Is my file uploaded to a server?

No. All hash calculations are performed locally in your browser using JavaScript. Your files never leave your computer, ensuring complete privacy and security.

Which hash algorithm should I use to verify files?

Use the same algorithm the software publisher provides. SHA-256 is most common for modern software. If only MD5 is available, it's still useful for detecting accidental corruption, though not malicious tampering.

Why do file hashes matter?

File hashes verify that a downloaded file is identical to the original. If the hash doesn't match, the file may be corrupted during download or tampered with by malicious actors.

Can I check large files?

Yes. The hash checker processes files in chunks, so it can handle large files like ISO images. Processing time depends on file size and your device's performance.

File Hash Checker - Verify File Integrity with MD5, SHA256, SHA512

Drag and drop your file here

or click to browse - files are processed locally

filename.ext

0 KB

Calculating hashes... 0%

File Checksums

MD5

SHA-1

SHA-256

SHA-512

Verify Against Expected Hash

Your Files Stay Private

All hash calculations are performed locally in your browser using JavaScript. Your files are never uploaded to any server, ensuring complete privacy and security.

Common Use Cases

Verify Software Downloads

Confirm ISO images, installers, and software packages match the publisher's checksum to detect tampering or corruption.

Check Antivirus Tools

Verify bootable rescue disks like Kaspersky or Avira before creating USB drives to ensure they haven't been compromised.

Detect File Corruption

Compare hashes before and after file transfers to ensure no data corruption occurred during copying or downloading.

Forensic Analysis

Generate checksums for digital evidence to establish chain of custody and prove file integrity in investigations.