For many businesses, e-signature software has revolutionized day-to-day processes. Rather than print a legal document, mail it to your signer and wait for them to sign it and send it back, you can send a single email and wait for the reply with your fully signed document. Digital documents are easy to keep track of. The list we've outlined here includes any e-signature solution with an available free offering. They may only support one user or one project, but they're truly free offerings. Scaling, however, will often require full investments.