Free Online Tools

How to choose the right tool

Browse work and pay, construction, home projects, business, image, PDF, and career document tools. Most tools need no account; browser processing and saved data vary by feature. Units and currency choices also vary, so check the individual tool's method and assumptions before using a result.

Start with the value or file you have. For project measurements, choose a calculator with matching dimensions or a direct-area option; when planning purchases, use coverage from the selected product. For pay questions, choose a tool that accepts the pay period or time records you know. For documents and images, select the action you need—convert, combine, reorder, compress, or add a visible mark. Each page explains its inputs, units, examples, and limits so you can compare its result with your measurements or product information.