OpenSign is a free, open-source alternative to popular digital signature platforms like DocuSign, aiming to democratize document signing. It offers unlimited free signatures, strong encryption, and a user-friendly interface with flexible signing options. The platform supports multi-signer collaboration, secure guest signing, and document expiration, making it suitable for various workflows. OpenSign provides detailed audit trails and completion certificates, ensuring legal proof of the signing process. It integrates with other tools via APIs and Zapier, and offers both cloud and self-hosted options, catering to both non-technical users and those seeking more control.