OpenSign is described as 'Open-source PDF e-signature solution with secure cryptographic signing, audit trails, completion certificates, API integration and multi-device support' and is a E-signature tool in the office & productivity category. There are more than 50 alternatives to OpenSign for a variety of platforms, including Web-based, SaaS, iPhone, Android and iPad apps. The best OpenSign alternative is DocuSeal, which is both free and Open Source. Other great apps like OpenSign are LibreSign, eSign Launchpad, Docusign and AeroSpark.
"eformsign" is a cloud-based e-Form service that enables anyone who is not a developer to easily create diverse forms used in companies. After creating a form, it can be immediately applied to the business processes and the complete form is stored securely.
United Kingdom
Enterprise software to send, e-sign and manage contracts online.
United Kingdom
Free Digital Signature Software that works without any file upload to ensure privacy and security
Combine, merge and reorganize pages of multiple PDF pages and images into one PDF document without any file upload.
ContractHero is a contract management solution that recudes contract chaos and provides easy access to the most important information in a company.
Germany
EU
Comprehensive platform offering contract creation, collaboration, negotiation, e-signing, storage, and management with centralized workflows, user-friendly interface, integrated reminders, templates, audit trails, permission controls, approvals, and popular app integrations.
United States
FormsPal is an online PDF platform for creating, editing, converting, signing, and managing PDFs and forms. It combines fillable templates, PDF tools, e-signatures, and collaboration features in one organized workspace.
United States
Web-based platform for secure AATL-compliant electronic document signing, ISO 27001 certified, supporting real-time tracking, e-Sign API integration, fillable forms, recipient-specific fields, no software needed for signers, and instant delivery after signing.
United Kingdom
Cryptographic e-Seal and document signing platform. ZertES (Switzerland), eIDAS (EU), and UAE Pass compliant. Certified by Swisscom Trust Services. Court-proof timestamps valid in 180+ countries.
Switzerland
AI-powered document automation for proposals, contracts, invoices, and reports — bring your own ChatGPT, Claude, or Gemini API key.
Ukraine
Simple e-signatures and proposals for freelancers and small businesses. $9/month, no annual contract, pause anytime, unlimited documents.
Create a unique digital signature like no other. OnlineSignatures.net combines AI-powered signature generation and smart field detection for effortless online signing — no registration required.
United Kingdom
