Source: https://seerepo.com/compare/HMCL-dev/HMCL/vs/open-metadata/OpenMetadata Markdown source: https://seerepo.com/compare/HMCL-dev/HMCL/vs/open-metadata/OpenMetadata.md Description: 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. # 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. - [HMCL-dev/HMCL](https://seerepo.com/r/HMCL-dev/HMCL): A Minecraft Launcher which is multi-functional, cross-platform and popular - [open-metadata/OpenMetadata](https://seerepo.com/r/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. ## What they share and what sets them apart - In common: commonmark-ext-autolink, commonmark-ext-gfm-strikethrough, commonmark-ext-gfm-tables, org.jsoup:jsoup, org.commonmark:commonmark - Only in HMCL: None - Only in OpenMetadata: React, Vite, JAX-RS, Flask, org.glassfish.jersey.media:jersey-media-multipart, apache-client, com.mysql:mysql-connector-j, docker-java-transport-zerodep, elasticache, lettuce-core, org.flywaydb:flyway-mysql, PostgreSQL, redshift-jdbc42, s3, tomcat-jdbc, Redis, Postgres, com.zaxxer:HikariCP, Flyway, MySQL, com.azure:azure-storage-blob, net.jodah:expiringmap, software.amazon.awssdk:rds, Elasticsearch, Google, javax.ws.rs-api, jersey-container-servlet, jersey-media-json-jackson, jersey-server, jetty-bom, jetty-ee10-bom, jetty-ee10-servlets, org.springframework:spring-beans, jakarta.servlet:jakarta.servlet-api, io.dropwizard:dropwizard-core, Spring, org.eclipse.jetty:jetty-server, org.eclipse.jetty.ee10:jetty-ee10-servlet, org.eclipse.jetty:jetty-http, org.eclipse.jetty:jetty-util, javax.servlet:javax.servlet-api, org.eclipse.jetty:jetty-io, Tailwind CSS, guicey-jdbi3, jdbi3-sqlobject, jsqlparser, org.jdbi:jdbi3-core, io.dropwizard:dropwizard-jdbi3, com.google.auth:google-auth-library-oauth2-http, google-oauth-client, java-jwt, nimbus-jose-jwt, oauth2-oidc-sdk, software.amazon.awssdk:auth, com.unboundid:unboundid-ldapsdk, com.azure:azure-identity, com.microsoft.azure:msal4j, org.passay:passay, software.amazon.awssdk:secretsmanager, software.amazon.awssdk:sts, Model Context Protocol, io.modelcontextprotocol.sdk:mcp-json-jackson2, angus-mail, owasp-java-html-sanitizer, poi-ooxml, com.github.jknack:handlebars, Apache, org.freemarker:freemarker, com.opencsv:opencsv, com.vladsch.flexmark:flexmark-html2md-converter, org.apache.pdfbox:pdfbox, org.apache.poi:poi, org.simplejavamail:simple-java-mail, everit-json-schema, jakarta.validation:jakarta.validation-api, com.networknt:json-schema-validator, org.jsonschema2pojo:jsonschema2pojo-core, javax.validation:validation-api, Hibernate, log4j-core, metrics-core, micrometer-observation, micrometer-registry-prometheus, OpenTelemetry, Prometheus, slf4j-simple, org.slf4j:slf4j-api, io.micrometer:micrometer-core, io.fabric8:kubernetes-client, ch.qos.logback:logback-classic, ch.qos.logback:logback-core, io.kubernetes:client-java, org.apache.logging.log4j:log4j-api, software.amazon.awssdk:ssm ## Side by side | | HMCL | OpenMetadata | |---|---|---| | Size | 189,064 lines written, 892 code files | 2,166,002 lines written, 4,688 code files | | Who writes it | 0.5% of its commits signed by AI. With GitHub Copilot and Gemini CLI | 8.8% of its commits signed by AI. With Claude Code, GitHub Copilot, Cursor, and Jules | | Activity | Last push November 12, 2026, 5,126 commits, 10,959 stars | Last push November 7, 2026, 20,467 commits, 15,711 stars | | Tests | 94 test files. 23.1% of its code files have a test that imports them | 4,066 test files. 62.6% of its code files have a test that imports them | - Size: Lines written by people and agents, without generated ones; code files, without tests. - Who writes it: A commit counts as AI's when it carries its signature: a Co-Authored-By line, its author name or the merge of its branch. - Activity: From GitHub and its history, on the day SeeRepo read it. - Tests: The files that test the code, and the share of code files a test imports. ## 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](https://github.com/open-metadata/OpenMetadata/tree/3aaedcaaf8705462a8cdc74d01fde259dd56eba7) ### Which has more GitHub stars, HMCL or OpenMetadata? OpenMetadata, with 15,711 stars; HMCL has 10,959. The proof: [open-metadata/OpenMetadata on GitHub](https://github.com/open-metadata/OpenMetadata) ### 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](https://github.com/open-metadata/OpenMetadata/tree/3aaedcaaf8705462a8cdc74d01fde259dd56eba7) ### 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](https://github.com/HMCL-dev/HMCL/commits) ### 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](https://seerepo.com/r/open-metadata/OpenMetadata/ai) ## Sources - HMCL-dev/HMCL: Read on November 12, 2026, at commit bd6770c (https://github.com/HMCL-dev/HMCL/tree/bd6770c473efed13edba7127fec09e7f82267a0a) - open-metadata/OpenMetadata: Read on November 7, 2026, at commit 3aaedca (https://github.com/open-metadata/OpenMetadata/tree/3aaedcaaf8705462a8cdc74d01fde259dd56eba7) ## What is your repo built with? Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.