OpenSign logo

OpenSign

OpenSign is a free and open source PDF electronic signature solution that transforms the way you sign, store, and secure your documents. Enjoy unlimited digital signatures at no cost while accessing advanced features tailored for professionals, teams, and enterprises.

OpenSign is the open source alternative to:
OpenSign screenshot

About OpenSign

OpenSign offers an all-in-one platform for digital document signing, document organization, and secure storage in a dedicated Drive vault. With features ranging from unlimited e-signatures and free collaboration to detailed completion certificates and robust API integrations, OpenSign caters to individual users as well as larger organizations. Multiple scalable plans ensure that you can upgrade as your needs grow.

Key Features

  • Unlimited free e-signatures
  • Secure document storage with OpenSign Drive
  • Comprehensive certificate and access logs
  • Advanced API, webhook, and Zapier integrations
  • Scalable plans: Free, Professional, Teams, and Enterprise

Pricing

OPENSIGN™ FREE
$0/Free

A robust free plan offering essential e-signature capabilities without any cost.

Features:
  • Unlimited digital signatures
  • Completion certificates
  • Unlimited templates
  • Import from Dropbox
  • Email notifications
OpenSign™ Professional
$29.99/Monthly

Unlock advanced functionalities to streamline your digital signing with professional integrations.

Features:
  • Field validations and regular expression checks
  • API access (up to 100 signatures)
  • Webhooks and Zapier integration
  • Custom email templates
  • Bulk send capabilities
OpenSign™ Teams
$39.99/Per User

Ideal for collaborative environments, this plan enhances team workflows with additional features.

Features:
  • Enhanced API access (up to 100 signatures)
  • Team collaboration and shared templates
  • BYOC cloud storage
  • Bulk send options for teams
OpenSign™ Enterprise
Custom

Tailored for large organizations with advanced requirements; pricing available upon request.

Features:
  • Custom domain and whitelabeling
  • Uptime SLA and SSO support
  • Priority support

Summary

OpenSign delivers a secure, open source solution for digital signatures, offering a versatile range of plans to meet varied document management needs. It integrates advanced features and scalable options that empower both individual users and large teams in executing seamless, legally binding e-signatures.

Adrian
Created by
Adrian
Mar 9, 2025Updated2 min read
This content was partially generated using artificial intelligence.

Tool Details

4,378
376
56
Since 2023
about 1 month ago
85%