Open eSignForms™, the first free and open source electronic contracting software.

It is licensed under the Affero GNU Public License (AGPL).

Open eSignForms is driven by Yozons™, a long-time leader in web-based electronic signature software, giving you access to your contracts from any web-enabled device from anywhere in the world. The code is being built on a decade of expertise garnered developing hundreds of previous electronic signature systems that are still in active use today with new customers daily.

All software developed for Open eSignForms is solely owned and copyrighted by Yozons, Inc., unless the contributed code is provably provided under the public domain. This ensures that all code is compatible and interoperable among all deployments of Open eSignForms as well as simplifies licensing issues for users of the software.

It is developed using Java 6, with the user interface developed using Vaadin 6.7 on top of GWT 2.3. Of course, it's always changing, so refer to the version history page for details.

Yozons invented the commonly used server-centric digital signature solutions so many electronic signature providers now use. Before, digital signatures were all based on users controlling a private key used to create them. In order to handle this in a large environment, a PKI was constructed to handle all of public keys that were needed to verify those digital signatures. Even PGP used this method, albeit without a centralized PKI. The web still uses this model for SSL (https), at least for most sites that don't want browser warnings popping up about unknown or expired digital certificates. Regardless, users needed encryption software to generate and validate, and users were responsible for keeping their private keys secure to only them, while distributing their public keys to others who had to have access to them to verify the digital signatures. The Yozons invention got rid of all of that complexity and instead let the server do all of the key generation, key storage and encryption for its users.

Check out the online demo. Just login using the values below, except without the spaces between the letters:

U: d e m o @ y o z o n s . c o m
P: d e m o 2 0 1 2