How to use File Checksum
- Paste the text you need to check into the input box.
- Adjust the Algorithm, Expected checksum (optional) options to match what you need.
- Watch the output update instantly while you adjust the text.
- Use Copy to keep or reuse the result.
About this tool
File Checksum runs entirely in your browser. File Checksum is a free checksum Tools utility that runs in your browser, doing its work on the input you provide without a backend.
Because it runs on your device, it is fast and private and works offline once loaded. Your input never leaves the page, and no account or install is required.
Frequently asked questions
What is File Checksum for?
File Checksum lets you check your input right in the browser using the Algorithm, Expected checksum (optional) controls, with the result shown instantly and nothing uploaded.
Is File Checksum free to use?
Yes — File Checksum is completely free, with no usage limits.
Where is my data processed by File Checksum?
Entirely in your browser — File Checksum keeps your data on your own machine and sends nothing anywhere.
Does File Checksum work on mobile?
Yes — File Checksum is just a web page and runs on any modern browser, including phones and tablets.