Hash Generator
How to use
Turns any text into a fixed-length fingerprint using MD5, SHA-1, SHA-256 or SHA-512. Hashes help you check that data has not been changed. Type or paste your text, choose a hash type, and the result appears. Hashes are one-way, so they cannot be converted back to the original text.
- Generating a checksum to verify two versions of a document are byte-for-byte identical
- Producing a SHA-256 hash to compare against a published file checksum after download
- Creating a quick fingerprint of a text blob for cache-busting or deduplication logic
- Testing hash output for a small piece of data before wiring up the same logic in code
Free and private. Everything runs on your own device, with no account and no uploads.
Verifying that a downloaded file has not been corrupted, or generating a checksum to compare two versions of a document, both rely on cryptographic hashing. This tool generates MD5, SHA-1, SHA-256 and SHA-512 hashes of any text you enter, using the browser's built-in Web Crypto API for the SHA algorithms, so you can quickly produce and compare fingerprints without installing command-line tools.
No, hashing is a one-way function by design, there is no way to reverse a hash back into its original input, which is exactly what makes hashes useful for integrity checks. For storing passwords, use a slow, salted algorithm such as Argon2 or bcrypt, never a plain hash.
This is called a hash collision, and while theoretically possible for any hash function, it is computationally impractical to find for SHA-256 and SHA-512, and only practically demonstrated for weaker algorithms like MD5.
This tool is designed for hashing text input directly; for hashing files you would need to first extract or paste their text content.
- 1
Enter your text
Type or paste the text you want to hash.
- 2
Choose a hash algorithm
Select MD5, SHA-1, SHA-256 or SHA-512.
- 3
View the generated hash
The hash is computed and displayed.
- 4
Copy the hash
Copy the resulting hash for comparison or storage.
- ·Use SHA-256 or SHA-512 for anything security-related, MD5 and SHA-1 are broken for that purpose and should only be used for simple integrity checks.
- ·Remember hashing is one-way, there is no decode option because none exists mathematically.
- ·To hash a file, extract or paste its text content first, since this tool hashes text input directly.