FLUXA Open app

Free · Open source · Works offline

Learn a language one card at a time.

FLUXA helps you learn languages with interactive flashcards. Each card can use text, pictures, your own voice recordings or YouTube clips, so you read, see, hear and watch the language in real use.

Start learning in your browser Download the app

No account. No ads. Your decks never leave your device unless you share them.

See it in action

Make a card in seconds, then practise it.

Open a deck, add a card, and it's ready to review. Tap to flip, then mark it “Got it” or “Not yet”. Cards you miss come back until you know them.

Try it yourself
FLUXA home screen listing Shona, Ndebele and Portuguese decks
Your decks, on your device
Choosing a card type: text, image, audio or YouTube
Text, image, audio or YouTube
Review mode showing the answer side of a card with Not yet and Got it buttons
Flip, then “Got it” or “Not yet”
Language picker showing Shona and its dialects such as Zezuru, Karanga and Korekore
Thousands of languages and dialects

Four kinds of cards

Mix them in one deck and learn a word the way you'll meet it in real life.

Text

A word or question on the front and the meaning on the back, with example sentences if you like.

Pictures

Snap the market stall, the menu or the street sign, then ask yourself what's in it.

Audio

Record a friend, a teacher or yourself. Train your ear with real voices and accents.

YouTube clips

Pick the exact seconds of a scene, song or interview. The card plays just that moment.

Made for real learning

Flip, check, repeat

Tap to flip, then mark each card “Got it” or “Not yet”. Cards you miss come back later in the session until you know them, and you can practise just those afterwards.

Almost every language

Pick from about 8,700 languages and 13,600 dialects: Shona, Zezuru, Brazilian Portuguese, Egyptian Arabic, Latin, even Klingon. Search by country to find what's spoken there.

Private and offline

No sign-up and no servers. Everything is stored on your device and works without internet. Only YouTube clips need a connection.

One file to share

Export any deck as a single .fluxa file, with its pictures and recordings inside. Send it on WhatsApp, email or Drive. It opens in FLUXA on any device.

Community decks

Make a deck. Help someone learn.

The best decks come from people who live the language: the phrases your grandmother uses, the slang from your city, the words you needed at the market. Share yours and it can help a learner anywhere in the world.

  1. Create a deck in FLUXA with any mix of text, pictures, audio and clips.
  2. Export it as a .fluxa file from the deck screen.
  3. Share it with friends directly, or submit it to the community library on GitHub so everyone can find it.
Share a deck How sharing works
Community library

Coming soon. Shared decks will appear here, searchable by language and country.

Be one of the first: submit a deck and it'll be here when the library opens.

Get FLUXA

The same app everywhere. Your decks move between devices as .fluxa files.

Web Runs in any modern browser. Install it from the address bar to use it offline. Open app → Windows Windows 10 and 11. Small installer, about 2 MB. Download .exe → macOS Apple Silicon and Intel Macs, macOS 10.15 or newer. Download .dmg → Linux AppImage for any distro, plus .deb and .rpm packages. Download →

On Android, open the web app in Chrome and tap “Add to Home screen”. On iPhone and iPad, open it in Safari, then tap Share and “Add to Home Screen”. Desktop installers aren't code-signed yet, so Windows and macOS may warn you the first time you open them.

Free and open source, for good

FLUXA is MIT-licensed. Anyone can use it, study it, translate it or build on it. The .fluxa format is openly documented so other apps can read your decks too.

View on GitHub Read the file format