Practical guide

How to Choose a Free Online Utility and Protect Your Files

A free utility is most helpful when its task, limits, and data handling are clear. Use the least sensitive input possible and verify the result before relying on it.

What to do

  1. Choose a tool made for the exact task, such as compressing an image, counting words, or merging PDFs. Read its file-size and format limits first.
  2. For sensitive documents, prefer a tool that processes files locally in the browser and verify the site's privacy statement; local processing is not a guarantee against every risk.
  3. Keep an original copy of important files and inspect the downloaded output for missing pages, changed formatting, or reduced image quality.
  4. For a quick task, browse the free [online tools directory](/tools/index.html) and open the utility that matches your file or calculation.

Checks and limitations

  • Do not upload identity documents, confidential contracts, or private records to a service unless its data handling is appropriate for that information.
  • A free tool may have limits or may change; do not assume it offers unlimited processing or permanent storage.