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Password Generator
Generate strong, random passwords locally in your browser.
Security
SHA-256 Generator
Compute a SHA-256 hash from any text or file — directly in your browser. Drop a file or paste text and get the hex digest instantly, with nothing ever leaving your device.
Hash something
SHA-256 digest
…
How it works
SHA-256, locally
Pick your input
Switch between Text mode to hash a string, or File mode to hash any file's raw bytes. The tool never cares what the content is — it just computes the digest.
Web Crypto API
Hashing uses your browser's built-in crypto.subtle.digest — the same battle-tested implementation browsers use for TLS, certificates, and secure storage.
Nothing leaves the browser
The entire operation runs on your device. No text, no file bytes, no digest is ever uploaded — your data stays private by design.
Questions
SHA-256 generator FAQ
What is SHA-256?
SHA-256 is a cryptographic hash function that produces a fixed 64-character hexadecimal digest from any input. It is one-way — you cannot reverse the hash back to the original data — and even a tiny change in the input produces a completely different digest.
Can I hash files (not just text)?
Yes. Switch to File mode and drop or select any file. The tool reads the raw bytes and computes the SHA-256 digest directly in your browser using the Web Crypto API — the file is never uploaded.
Is my data uploaded anywhere?
No. All hashing happens locally on your device. Neither the text you type nor the files you select are sent over the network — nothing leaves your browser.