Hash Generator

Compute SHA-1/256/384/512 digests of any text, instantly on-device.

Runs locallyWorks offlineShare link carries settings, never your data

SHA hashes are one-way — they can't be decoded back to the original text. Use Verify to check whether a piece of text matches a known hash.

SHA-256 digest (hex)

Send output toBase64 Encode / Decode Code Formatter Regex Tester & Builder Build a workflow from thisOutput stays on this page until you send it.

Frequently asked questions

Is hashing the same as encryption?

No. Hashing is one-way — you cannot recover the input from the hash. Encryption is reversible with a key. Use the Text Encryptor when you need to decrypt later. Hash functions are deterministic, so the same input always produces the same hash output, making them useful for checksums and password verification. Because hashing is irreversible, it's the industry standard for storing passwords securely — a stolen password hash cannot be converted back to a plaintext password. Encryption, by contrast, scrambles data so only someone with the decryption key can read it again, making it suitable for protecting data you need to retrieve later.

Is my text uploaded to be hashed?

No. Everything runs locally in your browser using standard web APIs — your text, files and inputs are never uploaded to a server, so the tool works even offline once the page has loaded.

Which algorithm should I use?

Prefer SHA-256 or stronger for integrity checks. SHA-1 is included for legacy compatibility but is no longer considered collision-resistant. For password hashing, don't use any of these algorithms directly — use bcrypt, Argon2, or PBKDF2 instead, which include built-in salting and slowness to resist brute-force attacks. SHA-256 produces a 64-character hash ideal for file checksums, data integrity verification, and blockchain applications. SHA-512 is even stronger and often used in highly secure systems, though SHA-256 is sufficient for nearly all practical purposes.

Pro tips

Generate SHA-256 and SHA-512 hashes for passwords, files, and data to verify integrity in security applications.
Use the same input multiple times to confirm hashing is deterministic (same output every time proves correct implementation).
Compare two hashes to detect if files have been tampered with or changed during download/transmission.
Copy hashes instantly to use in checksums, digital signatures, and blockchain transactions without manual typing.

About Hash Generator

Also works as a check: paste a hash alongside text and confirm whether the two match, which is how a download or a stored credential is normally verified. Hashing only goes one way, so a digest cannot be turned back into its input.

Compute SHA-1, SHA-256, SHA-384 or SHA-512 digests of any text, or verify whether some text matches an existing hash. Cryptographic hashes turn input into a fixed-length fingerprint and are used for checksums, data integrity and verifying downloads.

Paste an input to get its digest instantly, or compare two hashes to confirm a match. SHA-1 is offered because older systems still emit it, but it is broken for security purposes and belongs only in checks against legacy data.

Hashing answers one question well: are these two things identical? Because the same input always produces the same digest and any change produces a completely different one, comparing digests proves that bytes match without needing to keep or transmit the original. That is what makes it the standard way to verify a download against a published checksum, or to detect that a file has changed since it was last recorded.

Password storage is where a general-purpose hash is the wrong instrument, and the reason is speed. SHA-256 is designed to be fast, which is exactly what an attacker guessing billions of candidates wants. Purpose-built functions such as bcrypt, scrypt and Argon2 are deliberately slow and memory-hard. A per-user random salt is equally essential — without it, identical passwords produce identical digests, so one leaked table immediately reveals which accounts share a password.

Comparing digests by eye is a step worth automating in your head. Two SHA-256 values differing in the middle look identical at a glance, and people routinely check the first and last few characters and declare a match. If a checksum matters enough to verify, paste both values and let the comparison run rather than scanning them — that is the entire reason the verify mode exists alongside the generator.

Common use cases

Developers storing password hashes in databases using SHA-256/bcrypt instead of plaintext to prevent credential theft.
DevOps teams verifying downloaded software checksums match published hashes to detect compromised or corrupted packages.
Blockchain developers generating transaction hashes and merkle trees for cryptocurrency wallets and smart contracts.
Forensic analysts computing file hashes to catalog evidence and prove digital artifacts haven't been altered.

How it comparesUnlike command-line tools (openssl, sha256sum) requiring terminal knowledge or online services like md5-hash.net, our generator works instantly in the browser with SHA-256/512 support, offering privacy-focused hashing since no data leaves your device unlike cloud-based competitors.