Legal Contracts by onSoft is described as 'Business document templates'. There are three alternatives to Legal Contracts by onSoft for Online / Web-based and SaaS. The best alternative is Rocket Lawyer. It's not free, so if you're looking for a free alternative, you could try inContract.
A more efficient workflow for your company. inContract enables you to create contracts and agreements with ease. This allows you to fully focus on your company without having to worry about any of the lawful side effects.