Hash Generator - SHA-1, SHA-256, SHA-384, SHA-512 (Text & File)

Compute SHA-1, SHA-256, SHA-384 and SHA-512 hex digests of any text or file. Uses the browser's built-in Web Crypto API — your data never leaves your device.

Paste text to hash…

or drop any file

Files are auto-deleted after processingNo watermarksFree to use — no signup required

Frequently Asked Questions

SHA-1, SHA-256, SHA-384 and SHA-512 — every algorithm exposed by the browser's Web Crypto API. The digest is shown as a lowercase hexadecimal string, which is the format expected by checksum files, package manifests and HMAC tooling.

features

They differ in output length and design generation. SHA-256 is the modern default for integrity checks and most blockchain use. SHA-384 and SHA-512 produce longer digests that resist length-extension attacks. SHA-1 is shown for legacy compatibility but is no longer considered safe against collision attacks.

technical

MD5 is broken: collision attacks are practical on a laptop, so it must not be used for security-sensitive work. We intentionally omit it to discourage new code from depending on it. For non-security uses like cache keys, prefer SHA-256 truncated to the size you need.

technical

Both. Paste a string or drop a file into the input box — the tool reads the file as a binary stream and feeds it directly to the hashing API, so the digest matches the one produced by sha256sum, openssl dgst or PowerShell's Get-FileHash.

features

No. Cryptographic hashes are one-way functions: given a digest, there is no efficient way to recover the input. That is the entire point — integrity checks, password storage and signatures all rely on this property.

technical

No. The Web Crypto API runs the hash inside your browser, so the input never crosses the network. That makes the tool safe for secrets, private keys and any file you would not want to upload.

privacy

How Hash Generator helps you get it done

Real problems it solves every day — for businesses, creators, and everyday tasks. Find the use case that fits you and start in seconds.

Everyday Use

Verify File Integrity After Download

Compute the SHA-256 digest of an ISO, installer or release artifact and compare it with the publisher's checksum to confirm the file was not corrupted or tampered with

Everyday Use

Detect Duplicates in Large Image Libraries

Hash files to find duplicate photos, documents or assets across folders, NAS shares and cloud drives without comparing them byte-by-byte every time

For Developers

Sign & Validate Webhook Payloads

Generate the SHA-256 digest of a webhook body to validate Stripe, GitHub, Shopify and Twilio HMAC signatures during local integration work and debugging

For Business

Fingerprint Software Releases for Auditing

Produce SHA-512 fingerprints for binaries, container images and release tarballs so compliance teams can audit which exact build shipped to which customer

Web & SEO

Generate Cache Keys & ETags

Hash request bodies, query parameters or file contents to derive deterministic cache keys for Redis, Cloudflare Workers and CDN ETag headers

Everyday Use

Confirm Backup Integrity Over Time

Store SHA-256 digests of monthly backups and re-hash them later to confirm bit-rot has not silently corrupted critical archives on long-term storage media