What’s the best free tool that helped your business grow?

Running a small business means finding creative ways to save money while maximizing results. Sometimes, a free tool, resource, or platform can make all the difference in streamlining your workflow, attracting customers, or improving your operations.

What’s the one free tool (an app, website, template, etc.) that unexpectedly became a game-changer for your business? How has using this tool contributed to the growth of your business?