DigiSigner
7.1#20 in e-signature softwareFrom $15 a monthFree planWebAPI
VisitDigiSigner vs OpenSign
What both publish
| Fact | DigiSigner | OpenSign |
|---|---|---|
| API | The API is a REST-style interface using JSON, and the documentation describes HTTP Basic Auth over HTTPS. | OpenSign exposes a REST API authenticated with an x-api-token header and provides sandbox, production and EU endpoints. |
| API access | Yes | Yes |
| Audit trail | Yes | Yes |
| Bulk sending | Yes | Yes |
| Document templates | Yes | Yes |
| Free plan | Yes | Yes |
| Integrations | DigiSigner says it does not offer a direct Zapier integration, but describes using Gmail as an intermediary; that workflow works only with one signer. | The Professional plan lists Zapier integration, Dropbox import and custom Gmail or SMTP sending. |
| Product | DigiSigner lets users sign and send documents online for signing. | OpenSign describes itself as an open-source PDF e-signature solution for signing, storing, and securing documents. |
DigiSigner plans
- PRO$15 a month
- TEAM$50 a month
- API - 100 documents$99 a month
- API - 300 documents$249 a month
- API - 1,000 documents$499 a month
- API credits—
OpenSign plans
- FreeFree
- Professional$9.99 a month
- Teams$19.99 a month
- EnterprisePriced on request
Pick DigiSigner if…
DigiSigner suits individuals and organizations that need to sign documents online or collect signatures, including users in real estate, human resources, legal, and small business. Teams needing production API signing should account for the subscription and API credit requirements.
Pick OpenSign if…
OpenSign may suit individuals and businesses that need PDF signing, reusable templates, or API-based signing workflows. It also offers self-hosting instructions for those who want to run it on Linux, macOS, or Windows.