· encryption
Verify an HMAC authentication code without exposing the secret key to the server.
Encryption
Checksums, encodings, text tweaks, and a few validators. Open a tool, paste your input, take the result.
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Verify an HMAC authentication code without exposing the secret key to the server.
Generate an HMAC authentication code for text or a file using a hexadecimal secret key.
Generate BLAKE3 hashes from text or uploaded files, 256-bit by default and any length up to 1,048,576 bytes, with optional keyed hashing.
Generate BLAKE2b digests at 128, 256, 384 or 512 bits, or any length from 1 to 64 bytes, from text or uploaded files. It runs inside your browser.
Generate BLAKE2s digests at 128, 160 or 256 bits, or any length from 1 to 32 bytes, from text or uploaded files. It runs inside your browser.
Generate Adler-32 checksums from text or uploaded files. Adler-32 is built for speed rather than security, and it runs inside your own browser.
Generate FNV-1 or FNV-1a 32-bit and 64-bit non-cryptographic hashes from text or uploaded files. It all runs inside your browser, on your device.
Generate CRC-32 checksums from text or uploaded files using ISO-HDLC, CRC-32C, BZIP2, MPEG-2, cksum and six more named variants, in your browser.
Generate CRC-64 checksums from text or uploaded files using the XZ, ECMA-182, Go-ISO, MS, NVMe, Redis or WE variant. It all runs in your browser.
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Verify an HMAC authentication code without exposing the secret key to the server.
Generate an HMAC authentication code for text or a file using a hexadecimal secret key.
Generate BLAKE3 hashes from text or uploaded files, 256-bit by default and any length up to 1,048,576 bytes, with optional keyed hashing.
Generate BLAKE2b digests at 128, 256, 384 or 512 bits, or any length from 1 to 64 bytes, from text or uploaded files. It runs inside your browser.
Generate BLAKE2s digests at 128, 160 or 256 bits, or any length from 1 to 32 bytes, from text or uploaded files. It runs inside your browser.
Generate Adler-32 checksums from text or uploaded files. Adler-32 is built for speed rather than security, and it runs inside your own browser.