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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.
Storing seed phrase. Definitely not. Loopring wallet, like our zkRollup, is 100% non-custodial. Self-custody is at the heart of everything we do :). As a smart contract wallet, there is no seed phrase at all actually! Your wallet is a smart contract controlled by guardians -- people (or other addresses/devices you control) that you choose yourself. These guardians are what is used to recover your wallet if you need (this is called social recovery). This is actually a super secure framework for wallets, and can have extra security features, like setting a daily transfer limit, whitelisted addresses you can send to, etc. It is a smart contract, so it is indeed a smart wallet with logic you can put in! Learn more about it here: https://github.com/Loopring/loopring.io.website/blob/main/public/markdown/walletdesign_en.md