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Turn your PDFs and notes into flashcards you can study anywhere

If you came looking for open-source Android flashcard code on GitHub, DeckOwl works differently. It builds a deck from your own material, so you study in the browser without compiling anything.

Create flashcards nowFree · No credit card required

Drop files here or browsePDF, DOCX, PPTX, text or photos of your notes · several files with Plus

Free · First set needs no signup · Creates flashcards in seconds

What to expect from a flashcard Android app on GitHub

Developers searching GitHub for a flashcard Android app usually want source code they can read, fork, and build in Android Studio. That is a good route if you plan to write or change an app yourself, but it does not give you flashcards from your own lecture notes.

Works from PDFs, slides, notes, and photos of pages, with no setup on your device
Cards follow spaced repetition, so you review what you are about to forget
Quizzes include explanations, so wrong answers teach you something
Students get 40% off with a school email, and no credit card is needed to start

Example Android and GitHub study flashcards

What is an Activity in Android?A single screen with a user interface, managed by the system through lifecycle callbacks such as onCreate.

What does git clone do?It copies a remote repository, including its full commit history, to your local machine.

Which file declares an Android app's permissions?AndroidManifest.xml, where permissions such as INTERNET are listed so the system knows what the app may use.

What is the purpose of a .gitignore file?It lists files and folders Git should not track, such as build outputs and local.properties, which holds machine-specific paths.

What does Gradle do in an Android project?It compiles code and packages the app into an APK or AAB, using the settings in build.gradle files.

Generate the full set

Upload what you already have

Add PDF, DOCX, PPTX, plain text notes, or photos of pages. Images are read with text recognition.

Spaced repetition built in

Cards come back at expanding intervals, so review time goes to the ones you are about to forget.

Quizzes and mind maps too

Get multiple choice, true/false, and short answer questions with explanations, plus mind maps of the same material.

How it works

Upload your material

Drop in a lecture PDF, slide deck, or set of notes for the topic you are studying.

Check the generated cards

Review the flashcards, then edit or remove any that do not match your course.

Study on a schedule

Use spaced repetition in the browser. Plus adds Anki and CSV export if you want to keep studying elsewhere.

DeckOwl takes the other approach: you upload the material you are learning from and get cards back. The free plan includes 3 generations per month with browser study. Plus, at $39/year or $7.99/month, removes the limit and adds PDF, DOCX, Anki, and CSV export.

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Frequently asked questions

Does DeckOwl include open-source Android code from GitHub?

No. DeckOwl generates flashcards, quizzes, and mind maps from your own material, and it does not host app source code. If you want Android code, GitHub repositories are the place to look.

How many flashcards should I make for an Android development topic?

Start with one card per term, command, or concept, such as the Activity lifecycle or a Git command. Smaller decks you review daily tend to work better than one large deck you rarely open.

Is there a free plan?

Yes. The free plan includes 3 generations per month and studying in the browser, with no card needed to start. Exports require a paid plan.

Can I export my flashcards to Anki?

Yes, on the Plus plan, which is $39/year or $7.99/month. Plus also includes PDF, DOCX, and CSV export and unlimited generations.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.