OpenSign vs Sertifi
OpenSign
opensignlabs.com
Sertifi
sertifi.comSide by side
| Figure | OpenSign | Sertifi |
|---|---|---|
| Price from | $9.99/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 5 | 10 |
| Spec score · E-Signature Software | 9.0 (#4) | 7.5 (#48) |
| Spec score · Electronic Signature APIs | 8.9 (#2) | 7.5 (#22) |
| Spec score · Electronic Signature Software | 9.0 (#3) | 7.6 (#26) |
| Spec score · E-signature tools | 8.9 (#10) | 7.2 (#56) |
| Integrations | The Professional plan lists Zapier integration, Dropbox import and custom Gmail or SMTP sending. | Listed integrations include Amadeus Delphi.fdc, Infor HMS and Sales & Catering, Oracle OPERA Cloud, Salesforce, Authorize.net, Stripe, and several payment processors. |
| Product | OpenSign describes itself as an open-source PDF e-signature solution for signing, storing, and securing documents. | Sertifi offers hospitality-focused e-signature, payment, and authorization solutions to help businesses contract and close business. |
| Security | The API documentation lists TLS-encrypted transport, audit trails, IP logging, and tamper-evident signed PDFs. | Sertifi lists TLS 1.2, encrypted document storage, audit trails, PCI Level 1 validation, SOC 1 Type 2 and SOC 2 Type 2 compliance, and HIPAA compliance. |
| Support | The documentation directs users to contact OpenSign support at [email protected] for assistance. | The support center provides documentation for signatures and payments, digital authorizations, integrations, the Sertifi API, and customer support contact. |
Plans
OpenSign
- FreeFree
- Professional$9.99 a month
- Teams$19.99 a month
- FreeFree
- EnterprisePriced on request
Sertifi
- Free Travel Company AuthorizationsFree
- Event & Venue — Build-your-own packagePriced on request
- Event & Venue — EssentialsPriced on request
- Event & Venue — PremiumPriced on request
- Hotel & Lodging — Build-your-own packagePriced on request
- Hotel & Lodging — EssentialsPriced on request
- Hotel & Lodging — PremiumPriced on request
- Travel Advisor — Build-your-own packagePriced on request
- Travel Advisor — EssentialsPriced on request
- Travel Advisor — PremiumPriced on request
In their own words
OpenSign
OpenSign is an open-source PDF e-signature solution for signing, storing, and securing documents. Users can create reusable templates with pre-placed widgets and send them through the API to one or many signers. API workflows include self-signing, drafts, signer roles, public template links, and real-time webhook notifications. Templates can be embedded in React, Next.js, HTML, JavaScript, and Angular projects. The documentation lists TLS-encrypted transport, audit trails, IP logging, and tamper-evident signed PDFs; account protection includes two-factor authentication and passkey sign-in. The free plan costs nothing and lists unlimited digital signatures and templates, completion certificates, sequential signing, OpenSign Drive, and email notifications. Its free-plan guide limits invitation emails to 15 per month; bulk sending and public links require a paid plan. Live API tokens require Professional or Teams, though sandbox tokens are available on all plans. OpenSign provides Docker self-hosting instructions for Linux, macOS, and Windows. Some SMTP features are limited to paid plans.
Sertifi
Sertifi provides hospitality-focused electronic signatures, payment collection, and card-authorization tools for businesses handling contracts and closing business. Users can send contracts, banquet event orders, and other paperwork for signature, request payment with signatures, and track requests with automatic reminders. Payment support includes card-not-present event deposits and final payments, scheduled deposits, and ACH through SertifiPay or an integrated gateway. Authorization forms capture card information with instant verification and Kount-powered fraud scoring. Signed documents remain in the Sertifi portal for one year, while the PDF emailed at signing remains available indefinitely. Listed integrations include Amadeus Delphi.fdc, Infor HMS and Sales & Catering, Oracle OPERA Cloud, Salesforce, Authorize.net, Stripe, and payment processors. Security details include TLS 1.2, encrypted storage, audit trails, PCI Level 1 validation, SOC 1 Type 2, SOC 2 Type 2, and HIPAA compliance. The service has web and API access, bulk sending, templates, SMS authentication, and both signature-order options. Pricing is on request; a Free Travel Company Authorizations plan is listed at free.