Wikidata is a free and open knowledge base that can be read and edited by both humans and machines.
Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Online

Wikidata is a free and open knowledge base that can be read and edited by both humans and machines.

Repair your Mac or iPod yourself. iFixit sells parts and upgrades for your iPod, PowerBook, iBook, or MacBook with free Fixit Guides.
Translate text, voice, audio, images, documents, and web pages in 112+ languages even without internet. Save bookmarks, sync across devices.




Snowball lets you quickly find and filter through papers using the snowballing method. Start with a core collection of papers, and find more by going through their citations and references.

Imprint: Learn Visually is a visual learning platform offering courses, quick reads, and visual guides to bestselling books in various fields such as psychology, philosophy, history, finance, leadership, business, health, science, and technology.




Feed your brain, not the algorithm. Use the power of AI to create lessons, share them, and inspire others.



Repeto.ai is an AI learning platform that helps students, researchers and professionals learn better. This is done through personalization. The student uploads their own documents and we help them study those effectively using tailored summaries, personalized Q&A, quiz...




Quizfreely is a free and open source learning app with flashcards, practice tests, and studying games/activities. There are unlimited practice tests for free on Quizfreely, unlike other flashcard websites or studying apps.




Powerful and easy-to-use online Japanese-English dictionary with words, kanji and example sentences, among other features, like sentence parsing and inflection info.




Guru is a company wiki that works in your workflow, so the information you need to do your job is always at your fingertips.

Cratecode is a website that helps people learn to code. It uses interactive online lessons and videos to teach web development and JavaScript. One of its main strategies is non-linear-learning, which allows students to take their own programming journey and learn what they want...

The only internet-enabled AI assistant that understands every website. Ask questions, write, & summarize anything. Uses ChatGPT.




Get details on arguments for commandline tools through explainshell's sleek, web-based interface. The web app is totally free and source code is available for download through GitHub.


The best way to organize education by tutorials from YouTube. The extension extends the functionality of YouTube: adds the opportunity for collecting playlists as courses, tracking the progress of training, recommends relative courses and more.



Unified environment enables schematic capture, PCB layout, mixed-signal simulation, signal integrity analysis, real-time 3D editing, and ECAD-MCAD collaboration.




Elicit is an AI-powered research assistant designed to help users efficiently discover, organize, and analyze academic papers and insights.




Spotter Studio provides Creators with an integrated solution for video brainstorming, research, and project planning. It's your all-in-one place to develop and organize high-performing video concepts, titles, and thumbnails solo or collaboratively with others.




SpanishDict is a Spanish-learning website that offers a Spanish to English dictionary, a Spanish-English translator, video lessons, flashcards, and more.



TTSMaker is a free text-to-speech tool that provides speech synthesis services, supports multiple languages: English, French, German, Spanish, Arabic, Chinese, Japanese, Korean, Vietnamese... and a variety of voice styles, you can use it reads text and e-books aloud, and can...


Instantly transform course materials into interactive study sets with AI-generated tools like flashcards, quizzes, and personalized chat assistance.




InfraNodus can visualize any research notes, ideas, texts, even the Google search results on a certain topic as a text network. The words are the nodes and their co-occurrences are the connections between them.



Gummi is a lightweight LaTeX editor for the Linux/GTK+ platform, released as free open-source software. It is designed with simplicity in mind and includes features that will make a novice LaTeX user quickly become accustomed to this mark-up language.



A free, open-source language learning media player with editable subtitles (displayed on an interactive timeline), seamless Anki integration, instant dictionary lookups via Yomitan, study modes and more!.

All the most useful Rules of Algebra in one place: easy to understand, free, searchable, ad-free, open-source, and accompanied by informative descriptions & examples.

