Find the tool, finish the task.

Use text utilities for transformation and comparison, image utilities for dimensions and file format, and calculator pages when the task involves financial assumptions. A formatter can make JSON readable but cannot prove that the values or schema are correct. A password generator can create entropy but cannot secure an account without unique storage and multifactor authentication.

Work on a copy when changing images, encoded data, lists, or regular expressions. Preview the result, verify counts or dimensions, and download only after the output matches the intended destination. Sensitive material should not be pasted into any tool unless its privacy behavior and the device itself are appropriate for that data.