File Hash & Checksum Checker

Security & PrivacyVerification

Verify integrity of any local file. Compute SHA-256, SHA-1, SHA-512 and compare expected checksums.

Security & Privacy
100% Client-Side: Runs in browser
Zero Uploads•Free Forever ($0)•No Registration

How to Use File Hash & Checksum Checker

Follow these simple steps to use this free browser-based tool:

1

Select or Drop File

Drag and drop any file into the hash verifier or click to select from your drive.

2

Inspect Hashes

View automatically generated SHA-256, SHA-1, and SHA-512 checksum strings.

3

Compare Hash (Optional)

Paste the author's published checksum into the comparator to verify integrity.

Key Features & Benefits

Computes SHA-256, SHA-1, and SHA-512 cryptographic hashes simultaneously
Instant checksum comparison with visual Pass/Fail verification
Zero server upload: hashes are computed directly via Web Crypto API in your browser
Supports large files (ISOs, zip archives, documents, software installers)

Frequently Asked Questions

Are my files uploaded to the internet?

Never. The File Hash Checker utilizes the native browser Web Crypto API. The file is read chunk-by-chunk in local browser memory and never leaves your computer.

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