Alternatives · E-Signatures
Firma alternatives
As of Nov 13, 2026, the highest-graded Firma alternative is DocuSeal (2.4 GPA). It's also the best free one.
Firma compared with 5 alternatives: SignatureAPI, Anvil, eSignatures.io, Documenso and DocuSeal.
Firma is a paid product with a free trial, starting at €0.049 per envelope, no minimum. 3 of the 5 alternatives are free or have a free plan. 2 more offer a free trial.
Listings checked up to Nov 13, 2026 · Where the facts come from
Black Friday: is there a Firma sale?
At a glance
| Tool | Price | Free plan | Runs on |
|---|---|---|---|
| FirmaThis tool | Free trial · from €0.049 | Trial only | Web |
| SignatureAPI | Free trial · from $25/mo | Trial only | Web |
| Anvil | Free plan · from $99/mo | Yes | Web |
| eSignatures.io | Free trial · from $0.49 | Trial only | Web |
| Documenso | Free plan · from $25/mo | Yes | Web |
| DocuSeal | Free plan · from $20/mo | Yes | Web |
How each one differs from Firma
SignatureAPI
E-signature API for developers, with a no-code connector
- SignatureAPI starts at $25 per month, includes 100 completed envelopes.
Suits: Developers adding signing to a SaaS product
Anvil
Document automation and e-signature APIs for developers
- Anvil starts at $99 per month (AI Pack, billed monthly).
- Anvil has a free plan, which Firma lacks.
- Anvil also covers forms.
- Anvil does not cover AI agents, which Firma does.
Suits: Product teams embedding signing in their own app
eSignatures.io
Pay-per-contract e-signatures with an API and no monthly fee
- eSignatures.io starts at $0.49 per contract, prepaid in credits from $50.
- eSignatures.io also covers documents.
- eSignatures.io does not cover AI agents, which Firma does.
Suits: Low-volume senders who do not want a monthly subscription
Documenso
Open-source document signing, hosted or on your own servers
- Documenso starts at $25 per month, billed yearly ($300 a year).
- Documenso has a free plan, which Firma lacks.
- Documenso is open source and self-hostable, according to its own site.
- Documenso also covers documents.
- Documenso does not cover workflow automation and AI agents, which Firma does.
Suits: Developers and companies that want an open-source signing tool they can host
DocuSeal
Open-source document signing, in the cloud or on your servers
- DocuSeal starts at $20 per user / month.
- DocuSeal has a free plan, which Firma lacks.
- DocuSeal is open source and self-hostable, according to its own site.
- DocuSeal also covers documents and forms.
- DocuSeal does not cover workflow automation and AI agents, which Firma does.
Suits: Teams that want to self-host their signing data
Limits worth knowing in Firma
- Prices are listed in euros and billed in your local currency at the current exchange rate, so the dollar amount varies.
- One envelope is one document sent for signature, however many signers or pages it has.
- Priority support with a one-business-day response is a separate €100 per month.
- It is an API product; there is no separate end-user signing app listed.
Common questions
What are the alternatives to Firma?
The alternatives to Firma in this directory are SignatureAPI, Anvil, eSignatures.io, Documenso and DocuSeal. Each one has a side-by-side comparison with Firma.
Is there a free alternative to Firma?
Yes. Anvil, Documenso and DocuSeal have a free plan alongside paid ones.
Is there an open-source alternative to Firma?
Documenso and DocuSeal are described as open source on their own sites.
When were these prices checked?
Each listing shows its own date. On this page they run from Oct 17, 2026 to Nov 13, 2026. Vendors change prices without notice, so confirm on their site before you buy.