APK SHA-256 Verifier calculates and compares SHA-256 checksums entirely in the browser. Selected files remain on the device and are processed in 4 MB chunks; no upload or account is required. Paste an expected 64-character digest to receive match, difference, or invalid-format feedback, or compare two existing hashes without loading a file. A matching checksum confirms byte-for-byte identity with the reference, but it does not prove an APK is safe or authentic. The project includes...