Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text locally in your browser.
Generated Hash
Privacy Note
Hash generation happens locally inside your browser using the Web Crypto API. Your text is not uploaded by this tool. Still, avoid pasting live passwords, production API keys, or private tokens unless you understand the risk.
Generating Hashes for Text, APIs, and Integrity Checks
Hash generation converts text into a fixed-length value that can be used for comparison, integrity checks, debugging, signing workflows, and development tasks where the same input should produce the same output.
This tool supports SHA-1, SHA-256, SHA-384, and SHA-512 through the browser Web Crypto API. It does not support MD5 because MD5 is not available through the standard Web Crypto digest API used here.
A hash is different from encryption. It is designed to be one-way, so it is useful for matching and verification, not for recovering the original input later.
Supported Hash Algorithms
- SHA-1: Legacy hash output. Use only when you need to compare against an older system.
- SHA-256: Common SHA-2 hash used in many API, signing, checksum, and integrity workflows.
- SHA-384: Longer SHA-2 output used where a larger digest size is required.
- SHA-512: SHA-2 hash with a 512-bit output for systems that require a longer digest.
How to Use the Hash Generator
- Enter the exact text you want to hash.
- Select SHA-1, SHA-256, SHA-384, or SHA-512.
- Click Generate Hash.
- Review the output size and copy the hexadecimal hash.
- Keep whitespace and line endings the same when comparing hashes.
Common Use Cases
- Creating a quick hash for text comparison.
- Checking whether two text values are exactly the same.
- Preparing examples for API documentation or tests.
- Debugging webhook, signing, or checksum workflows.
- Comparing values against a known SHA digest.
Example SHA-256 Hash
Input text:
hello-world
SHA-256 hash:
afa27b44d43b02a9fea41d13cedc2e4016cfcf87c5dbf990e593669aa8ce286d
Hashes, Passwords, and Security Limits
- Not encryption: A hash is not meant to be decoded back to the original text.
- Not password storage by itself: Passwords need slow password hashing such as bcrypt, scrypt, Argon2, or a platform-approved equivalent.
- SHA-1 is legacy: Keep SHA-1 for compatibility checks, not new security-sensitive designs.
- Input must match exactly: A trailing space or different line ending changes the generated hash.
Frequently Asked Questions
What does a hash generator do?
It converts text into a fixed-length digest using a selected hashing algorithm. The digest can be compared later to check if the same exact input was used.
Can a hash be decoded?
No. A cryptographic hash is designed to be one-way. You compare hashes; you do not decode them back into the original text.
Why is MD5 not included?
This tool uses the browser Web Crypto digest API, which supports SHA algorithms here. MD5 is intentionally not part of this browser hashing flow.
Should I use SHA-1?
Use SHA-1 only when an older system requires it for comparison. Prefer SHA-256 or stronger SHA-2 outputs for new workflows.
Does this run locally?
Yes. Hash generation runs in your browser with the Web Crypto API.