Flashcard Online is described as 'Free web app to make printable flashcards in PDF. Text amd image templates. 2, 4 or 8 cards per list. Ready collection of best flashcards for learning' and is a Flashcard Learning Tool in the Education & Reference category. There are more than 50 alternatives to Flashcard Online, not only websites but also apps for a variety of platforms, including Android, iPhone, Windows and iPad. The best alternative is Anki, which is both free and Open Source. Other great sites and apps similar to Flashcard Online are AnkiDroid (Free, Open Source), Memrise (Freemium), RemNote (Freemium) and Mochi (Freemium).
Anki is a program which makes remembering things easy. Because it is a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying, or greatly increase the amount you learn.
Have fun while learning a foreign language with Memrise. The more you enjoy learning, the more (and quicker) your skills will develop. This is why entertainment mixed with real-life, relevant content is at the very core of the Memrise language learning experience.
RemNote is the note-taking tool that gives you memory superpowers. It automatically generates flashcards from your notes and figures out the optimal time to practice each flashcard so you don't forget what you've learned.
AnkiApp is a simple, efficient, flashcard app that lets you study at your own pace, whenever you have time. Study sessions are as quick as 1 minute or less. It works on phones, tablets, and desktop browsers, and synchronizes automatically between all your devices.
WordsKeeper is a simple web application for foreign language learners. It lets you build your own vocabulary, use definitions, examples, antonyms, synonyms and images. Keep everything in one place and group by category, create learning groups, share with other users.