Keel Fingerprint
The SHA-256 hash value of any file. Your file stays in your browser; it is never uploaded.
Drop a file here
or
Keel Fingerprint uses your browser's built-in Web Crypto. Load the page, turn off your internet, and it still works.
What a hash value is
A hash function reads a file and produces a short string of letters and numbers. The same file always gives the same string; change one character and the string changes completely. In May 2026 the Supreme Court described a hash value as "synonymous with an electronic fingerprint".
Where you will need it
A certificate under s.63(4) of the Bharatiya Sakshya Adhiniyam records the hash value of the electronic record and the algorithm used, in Part A (filled by the party) and Part B (filled by an expert). More on the certificate.
What it shows, and what it does not
A matching hash shows that a file has not changed since the value was noted. It does not show that what is inside the file is true, who made it, or when.