OpenSign vs SigningHub
OpenSign
opensignlabs.comSigningHub
signinghub.comSide by side
| Figure | OpenSign | SigningHub |
|---|---|---|
| Price from | $9.99/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 5 | 6 |
| Spec score · E-Signature Software | 9.0 (#4) | 8.6 (#19) |
| Spec score · E-signature tools | 8.9 (#10) | 9.2 (#5) |
| API | OpenSign exposes a REST API authenticated with an x-api-token header and provides sandbox, production and EU endpoints. | SigningHub exposes a REST API using JSON and HTTPS for users, document packages, templates, workflow sharing, status retrieval and downloads. |
| API access | Yes | Yes |
| Audit trail | Yes | Yes |
| Bulk sending | Yes | Yes |
| Documentation | The official documentation includes user help, API references, contribution guidance and self-hosting instructions. | The version 10.0.7 documentation includes searchable navigation, AI search, a knowledge base, community portal, support email and how-to videos. |
| Document templates | Yes | Yes |
| Free plan | Yes | No |
| Integrations | The Professional plan lists Zapier integration, Dropbox import and custom Gmail or SMTP sending. | Official connector apps are provided for Microsoft SharePoint and Salesforce, with marketplace references to SAP and other connectors. |
| Rating on G2 | 4.6 out of 5 from 12 reviews. | Rating on G2: 4.3 out of 5 from 24 reviews. |
| Rating on Gartner Peer Insights | Gartner Peer Insights lists OpenSign but shows no reviews yet. | Rating on Gartner Peer Insights: 4.8 out of 5 from 6 ratings. |
| Rating on GetApp | 4.7 out of 5 from 3 reviews. | Rating on GetApp: 4.8 out of 5 from 4 reviews. |
| Signature order | both | both |
| SMS authentication | Yes | Yes |
| What it does | OpenSign provides cloud and self-hosted electronic document signing for creating, sending, signing, storing and tracking documents. | SigningHub is a digital-signature and document-workflow platform for preparing, sending, reviewing, approving and signing documents. |
Plans
OpenSign
- FreeFree
- Professional$9.99 a month
- Teams$19.99 a month
- FreeFree
- EnterprisePriced on request
SigningHub
- Signature plan — 500 signaturesPrice not published
- Signature plan — 1000 signaturesPrice not published
- Signature plan — 2500 signaturesPrice not published
- User plan$16 a month
- Signature plan$399 a year
- Bespoke planPriced 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.
SigningHub
SigningHub has no write-up on Specifiction yet; its figures are above.