OpenSign🔥 The free & Open Source DocuSign alternative

OpenSign

OpenSign is a free, open-source alternative to DocuSign that enables secure document e-signing with an intuitive, user-friendly interface. It provides enterprise-grade features like multi-signer support, audit trails, and PDF templates—without the commercial licensing costs. Perfect for organizations seeking a self-hosted or cloud-based solution that prioritizes security, privacy, and accessibility.

Key Features

• Secure PDF E-Signing : Robust encryption algorithms ensure maximum security and privacy for unlimited document signings
• Multi-Signer Support : Invite multiple signers with sequential signing enforcement and shareable signing links
• PDF Templates : Create and reuse document templates to streamline repetitive signing workflows
• Advanced Annotations : Hand-drawn signatures, typed text, uploaded images, and saved signature options
• Audit Trails & Certificates : Detailed activity logs with timestamps, IP addresses, and auto-generated completion certificates
• Email OTP Verification : Guest signers must enter unique codes sent via email for enhanced security

Use Cases

• Contract Management : Businesses can digitally sign and manage contracts without expensive third-party platforms
• Template-Based Workflows : Organizations can create reusable templates for NDAs, agreements, and forms
• Multi-Party Approvals : Teams can route documents for sequential signatures from multiple stakeholders
• Secure Document Vaults : Centralized storage and organization of signed documents with built-in encryption

Who Is It For

OpenSign is ideal for small to enterprise teams, legal firms, and organizations that want a DocuSign alternative with full control over their document signing infrastructure. It's built for those who value open-source transparency, cost-effectiveness, and the ability to self-host or deploy on their own servers.