File Hash Checker
Calculate and verify file hashes (MD5, SHA-1, SHA-256). Ensure file integrity.
Hashes are computed in-browser via WebCrypto (SHA-256/SHA-1 only - MD5 is intentionally excluded because it is cryptographically broken; use dedicated tools if you need MD5).
About File Hash Checker
Calculate and verify file hashes (MD5, SHA-1, SHA-256). Ensure file integrity.
File Hash Checker computes cryptographic fingerprints for any file you select and helps you verify that a download arrived intact. Drop in an installer, archive or document and the tool streams it through MD5, SHA-1, SHA-256 and SHA-512, showing each digest as it finishes. Paste the checksum published by the software vendor and the comparison marks a match or a mismatch immediately, so tampered or corrupted files are caught before you run them. Because hashing happens locally, the file never leaves your computer. You can copy a single digest or all of them at once, switch algorithms to meet a publisher's instructions, and read a short note explaining the strength of each method. File Hash Checker is free, needs no account, and works offline in the browser.
How to Use File Hash Checker
- Enter the secret text, file or value you want to process.
- Choose the algorithm, key or options required.
- Run the operation — the output appears instantly and locally.
- Copy the result safely.
Key Features
- Encryption and hashing run locally — your secrets stay on your device.
- Uses established, well-documented algorithms and standards.
- No account, no key storage, no data retention.
Frequently Asked Questions
Why do my File Hash Checker results not match the published checksum?
A mismatch usually means one of two things. Either the download was interrupted or altered in transit, in which case you should delete it and fetch a fresh copy, or the publisher used a different algorithm or a checksum for a different release. Confirm that you compared the same file name and the same method, such as SHA-256 versus MD5. If both still differ, treat the file as unsafe and download it again from the official source.
Is File Hash Checker free to use?
Yes. File Hash Checker is completely free with unlimited use — no account, download or payment required.
Is my data uploaded to a server?
No. File Hash Checker runs entirely in your browser. Your inputs are never sent to our servers or stored anywhere.
Does File Hash Checker work on mobile?
Yes. The interface is fully responsive and works in any modern browser on Android, iPhone, tablets and desktops.
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