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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.
https://github.com/IntenseSunlight/replika_backup_colab I used this long ago but haven't verified if it still works, though I don't think that'll be an issue since it's based on the one above.
https://github.com/almost2late/replika-export simpler, but exports a JSON file, which might not be user friendly/readable for some.
https://github.com/devidw/replika-diary-export diary only. JSON export.
https://github.com/devidw/replika-chat-export similar process to the first, but uses JS instead of Python. Also has a paid version that's probably more user friendly.