MD5Calc Hash Calculator

All tools on MD5Calc

Everything on this site runs 100% in your browser. No uploads, no accounts, nothing sent anywhere.

MD5Calc (main tool) Free, 100% client-side hash calculator. Compute MD5, SHA-1, SHA-256 and SHA-512 of text, hash files, calculate HMACs, and compare digests. Zero servers, 100% private. Primary tool HMAC Calculator (SHA-256, SHA-1, SHA-512, MD5) Compute an HMAC of a message with a secret key using SHA-256, SHA-512, SHA-1 or MD5, in your browser. Text or hex keys; matches OpenSSL and Node. The key never leaves the page. Tool File Hash Calculator (MD5, SHA-1, SHA-256, SHA-512) Compute the MD5, SHA-1, SHA-256 and SHA-512 checksum of a file in your browser, to verify a download. The file is read locally and never uploaded. Limit 256 MB. Tool Hash Comparison Tool Compare two checksums without eyeballing them: case, spaces, colons and a sha256: prefix are ignored, the algorithm is named from the length, and the first differing position is shown. Runs in your browser. Tool

Looking for explanations rather than a tool? MD5Calc guides cover 2 worked examples and gotchas.

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