Subnoto is the only e-signature platform that keeps your documents confidential at all times, even during signature.
Cost / License
- Freemium
- Open Source (Apache-2.0)
Platforms
- Online




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, Android, iPhone and iPad apps. The best OpenSign alternative is DocuSeal, which is both free and Open Source. Other great apps like OpenSign are eSign Launchpad, Docusign, DottedSign and LibreSign.
Subnoto is the only e-signature platform that keeps your documents confidential at all times, even during signature.




Streamlines document processes from creation to payment, supporting real-time collaboration with CRM integrations, secure e-signatures, and extensive compliance, enhancing team productivity with an 800% increase.




Blueink is a digital platform for managing documents electronically at a cost 50% less than DocuSign. It offers features like security and compliance, mobile-friendly signing, premium support, and API integration.



Adobe Sign provides seamless e-signatures with real-time tracking, supporting offline features, in-person and mobile signing. Complies with laws like ESIGN and eIDAS, ensuring global trust. Integrates with cloud platforms, offering robust security with encryption and verification features.




sproof is the European platform for digital trust, signature, and identity processes – built for organisations with the highest requirements for security, efficiency, and scalability. The solution combines six modular components and supports all eIDAS-compliant signature levels...




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Digitally sign and manage documents using legally-binding electronic signatures, unlimited e-signing, PDF creation, annotation, team collaboration, advanced encryption, audit trails, secure archiving, offline access, multi-party signing, and cloud integration.




Please Sign Me is an esignature tool for Google Docs™ and Google Drive™. The first truly integrated Google Docs digital signature experience that doesn't force you to download your doc, draw annoying text and signature boxes, and then reupload your final signed document back...




Signing documents digitally should be fast and easy and should be the best practice for every document signed worldwide.


The affordable, secure and easy to use electronic signature solution. It's time to say goodbye to printers and scanners.



