File Hash and Checksum
Calculate SHA-256, SHA-512, SHA-1 or MD5 checksums of files and compare them with the checksum a download page publishes.
Free · No upload · 100% on your device
Choose files, or drop them here.
Any file type · Nothing is uploaded.
How to use File Hash and Checksum
- Choose files, or drop it on the page.
- Choose the settings in the side panel.
- Select “Calculate”.
- Download the result. Your original file is left unchanged.
Private by design. Everything you type, open or record is processed in this browser tab and is never uploaded to KittySuite.
About File Hash and Checksum
Paste the checksum from the download page to compare automatically; a match means the file is exactly what the publisher released. Files are hashed in this tab, so even large ISO images never leave your device. The text result uses the same format as sha256sum.
Your files are read in this browser tab and never uploaded. Nothing is stored after you close the page, and there is no size limit beyond your device’s memory.
File Hash and Checksum: frequently asked questions
How do I check a file’s SHA-256 checksum?
Choose the file and SHA-256 (or SHA-512, SHA-1, MD5 or All). The checksum is calculated in this tab.
How do I verify a download?
Paste the checksum from the download page. A match means the file is exactly what the publisher released.
Can I hash very large files such as ISO images?
Yes. Files are hashed in this browser tab, so even large images never leave your device.
Is the output compatible with sha256sum?
Yes. The text result uses the same format.