Free Client-Side Tool
Online SHA-256 Checksum Verifier
Calculate and verify cryptographic SHA-256 hashes directly in your browser. The file is processed locally in RAM; zero bytes are uploaded.
Choose or drop a file to compute its SHA-256 hashProcessed entirely inside your browser's WebCrypto API
What is a SHA-256 checksum?
A SHA-256 checksum is a 256-bit cryptographic fingerprint representing a file's exact binary contents. If even a single bit changes, the resulting hash changes completely (the avalanche effect). Software developers and security teams use checksums to verify that downloads have not been tampered with or corrupted in transit.
Send verified files with LimeShare
LimeShare checks the cryptographic integrity of every 4 MB chunk with AES-256-GCM authentication tags.
Send Encrypted Files