Hash Generator
Calculate SHA-256, SHA-384 or SHA-512 for exact text or a local file, then compare a published checksum.
SHA is one-way. The input stays on this device; whitespace is included exactly.
SHA digest
The result appears here as you type.
Ctrl+↵ copy result · Ctrl+Shift+F result to input
How to use Hash Generator
- Choose Text or File, then enter text or select a file up to 50 MB.
- Choose a SHA algorithm and copy the hexadecimal digest.
- In File mode, paste an expected checksum to see whether it matches.
Frequently asked questionsUseful details
4 answers +
Can I reverse a hash?
No. A digest is a one-way fingerprint, not an encoded copy.
Are text spaces included?
Yes. Every character, including spaces and line breaks, changes the text digest. File mode hashes the original bytes, including binary data.
Why is there a 50 MB file limit?
The browser's Web Crypto digest reads the whole file into memory at once. The limit keeps memory use predictable.
Can I use this for passwords?
This tool computes a plain digest. Password storage requires a purpose-built slow password hashing method.
More help
Guides, common conversions and useful next steps.
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