Developer Tools
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text or files instantly.
Hash Checker
A secure, client-side hash checker and file verifier. Validate the integrity of your downloaded files or text strings by comparing them against expected MD5, SHA-1, SHA-256, SHA-384, or SHA-512 hashes. Features auto-detection of hash algorithms, precise mismatch character location, and 100% private in-browser processing.
Expected Hash
Verification Result
Expected: -
Calculated: -
What is the Hash Checker?
The Hash Checker compares an expected hash against the actual cryptographic hash of a text string or file, instantly verifying if they match.
How to Use
- Paste the expected hash provided by the software vendor or data source.
- Choose whether you are verifying Text or a File.
- Upload your file or paste your text.
- The tool will automatically calculate the hash and compare it.
- If there is a mismatch, the tool will highlight exactly which character differs.
Common Use Cases
- Verifying the integrity of Linux ISO downloads.
- Checking if a downloaded software update is authentic.
- Comparing database password hashes against user input during development debugging.
Key Benefits
- Instantly highlights mismatches to save debugging time.
- Auto-detects algorithms so you don't have to guess.
- Handles large files quickly and securely without server uploads.
Frequently Asked Questions
Why do I need to check file hashes?
Software developers often provide a hash (like SHA-256) alongside their downloads. By generating the hash of the downloaded file and checking it against the provided hash, you can verify that the file was not corrupted during download or tampered with by a malicious third party.
Does this tool upload my files?
No! The Hash Checker processes all files locally in your browser using the HTML5 File API and the native Web Crypto API. Your files never leave your device.
How does auto-detect algorithm work?
Hash algorithms produce fixed-length outputs. For example, MD5 is always 32 characters, SHA-1 is 40, and SHA-256 is 64. The tool simply counts the length of your expected hash to determine the algorithm automatically.
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