MD5 Hash Checker
Verify if a text matches an expected MD5 hash. Enter your text and the hash to check, and the tool compares them instantly. Also supports SHA-1 and SHA-256. 100% client-side.
Tip: The hashes differ. Check for extra whitespace, encoding issues, or ensure you selected the correct algorithm.
Enter text and an expected hash to verify
Check Hash
All computation happens in your browser. No data is sent to any server.
What is MD5 Hash Checking?
MD5 hash checking (also called MD5 verification or MD5 checksum validation) is the process of computing the MD5 hash of a piece of data and comparing it against an expected hash value. If the two hashes match, the data is identical to the original.
This is commonly used for:
- File integrity verification: Verify that a downloaded file hasn't been corrupted or tampered with
- Data validation: Confirm that data received over a network matches what was sent
- Software distribution: Publishers provide MD5 checksums alongside downloads for verification
- Database integrity: Verify that stored data hasn't been modified
MD5 Checker vs MD5 Decryption
A common misconception is that MD5 can be "decrypted." MD5 is a hash function, not encryption — it is a one-way process that cannot be reversed. When people search for "decrypting MD5," they typically mean one of two things:
| What You Want | Right Tool | How It Works |
|---|---|---|
| Verify text matches a hash | MD5 Checker (this tool) | Hashes the text and compares with expected hash |
| Find plaintext from a hash | Dehash Tool | Looks up hash in a database of known values |
| Identify the hash algorithm | Hash Identifier | Analyzes hash format and length |
Frequently Asked Questions
What is an MD5 hash checker?
An MD5 hash checker verifies whether a given text produces a specific MD5 hash. You enter the text and the expected hash, and the tool computes the MD5 of the text to see if they match. This is useful for file integrity verification and data validation.
How do I verify an MD5 hash?
Paste the original text in the first field and the expected MD5 hash in the second field. Click "Check Hash" and the tool will compute the MD5 of your text and compare it character by character with the expected hash. A match confirms data integrity.
Is MD5 still safe to use for checksums?
MD5 is acceptable for non-security checksums like verifying file downloads. However, MD5 is cryptographically broken — collision attacks can be performed in seconds. For security-critical applications, use SHA-256 or SHA-3 instead.
Can I check SHA-1 and SHA-256 hashes too?
Yes. This tool supports MD5, SHA-1, and SHA-256 hash verification. Use the algorithm selector to switch between algorithms before checking your hash.
Is my data sent to any server?
No. All hash computation happens entirely in your browser using the Web Crypto API and JavaScript. Your text and hash never leave your device.
What does "decrypting MD5" mean?
MD5 cannot be decrypted because it is a hash function, not encryption. The term "decrypting MD5" is a common misnomer. What people usually mean is either checking if a text matches a hash (verification) or attempting to find the original input via rainbow table lookup (dehashing).