Apps with '0data' feature

TiddlyWiki is a single html file with all the characteristics of a wiki - including all of the functionality (including editing, saving, tagging and searching) and the style sheet. Because its a single file, its very portable - you can email it, put it on a web server or share...

Full-featured, open-source Markdown editor based on PageDown, the Markdown library used by Stack Overflow and the other Stack Exchange sites.

An open protocol for per-user storage on the Web.

Turn your notes into a website.

Encryptic is an open-source note-taking application heavily focused on encryption. When you start writing, no one will know what you write except for you. We don’t know and we don’t want to know. That’s between you and your work.

Webmarks is a bookmarking app, focused on speed, privacy and ease of use. It allows you to create an archive of Web addresses (URLs), which you can tag and search, and which you can access from any of your devices.

A pinboard for media.

Litewrite was built out of a need to have a simple way of taking notes, having them everywhere, working on any device, regardless if on- or offline.

A music player that connects to your cloud/distributed storage, in the form of a static, serverless, web application.

Measure your progress.

Customize the web with JavaScript or CSS.

Flashcards / Spaced Repetition System with text-to-speech.