Hash Toolkit · Client-side security
BKDR File Hash Generator
Hash any local file with BKDRHash to generate quick fingerprints for deduplication, caching, or lookup workflows. Everything runs inside your browser session, so no file data is uploaded. Need to hash text instead? Try the BKDR text tool →
File BKDR Hash
Stream BKDRHash over any file entirely within this browser tab. Results never leave your device.
Accepts decimal or hexadecimal input (prefix with 0x). Defaults to 131 when left blank.
Upload a file
Click to browse or drag & drop files here
Select a file to compute its BKDR hash.
Select a file and enter a target hash to validate.
BKDR for rapid integrity checks
BKDRHash is a non-cryptographic 32-bit rolling hash that excels at quick file fingerprints, cache keys, and deduplication checks.
For tamper-evident workflows or higher collision resistance, pair BKDR with SHA-2/3, BLAKE3, or other cryptographic digests also available in CipherTools.
Close or refresh this tab to clear any file references kept in memory.