E-signature is the last mile of the deal.

The contract gets signed, and then someone has to remember to move the deal to Closed Won.

QuickSigner is a simple, lower-cost e-signature tool. The catch for HubSpot teams: I couldn't confirm a native HubSpot integration. You'd connect it through its API.

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CategoryE-signature

HubSpot integrationNone confirmed

Connects throughREST API and webhooks

Signer accountNot required

01 / Who it's for

Small businesses and small teams that send contracts, NDAs, and order forms and don't want per-envelope limits.
Teams that want to replace a bigger e-signature tool for basic signing.
Teams with a developer, or a consultant, who can wire signing events into HubSpot.

Moderate fit. Good tool for signing. HubSpot connection is a build.

02 / What it does

Per QuickSigner's homepage and API page:

01Upload, add signers, send. PDF or Word. Signers get a secure link and don't need an account.
02Templates with fields and recipient roles already placed.
03Signing order: sequential or parallel.
04Reminders, tracking, and an audit trail.
05Legal and security. QuickSigner says signatures use PAdES with an Adobe Approved Trust List (AATL) certificate, that it's ISO/IEC 27001:2022 certified and GDPR compliant, and that signatures are recognized under the US ESIGN Act, UETA, and eIDAS.
06Unlimited documents on paid plans, per QuickSigner (as of Oct 13, 2026).
07A REST API with templates, embedded signing, field tags, and webhooks.

03 / How it fits a HubSpot stack

I didn't find a HubSpot integration on quicksigner.com or a QuickSigner HubSpot Marketplace listing.

One trap while researching: a Swedish product called QuickSign (quicksign.se) advertises a HubSpot integration. It's a different domain. Don't confuse the two.

What QuickSigner does have, per its API page:

Webhooks: RECIPIENT_SIGNED for each signer and REQUEST_COMPLETED when the document is sealed.
Templates you can send by ID, so you don't have to upload a file each time.
Embedded signing in an iframe.
QuickSigner itself lists "a 'send contract' button in a CRM" as a typical API use.

So a HubSpot connection would look like:

Step 1Rep clicks a custom action on a HubSpot deal
Step 2Your integration creates a QuickSigner request from a template
Step 3REQUEST_COMPLETED webhook fires
Step 4Your integration updates the deal stage and attaches the signed PDF

That's a real build. Someone owns it.

04 / Pros and cons

Pros

Simple signing. No account needed for signers.
Strong standards story (PAdES, AATL, ISO 27001), per QuickSigner.
API is clearly documented, with webhooks built for "signed" events.
Templates cut repeat setup.

Cons

No native HubSpot integration I could confirm.
No official SDKs, per the API page. Plain REST.
Younger product. Reviewers on its homepage mention features being added after feedback, and one calls it "not as sophisticated as the more established services."
If you already use HubSpot's own quote or signing tools, check whether you need this at all.

The short version

A signed contract that doesn't update the deal is half a close.

Try it

If this fits your stack, you can start with QuickSigner here.

Try QuickSigner →

Affiliate disclosure. This page contains an affiliate link. If you sign up through it, I earn a commission. It costs you nothing extra.

Sources opened

Figures and listing details were checked on Oct 13, 2026 and can change. Confirm current plans and pricing on the vendor's site before you buy.