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




The best alternative to OpenSign is Subnoto, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to OpenSign and 17 are so hopefully you can find a suitable replacement. Other interesting alternatives to OpenSign are Sproof Sign, Ugosign, Oneflow and GetAccept.
Subnoto is the only e-signature platform that keeps your documents confidential at all times, even during signature.




sproof sign is a digital signature software from Austria. It's eIDAS compliant which makes the signatures legally binding in the EU.




Ugosign offers an affordable, user-friendly solution for fast, secure electronic signatures. Designed for businesses of all sizes, it features customizable workflows, simple signature compliance, and secure storage, helping you streamline document processes with ease and efficiency.




Oneflow is a digital contract software that transforms the outdated contract process into a wonderfully connected pre-sign, sign, and post-sign digital experience.




GetAccept is a digital sales room software that empowers revenue teams to streamline their document workflows, close deals faster, and drive exceptional customer experiences — from opportunity to signed deal.




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.




Our global economy is shifting rapidly and the digitalization is finding its way into every department we work in. What we once sent by post is now sent via email, what was once discussed in person now happens via Skype, and what was once signed on paper is now signed using...




ContractHero is a contract management solution that recudes contract chaos and provides easy access to the most important information in a company.




inSign offers a comprehensive software solution for advanced and qualified electronic signatures according to eIDAS (EU) and ZertES (Switzerland). The signature solution supports the creation, management and signing of documents.




Simplify your business using eSignatures. Send your documents and get them signed in seconds!


XolidoSign, the best technology for electronic signature, time stamping and verification of all types of intelligent documents (PDF integrated firm, images, etc..).
