1. Visualforce Table GridFlexible and highly customizable Visualforce table grid component. Salesforce.com Classic Look and Feel.
3. Apex DomainbuilderFramework to setup Apex test data in a highly flexible and readable way using the Test Data Builder pattern.
4. Apex ChainableChain Batches in a readable and flexible way without hardcoding the successor.
5. salesforce-plantumlSalesforce app to generate UML class & ER-diagrams from your org data. Leverages the PlantUML library.
6. app-setupLean framework to build flexible and modular Setup UI for your Salesforce Lightning and Classic app.