File Checksum Verifier
Verify file integrity by comparing SHA-256 checksums.
Drop a file to checksum
or click to browse
Max 10240MB
Paste it straight from the vendor — we auto-detect MD5, SHA-1, or SHA-256 by length and pull the hash out of a full sha256sum line.
About File Checksum Verifier.
Verify File Integrity With Checksum Comparison
Download a file and want to verify it wasn't corrupted or tampered with? Paste the expected SHA-256 (or SHA-1, MD5) from the vendor's site, drop the file, and CipherForces compares. Green check = safe to install. Red X = do not run.
Common Use Cases
- Software installers: Verify you downloaded the real VS Code, Node, Docker, etc. — not a tampered copy.
- Linux ISOs: Check the SHA-256 from the distro's website matches your downloaded ISO.
- Backup verification: Ensure a backup archive still matches its known checksum after years in cold storage.
- Supply-chain security: Verify vendor-supplied binaries against their signed checksums.
Key Features
- Auto-detect algorithm: We infer SHA-256 vs SHA-1 vs MD5 from the hash length you paste.
- Large file support: Streams the hash computation; no memory blow-up on multi-GB files.
- Side-by-side display: Expected hash and computed hash shown with character-level highlighting of any differences.
Privacy: Hashing uses crypto.subtle in your browser. Files never upload.
Frequently asked questions.
How do I verify a file's checksum with this tool?
Drop your file into the tool to compute its SHA-256 checksum, then paste the expected hash from the download page into the verify box. The tool compares the two and tells you instantly whether they match, confirming the file is intact and unaltered.
Is my file uploaded to a server when I check its checksum?
No. The entire checksum runs in your browser using JavaScript, so your file never leaves your device or touches a server. Nothing is uploaded, stored, or transmitted, which means you can safely verify sensitive or confidential files without any privacy risk.
What does comparing SHA-256 checksums actually prove?
It proves the file you have is byte-for-byte identical to the original. If your computed SHA-256 hash matches the publisher's, the download was not corrupted or tampered with. Even a single changed byte produces a completely different hash, so any mismatch signals a problem.
Can I check file integrity without signing up or paying?
Yes. The File Checksum Verifier is completely free with no signup, account, or installation required. Open the page, add your file, and compare checksums right away. Because everything happens locally in your browser, you can use it as often as you need at no cost.
How to use File Checksum Verifier.
Upload your file
Drag and drop or click to select your file.
Choose settings
Adjust quality, size, or format options.
Download result
Your processed file is ready instantly.
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