Online hash calculator: SHA-1, SHA-256, SHA-384, SHA-512. Powered by Web Crypto API, computed locally in browser.
TL;DR: Free online hash calculator supporting SHA-1, SHA-256, SHA-384, and SHA-512. Powered by Web Crypto API for secure local computation. Data never leaves your browser, no registration.
This tool runs entirely in your browser. Open DevTools → Network panel and search your input — it appears in no request.
FAQ
Completely free, no registration required. Calculate hash values directly in your browser — all operations run locally with no usage limits.
It supports SHA-1, SHA-256, SHA-384, and SHA-512, built on the browser native Web Crypto API for fast and secure computation.
No. All hash calculations run locally in your browser. Your input text is never sent to any server, ensuring privacy.
SHA-256 is a more secure hash algorithm producing 256-bit hashes with strong collision resistance. MD5 produces 128-bit hashes and is proven insecure — not recommended for security purposes.
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