The best electronic signature software for startups
Early on, a signing tool has one job: get the contract back without slowing the founder down. We weighted free tiers, speed to value and the headroom to grow, then ranked the six that fit a startup best.
Reviewed by M. HALLORAN·Updated MARCH 2026·How we vet
Tools compared6
Criteria weighted5
Last reviewedJune 2026
Paid placements0
How we ranked the field
Scored on the same five criteria as our main ranking, then reweighted for what an early team needs: a real free tier, fast setup and room to scale. See the full rubric →
Speed to value25%
Free or low cost25%
Room to scale20%
Ease of use20%
Integrations10%
01
RANK
★ Editor’s Choice
Dropbox Sign
Best for fast, unlimited signing
At early stage you want a document signed today, not a procurement project. Dropbox Sign gives you a free tier to start, unlimited requests the moment you pay, and an interface a new hire never has to be taught. It does less than PandaDoc on purpose, and that is the appeal.
The cheapest credible option here. Eight dollars a month buys unlimited documents, and the free plan covers a founder closing a handful of deals. You give up depth and integrations, but a seed stage team rarely misses them yet.
If your sale needs a real proposal, PandaDoc bundles the document, the signature and the CRM sync in one place. The free eSignature plan lets you test it before paying. Founders who only need a signature will find it heavier than they want.
Some enterprise buyers will only sign on DocuSign, and that alone can justify the seat. The Personal plan is cheap, the brand reassures, and you can grow into it. Envelope limits and add on costs are the early friction.
Eight dollars a user is among the lowest per seat prices anywhere, with a solid API for the technically minded. As your team grows the bill stays gentle. The dated interface and the yearly signature cap are the catches.
When all you need is to send and sign, Signaturely is about as friction free as it gets, with a free plan to prove it. It will not scale into a sales engine, but plenty of startups never need it to.