SG File Checksum

Calculate SHA-256 or SHA-512 for a local file without uploading it.

SanchitGurukulTechnology • Education • Innovation

SG Utility

FREE ONLINE FILE UTILITY

File Checksum Generator & Verifier

Generate trusted file hashes locally and compare them with a checksum supplied by a software vendor or download page.

✓ Local processing✓ Multiple files✓ SHA-2 hashes✓ Verify checksum

● Local & private

Try it: Select a downloaded ISO, ZIP, installer, PDF, or any other file and compare its checksum with the publisher's value.

1. Select files

⇩

Drop files here or click to browse Files stay on this device. You can select multiple files.

No files selected.

2. Choose algorithm

SHA-256Recommended SHA-384Strong SHA-2 SHA-512Strong SHA-2 SHA-1Legacy only

Use SHA-256 or stronger for integrity verification. SHA-1 is included only for compatibility with older published checksums.

3. Verify against a known checksum

Optional: paste a checksum from the software publisher. Spaces and letter case are ignored.

Optional

Examples & how to use

Verify a downloaded file

Download a file and copy the SHA-256 value published by its vendor. Select the downloaded file here, generate SHA-256, paste the published value, and choose Verify selected result.

What a match means

A matching checksum strongly indicates that the bytes in your file are identical to the bytes used to create the published checksum. It does not by itself prove that the publisher is trustworthy.

Example SHA-256

9f86d081884c7d659a2feaa0c55ad015...

SHA-256 values contain 64 hexadecimal characters. SHA-384 contains 96 and SHA-512 contains 128.

Common uses

ISO images, ZIP archives, firmware, installers, backups, exported reports and any file where you need to confirm integrity after transfer or download.

Privacy: checksum calculation happens in your browser with the Web Crypto API. This plugin does not upload the selected files to WordPress or SanchitGurukul.