Are my files uploaded?

No. Hashing runs in your browser with the Web Crypto API (MD5 uses a small local helper).

Should I still use MD5?

MD5 is fine for non-security checksums. Prefer SHA-256 or SHA-512 for integrity and security-sensitive checks.

Hex is the common checksum format for docs and CLIs. Base64 is useful when embedding digests in APIs or configs that expect Base64.

No. Digests are one-way fingerprints. Your text or file stays unchanged on disk.

Generate MD5, SHA-1, SHA-256, and SHA-512 digests for text or files — Web Crypto in your browser, nothing uploaded.

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Are my files uploaded?: No. Hashing runs in your browser with the Web Crypto API (MD5 uses a small local helper).
Should I still use MD5?: MD5 is fine for non-security checksums. Prefer SHA-256 or SHA-512 for integrity and security-sensitive checks.
Hex or Base64 — which digest format should I copy?: Hex is the common checksum format for docs and CLIs. Base64 is useful when embedding digests in APIs or configs that expect Base64.
Does hashing change my original file?: No. Digests are one-way fingerprints. Your text or file stays unchanged on disk.