OpenSign vs SignRequest
OpenSign
opensignlabs.com
SignRequest
signrequest.comSide by side
| Figure | OpenSign | SignRequest |
|---|---|---|
| Price from | $9.99/mo | €9/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 5 | 3 |
| Spec score · E-Signature Software | 9.0 (#4) | 8.3 (#29) |
| Spec score · E-Signature APIs Software | 9.0 (#3) | 8.3 (#10) |
| Spec score · E-signature tools | 8.9 (#10) | 8.7 (#13) |
| API | OpenSign exposes a REST API authenticated with an x-api-token header and provides sandbox, production and EU endpoints. | The REST API is listed as a Business feature, with additional fees applying; the API pricing page says a Business account is required and describes pay-as-you-go and prepaid credits. |
| API access | Yes | Yes |
| Audit trail | Yes | Yes |
| Bulk sending | Yes | Yes |
| Document templates | Yes | Yes |
| Free plan | Yes | Yes |
| Integrations | The Professional plan lists Zapier integration, Dropbox import and custom Gmail or SMTP sending. | The integrations page lists Zapier, Slack, Google Workspace, TOPdesk, Google Drive, Formdesk, M-Files, B-ware, and Juridoc. |
| Security | The API documentation lists TLS-encrypted transport, audit trails, IP logging, and tamper-evident signed PDFs. | SignRequest states it is ISO 27001 certified and supports GDPR compliance; it also describes SSL 256-bit encrypted endpoints, AWS hosting, and a signing log. |
| SMS authentication | Yes | Yes |
| Support | The documentation directs users to contact OpenSign support at [email protected] for assistance. | The plans page lists email support and unlimited phone support for Business. |
Plans
OpenSign
- FreeFree
- Professional$9.99 a month
- Teams$19.99 a month
- FreeFree
- EnterprisePriced 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.
SignRequest
SignRequest is an online e-signature tool for preparing and signing contracts and other documents without printing and scanning. Users can upload PDF, Word, or Excel files and add text, dates, checkmarks, and signature fields. Signers can draw or upload a signature, type their name, or use a generated signature. Workflows can set signing order, select authorization methods, and request attachments. My Documents tracks document status and stores files, while reusable templates keep settings such as signing order and notifications. SignRequest supports signing on smartphones, laptops, and tablets, with Android, iOS, web, and API access. Its free plan allows 10 documents per user per month and unlimited signatures. Professional costs €9 a month per user; Business costs €15 a month per user. Both paid plans describe unlimited documents subject to fair use, and high-volume sending may require a separately sold document bundle. Business API access has additional fees and requires a Business account. Listed integrations include Zapier, Slack, Google Workspace, Google Drive, and others. The service states it is ISO 27001 certified and is in the process of obtaining HIPAA certification.