Hash Checker
Verify text against a known hash.
When you download a file with a published SHA-256 checksum or receive a password hash to verify, you need to compute the hash of your copy and compare. Utilitoo's Hash Checker computes SHA-256 or MD5 from your input and reports whether it matches the expected hash value.
Developers verifying download integrity, security analysts confirming credential leaks, and IT admins checking configuration file checksums all use hash verification daily. Case-insensitive hex comparison handles uppercase and lowercase hash formats.
Enter your text and the expected hash, select SHA-256 or MD5, and click Verify. Results show match or mismatch with the computed hash displayed. Pair with SHA256 Generator or MD5 Generator to create hashes, or Password Strength Checker for credential analysis.
All hashing runs locally in your browser on Utilitoo. Your text and hashes are never uploaded. Free for developers and security professionals.
Hash Checker compares digests so you can confirm integrity or identical inputs. Use it alongside generators like SHA-256 or MD5 when one side already has a published checksum. For file verification, hash the downloaded artifact itself, not a renamed copy that gained extra bytes. Publish checksums beside download links using the same algorithm you verify here.
Common use cases
- Comparing a downloaded file's digest with a published checksum.
- Verifying two systems produced the same hash for identical input.
- Teaching integrity checking before introducing signatures.
- Spot-checking that a paste did not gain a trailing newline.
- QA scripts that assert fixture hashes during demos.
Tips & common mistakes
Match algorithm and encoding (hex/base64) on both sides. Hash Checker confirms equality - it does not prove who authored the file. Prefer SHA-256 over MD5 for security-sensitive integrity. Paste digests carefully - hidden spaces from PDFs break equality. Confirm both sides used the same algorithm and normalization. Generators on Utilitoo can recreate a digest from the original text when one side is missing.
Common errors
- Case differences in hex strings - normalize case before comparing if the UI is case-sensitive.
- Comparing MD5 to SHA-256 values will always fail - match algorithms.
How to use
- Enter text and expected hash.
- Verify match.
Frequently Asked Questions
How do I verify a SHA-256 hash?▼
Enter the original text and expected hash in Utilitoo, select SHA-256, and click Verify.
Which hash algorithms are supported?▼
SHA-256 and MD5 verification are available. Bcrypt password hashes use a $2a$/$2b$ prefix - verify those in Bcrypt Generator, not Hash Checker. Password vs checksum choice is covered in the blog guide Bcrypt vs SHA-256 for Passwords.
Is hash comparison case sensitive?▼
Hex comparison is case-insensitive, so uppercase and lowercase hashes both match.
Can I verify a file hash?▼
Paste the file's text content. For binary files, use a desktop tool or paste the hex content.
Is my text uploaded?▼
No. Hashing and verification run locally in your browser on Utilitoo.
Related Tools
SHA256 Generator
Generate SHA-256 hashes from text.
MD5 Generator
Generate MD5 hashes from text.
Password Strength Checker
Check how strong your password is.
HMAC Generator
Generate HMAC signatures from text and a secret key.
Bcrypt Generator
Generate bcrypt password hashes with adjustable cost.
Token Generator
Generate secure API tokens and secrets.