Our great sponsors
-
taskwarrior-web
A web interface for the Taskwarrior todo application. Because being a neckbeard is only fun sometimes.
-
org-web
org-mode on the web, built with React, optimized for mobile, synced with Dropbox and Google Drive
-
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.
Have you looked at Taskwarrior's taskserver, and this web interface for it?
Another possibility is to use emacs org-mode, which is very flexible because it only uses plain text files - all the "smart" features are built into the emacs editor and can be extended/customized with emacs lisp. There is really no limit to the features it can support if you don't mind writing lisp. There is a web interface called org-web, or perhaps you could have emacsclient be the backend server for your own project.