MD5-Algo-Check is a lightweight, cross-platform utility by Hans-Joachim Schlingensief for computing and verifying MD5 checksums. It helps you confirm file integrity after downloads, backups, and transfers by generating hashes, comparing them against known values, and producing clear reports you can trust in everyday workflows.
Key features
- Compute MD5 hashes for files and text input
- Verify files against known hashes or .md5 manifest files
- Batch processing with optional recursive directory scanning
- Generate manifest files for collections of files
- Clear pass/fail reports with meaningful exit codes for scripting
- Fast, multi-threaded hashing for large datasets
- JSON/CSV/plain-text output for easy integration
- Handles large files and Unicode file paths
- Portable binary with minimal dependencies (Windows, macOS, Linux)
Common use cases
- Verifying downloads from mirrors or third-party sources
- Checking backups and archives for silent corruption
- Validating file integrity after network or external drive transfers
- Creating and auditing hash manifests for release pipelines
Important note on security
MD5 is considered cryptographically broken and should not be used for security-sensitive purposes such as digital signatures, password storage, or tamper-proofing in adversarial settings. For security-critical applications, prefer SHA-256 or stronger algorithms. MD5-Algo-Check is intended for non-adversarial integrity checks and educational or legacy compatibility scenarios.
Basic usage examples
- Generate a hash: md5-algo-check file.iso
- Verify against a known value: md5-algo-check verify file.iso --hash 1bc29b36f623ba82aaf6724fd3b16718
- Create a manifest: md5-algo-check manifest ./folder > checksums.md5
- Validate a manifest: md5-algo-check verify --manifest checksums.md5
No data leaves your machine; hashing and verification are performed locally.
MD5-Algo-Check is developed by Hans-Joachim Schlingensief. The most popular version of this product among our users is 1.2.
Comments