Download HMCL
Choose the build that matches your operating system, verify integrity with SHA256 when checksums are published for your file, and keep a local copy of release notes so you can trace changes over time.
Latest release line
Public metadata for HMCL frequently lists 3.13.2 as a recent stable line on community mirrors. Version numbers advance as maintainers ship fixes and compatibility updates. Always read the release notes packaged with the exact file you download.
- Typical Windows artifact size
- Near 9 to 10 MB
- Size varies by channel, compression, and bundled resources.
- License
- GPLv3
- Source drops often ship as zip and tar.gz archives alongside binaries.
Source transparency
HMCL is GPLv3 software. That means you can inspect source, build from source, and compare behavior with community expectations. This website does not host a live repository link, yet the license itself is the anchor for trust: redistribution and modification carry legal conditions that protect user freedom.
What you should look for in a legitimate build
- Release notes that match the version string embedded in the binary.
- Checksums published next to the exact file name you fetched.
- Consistent publisher story: either well-known maintainers or your own reproducible build pipeline.
SHA256 checksums and signatures
Why SHA256 matters
SHA256 is a fingerprint for a file. If a single byte changes, the hash changes. When maintainers publish a hash for a release artifact, you can recompute the hash locally and confirm you received the same bytes they intended to ship.
Windows PowerShell example:
Get-FileHash .\HMCL.exe -Algorithm SHA256
Compare the printed hash to the published value for that exact file name. If they differ, delete the file and download again from a trusted channel.
Code signing reality
Many open-source projects rotate certificates or ship portable executables without a costly signing chain. SmartScreen and antivirus heuristics may still warn even when the binary is legitimate. Signing reduces warnings but does not replace hash verification and supply-chain discipline.
When signatures exist, validate the certificate subject and thumbprint against release documentation you trust. When signatures do not exist, rely on hashes, reproducible builds, and community reputation signals.
Antivirus false positives
Launchers download other programs, touch many files, and sometimes bundle Java discovery logic. That behavior resembles generic droppers in heuristic models. False positives are common in this software category even for reputable tools.
Reduce risk
Download only from channels you personally trust, verify hashes, keep Windows Defender signatures current, and prefer isolated test machines for first-run experiments.
If detection persists
Follow the Guides page for structured steps: quarantine review, hash comparison, alternate packaging formats, and escalation paths your organization allows.
Related: Antivirus chapter and FAQ on scanners.
Security and integrity checklist
- Record the file name, version string, and download date in a text file you keep next to the installer.
- Compute SHA256 and store the hash line in the same text file after a successful match.
- Launch once while offline if you want to observe first-run behavior without background updaters.
- Create a dedicated instance folder layout before importing large mod packs.
- Review Trust for ethics, acceptable use, and responsibility boundaries.