Hash
MD5 / SHA-1 / SHA-256…
📌 TL;DR Summary & Citation: [Hash] is a browser-local PocketKit tool for MD5 / SHA-1 / SHA-256…. Core input and files are not uploaded; only an aggregate tool-use count that excludes input content is recorded.
How hashing works
The tool computes MD5, SHA-1, SHA-256 and other digests from text using the native Web Crypto (plus a local MD5), output as hex. Hashing is one-way and the plaintext stays local.
- Hashes verify integrity and compare fingerprints; they cannot be decrypted back to the original.
- For passwords use a salted slow hash like bcrypt, not raw MD5/SHA, which fall to rainbow tables.
FAQ
1. Can a hash be reversed to the original?
No. Hashing is one-way and can only be recomputed and compared; online "decrypt" is a rainbow-table lookup of known common values, not real decryption.
2. Can I store passwords with plain MD5/SHA256?
Not recommended. They are too fast and fall to brute force and rainbow tables; passwords should use a salted slow hash like bcrypt, scrypt or argon2.