Verify Your Hash (Checksum)
Check if your text input matches a known hash. This is perfect for verifying file integrity after a download.
What is a Hash Checker?
A Hash Checker (or Checksum Verifier) is a tool that confirms the integrity of data. It generates a hash from your input (like a file's content or text) and compares it to a known, expected hash. If the two hashes match, you can be confident that your data is identical to the original and has not been corrupted or tampered with.
How Does the Hash Checker Work?
This tool uses the same browser-native APIs (for SHA-256) and JavaScript implementations (for MD5) as our Hash Generator. It performs the hash calculation on the text you provide and then performs a simple text comparison against the "Hash to Check" you provided. All processing is done securely in your browser.
Use Cases for Checking Hashes
- Verifying Downloads: Check if a downloaded file is corrupt or has been replaced with malware.
- Data Integrity: Ensure data hasn't changed during transmission or storage.
- Password Verification: (Conceptually) This is how systems check your password without storing it.
Why Use Utils Hub's Hash Checker?
- Instant and Free: Verify unlimited hashes without cost.
- Secure and Private: Your input data and hashes are never sent to our servers.
- Clear Results: Get an instant, easy-to-read "Match" or "No Match" status.
Frequently Asked Questions (FAQ)
Why doesn't my hash match?
The most common reasons are: 1) You selected the wrong algorithm (e.g., checking an MD5 hash as SHA-256). 2) The input text is even slightly different (e.g., an extra space, or different line endings). 3) The original hash you're checking against is incorrect or has a typo.
Can I check a file?
This tool checks *text* input. To check a file, you would need to use a command-line tool (like `md5sum` or `sha256sum`) on your computer or a tool that allows file uploads. For text content, you can copy and paste it directly.
Related Tools on Utils Hub
- Hash Generator – Generate a new hash from scratch.
- HMAC Generator – Generate a hash with a secret key.
- GUID Generator – Create unique IDs.