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HMCL vs OpenMetadata

HMCL and OpenMetadata share 5 technologies: commonmark-ext-autolink, commonmark-ext-gfm-strikethrough, commonmark-ext-gfm-tables, org.jsoup:jsoup, and org.commonmark:commonmark. Both are written in Java.

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What they share and what sets them apart

HMCL-dev

HMCL

A Minecraft Launcher which is multi-functional, cross-platform and popular

Java11kRead on November 12, 2026, at commit bd6770cWhat is HMCL built with?

In common

open-metadata

OpenMetadata

The Open Context Layer for Data and AI , OpenMetadata is the open platform for building trusted data context and business semantics for humans, AI assistants, and agents.

Java15.7kRead on November 7, 2026, at commit 3aaedcaWhat is OpenMetadata built with?

Only in OpenMetadata

Side by side

SizeLines written by people and agents, without generated ones; code files, without tests.
HMCL189,064 lines written892 code files
OpenMetadata2,166,002 lines written4,688 code files
Who writes itA commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch.
HMCL0.5% of its commits signed by AIWith GitHub Copilot and Gemini CLI
OpenMetadata8.8% of its commits signed by AIWith Claude Code, GitHub Copilot, Cursor, and Jules
ActivityFrom GitHub and its history, on the day SeeRepo read it.
HMCLLast push November 12, 20265,126 commits10,959 stars
OpenMetadataLast push November 7, 202620,467 commits15,711 stars
TestsThe files that test the code, and the share of code files a test imports.
HMCL94 test files23.1% of its code files have a test that imports them
OpenMetadata4,066 test files62.6% of its code files have a test that imports them

Frequently asked questions

Which is bigger, HMCL or OpenMetadata?
OpenMetadata, with 2,166,002 lines written; HMCL has 189,064.

The proof: open-metadata/OpenMetadata's code at commit 3aaedca

Which has more GitHub stars, HMCL or OpenMetadata?
OpenMetadata, with 15,711 stars; HMCL has 10,959.

The proof: open-metadata/OpenMetadata on GitHub

Which has more tests, HMCL or OpenMetadata?
OpenMetadata, with 4,066 test files; HMCL has 94.

The proof: open-metadata/OpenMetadata's code at commit 3aaedca

Which was updated more recently, HMCL or OpenMetadata?
HMCL: its last push was on November 12, 2026, and OpenMetadata's on November 7, 2026.

The proof: HMCL-dev/HMCL's commits on GitHub

Which has more commits signed by AI, HMCL or OpenMetadata?
OpenMetadata: an AI signed 8.8% of its commits, with Claude Code, GitHub Copilot, Cursor, and Jules; in HMCL, 0.5%.

The proof: the commits each tool signed in open-metadata/OpenMetadata

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