ProofBit

ProofBit is an offline file-integrity verification tool that helps you confirm whether a downloaded file matches its expected checksum. Calculate SHA-256 fingerprints directly on your device without uploading files or using cloud services. Optionally generate SHA-1 and MD5 hashes, compare results with published checksums, copy or share verification reports, and review recent verification history. ProofBit is designed for privacy, speed, and reliable file verification.