Hash Generator
Generate SHA-1, SHA-256, and SHA-512 hashes from text.
相关工具
What is a cryptographic hash?
A cryptographic hash function maps input data to a fixed-length fingerprint. The same input always produces the same hash, but the process is one-way — you cannot recover the original text from the hash.
SHA-256 and SHA-512 are widely used for integrity checks, checksums, and security workflows.
How to Use This Tool
Enter or paste the text you want to hash.
Select SHA-1, SHA-256, or SHA-512.
Click Generate Hash and copy the hexadecimal result.
Common Uses
- Verify file or message integrity
- Generate test checksums during development
- Compare hashed values from APIs or logs
- Learn how SHA algorithms fingerprint data
常见问题
Can I reverse a hash to get the original text?
No. Hash functions are one-way. You can only verify a guess by hashing it again and comparing results.
Is SHA-1 still safe?
SHA-1 is deprecated for security-critical use. Prefer SHA-256 or SHA-512 for new projects.
Is this tool free?
Yes. This tool is completely free to use with no sign-up, no limits, and no hidden fees.
Does my data leave my browser?
No. All processing happens entirely in your browser using client-side JavaScript. Your data is never sent to a server or stored anywhere.
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