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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
DB3 is a community-driven layer2 decentralized database network. and if you are a developer, you can think db3 is a decentralized firebase firestore alternative. The other decentralized database includes: OrbitDB is a serverless, distributed, peer-to-peer database; the graph, a decentralized on-chain indexer; Locutus, a decentralized key-value database; ceramic network, a decentralized data network that brings unlimited data composability to Web3 applications; kwil, the first permissionless SQL database for the decentralized internet; spaceandtime, a decentralized data Warehouse