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Calculateur SHA

Calculate SHA-1, SHA-256, SHA-384 and SHA-512 checksums for text or files

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ℹ️ About this tool

This SHA Checksum Calculator runs entirely in your browser using the native Web Crypto API (crypto.subtle.digest). No data is ever uploaded or sent to any server — your text or file stays completely private. You can type or paste text, or upload any file (even large ones) to compute SHA-1, SHA-256, SHA-384, and SHA-512 digests simultaneously. Drag and drop is also supported.