Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text. Powered by the browser's Web Crypto API.
01Why this hash tool
Reliable digests, instantly.
Four reasons developers, security folks, and DevOps keep this tab open instead of a terminal.
- 01
Four algorithms in one tab
SHA-1, SHA-256, SHA-384, SHA-512 — pick the digest you need, paste your input, copy the hex. No installing OpenSSL, no command flags to memorize.
- 02
Hashes update as you type
Edit the input and every algorithm refreshes instantly. Great for spotting how a single character flips the entire digest.
- 03
Runs on the Web Crypto API
Hashing happens inside the browser via SubtleCrypto. The same primitive your backend uses — just exposed in a UI.
- 04
Your input never leaves your device
Passwords, tokens, secret config — type it here without worrying. The page does not transmit anything to a server.
02How it works
Paste, pick, copy.
- Input1api_key=sk_live_4f8a...
Step 1Paste your text
Drop in a string, a JWT, a file path, or anything else you need to hash. The tool reads every keystroke.
- AlgorithmSHA-1SHA-256SHA-512
Step 2Pick an algorithm
SHA-256 is the sensible default for most modern use cases. Toggle SHA-1, SHA-384, or SHA-512 if you need to match an existing system.
- CopiedSHA-2569b74c9897bac770ffc02…Hex · 64 chars
Step 3Copy the digest
Hex output appears beside the input. Tap Copy to drop it into your config, your test, or your commit message.
03Use cases
Where hashing pays off.
Verifying downloads, fingerprinting secrets, and matching what the backend computed — the everyday hash jobs.
Verify a file download
Vendor posts a SHA-256 next to their installer. Paste your downloaded file's contents (or its checksum) and confirm it matches before running.
Installer SHA-256 → match checkFingerprint API keys for logs
Don't log the key itself. Hash it and log the digest so you can correlate requests without exposing the secret.
API key → safe log fingerprintMatch a cache or CDN ETag
Cache layers use hashes to decide whether content has changed. Recreate the digest locally to debug stale-content issues.
Body → ETag-style hashPin third-party scripts (SRI)
Subresource Integrity uses SHA-384 or SHA-512. Hash the asset, paste the digest into your script tag's integrity attribute.
JS file → SRI digestSanity-check a backend hash
Server-side hash doesn't match what you expected? Hash the same input here to confirm the issue is in your code, not the inputs.
Backend digest vs local digestHash data for deduplication
Need a stable, short identifier for a piece of content? SHA-256 it. Same content always produces the same digest.
Content → dedupe key
04Quick tips
Hash safely.
Four rules to keep digests doing the right job.
- 01
Use SHA-256 by default
SHA-1 is deprecated for security work; SHA-256 is the modern baseline. Reach for SHA-384/512 only when you need a longer digest.
- 02
Hashing is not encryption
A hash is one-way. You can verify input matches a digest, but you can't recover the original. Don't use hashing where you actually need encryption.
- 03
Salt before you hash passwords
A raw SHA-256 of a password is brute-forceable. Real password storage uses bcrypt, scrypt, or Argon2 with a unique salt per user.
- 04
Constant-time comparison
When checking a digest in production code, compare with a constant-time function. String equality leaks information through timing.
05Loved by
Security, DevOps, and backend.
Verifying installer checksums during procurement reviews. Faster than spinning up shasum in a terminal, and I get all four algorithms side by side.
Pinning new vendor scripts with SRI hashes. Drop the JS in, copy the SHA-384, done. Used to be a terminal-and-pipe dance.
Debugging an ETag mismatch between two services. Hashed the same body in both, found the encoding difference. Saved an afternoon.
06Questions
Hashing, plainly answered.
Common questions before your first digest. Missing one? hello@wirelogs.com.
01What's the difference between SHA-1 and SHA-256?
Both produce a fixed-length fingerprint, but SHA-1 (160-bit) has known collision attacks and is no longer safe for security purposes. SHA-256 (256-bit) is the current standard for everything from TLS to Git's newer object format.
02Can I recover the original text from a hash?
No. Hashing is one-way by design. You can confirm that a known input matches a digest, but the digest itself reveals nothing structural about the input.
03Why do I get different digests for the same string?
Almost always whitespace. A trailing newline, a tab vs spaces, or smart quotes from a paste will change the bytes — and therefore the hash. Compare the exact byte content.
04Does the tool send my input anywhere?
No. Hashing uses the browser's SubtleCrypto. Wirelogs never sees what you paste — useful for hashing internal IDs, tokens, or sensitive strings.
05Is this free?
Yes. No usage cap, no sign-up, no watermark. Hash as much as your day demands.
06Can I hash binary files?
This tool focuses on text input. For binary files (images, installers, archives), use `shasum -a 256 file` in a terminal — it reads the file directly and produces the same digest.
Ready when you are
Get the digest right.
Paste your text above, pick an algorithm, copy the hex. Nothing uploads anywhere.
- 4algorithms
- Localprivate
- $0now and always