
Discoverable from the root
An llms.txt at the domain root points agents straight at the spec, the MCP server, and the guides. Rate-limit headers tell them how much room is left before they back off.

# Upload a PDF, place a signature field, send it, pull back the signed copy
curl -X POST "$BASE/documents" -H "$AUTH" \
  -d '{"url":"https://acme.com/nda.pdf","title":"NDA"}'

curl -X PUT "$BASE/documents/$DOC/fields" -H "$AUTH" \
  -d '{"placements":[{"recipientRef":1,"fieldType":"SIGNATURE",
       "pageIndex":0,"x":0.12,"y":0.80,"w":0.25,"h":0.06}]}'

curl -X POST "$BASE/envelopes" -H "$AUTH" \
  -H "Idempotency-Key: nda-001" \
  -d '{"documentId":"'$DOC'","recipients":[{"email":"[email protected]"}]}'

curl "$BASE/envelopes/$ENV/pdf" -H "$AUTH" -o signed.pdf

See how it works→Read the API docs

On the Business plan

↗ · Pricing

Everything legal, at a price that isn't.

Signatures, audit trails, and PDFs are included at every tier. You pay for volume, seats, and support, not for the compliance itself. One flat price per plan, not per signature.

Free

$0/ month

A real plan, not a trial. Individuals and solo founders get legally binding signatures on 2 forms, free forever.

1 seat
2 forms
1 document
25 submissions / month
Signatures, audit trail, PDFs, QR codes
Signers always get their signed copy
90-day data retention
Community support

Start free

No credit card

Things people ask before
signing up.

If your question isn't here, email [email protected] and we'll respond within a business day.

/ general information, not legal advice
/ built to hold up in court

Yes. Every signed submission captures the signer's IP, browser, timestamp, a SHA-256 hash of the full payload, and a frozen copy of the form schema at signing time. That bundle satisfies the ESIGN Act (US), UETA (US state law), eIDAS Simple Electronic Signature (EU), PIPEDA (Canada), and equivalent frameworks. It's the same standard the major e-signature platforms meet for their entry plans.

Sign Sail is a form builder with e-signatures baked in, not an e-signature product with an afterthought form tool. If you're collecting structured data alongside a signature (intake forms, waivers, registrations, agreements), Sign Sail is roughly half the price and a fraction of the setup. If all you need is to send a PDF to one person to sign, a dedicated e-signature tool is still probably right for you.

Free-tier submissions and their PDFs are retained for 90 days and then permanently deleted. You'll get a warning email 7 days before deletion so you can export what you need. Pro keeps data for 1 year, Business keeps it indefinitely.

No. Respondents fill forms on a plain public URL, with no login, no app, and no account creation. They can sign with a finger on their phone or a mouse on their laptop. Zero friction.

Yes. Whether you're billed monthly or annually, you can cancel from your account page with one click. We don't lock you in, and we don't make you email support to downgrade. Your data stays accessible during any remaining paid period and follows the retention policy of whatever tier you're on after.

Yes, on the Business plan. Send a form to a named recipient list, in parallel or in roster order, with per-recipient reminders, decline-with-reason, expiry, and a unified envelope audit trail attached to every signed PDF. Up to 10 recipients per envelope.

↗ · Get started

Replace the clipboard, not your business model.

Free forever for your first 2 forms. From waivers to NDAs, get it back signed with a tamper-evident audit trail. No credit card to start.

Start free→See pricing

ESIGN · UETA · eIDAS · PIPEDA · SHA-256

Stop paying per signature. Start signing for free.

Client Intake Agreement

Three tools you were going to pay three vendors for.

A form builder that doesn't feel like 2008

Signatures that hold up in court

A QR code in the box

Drag. Drop. Done.

Every signature comes with a receipt.

One link for every surface.

Event Waiver · Summer Camp 2026

A signed PDF, not a JSON export.

Service Agreement

Built for the people who need a signature, not a legal team.

Small businesses

Freelancers & agencies

Event organizers

HR teams

Property managers

Healthcare & wellness

Built for AI agents

An MCP server, not just an API

It reads its own spec

Safe to retry

Discoverable from the root

Everything legal, at a price that isn't.

Things people ask before signing up.

Replace the clipboard, not your business model.

Three tools you were going to pay
three vendors for.

Things people ask before
signing up.