Multi-Hash File Checksum Verifier (SHA-256, MD5)
Verify file integrity, detect tampering, and calculate cryptographic checksums.
Local File Integrity & Checksum Calculator
Compute SHA-256, SHA-1, and SHA-512 hashes directly from any local file in your browser memory without uploading bytes over the internet.
Drag & drop any file (ZIP, ISO, binary, text) or browse
Instant client-side Web Crypto stream • 100% private
About the Multi-Hash File Checksum Verifier
Computes MD5, SHA-1, and SHA-256 checksum hashes directly in your browser using Web Crypto APIs to verify file downloads against vendor checksums.
How to Use
Select any file from your computer and paste an expected checksum to compare them automatically.
Understanding Results
A matching hash confirms the file was downloaded intact without corruption or tampering.
Frequently Asked Questions
Is my large file uploaded?
No, checksum computation streams directly inside your browser memory; files are never uploaded over the internet.
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