nowfound

Dev tools · June 15, 2021

Carden

Science-based flashcard app with spaced repetition

Carden launched on June 15, 2021 with 258 votes, #82 of 3,650 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 5 years on.

Visit chromewebstore.google.com ↗Carden alternativestop 2% of June 2021

In plain words

Carden is a Chrome Extension that converts web content into flashcards using spaced repetition to build long-term knowledge. Users can create cards in context while browsing, track learning progress with detailed statistics, earn points, and level up. Designed for learners and students who want to retain information from online sources, it combines an open-source approach with gamification elements to make studying more engaging and efficient.

written from the facts on this page · September 2026

From the sources

Carden is a Chrome Extension that helps you turn the content you consume into long-term knowledge. Create flashcards in context, view in-depth stats, collect points and level up, and much more.

Does a similar job

all alternatives →
  • Carden – Open source flashcard app w/ gamification & spaced repetition2021 · github.com · ▲8

    Flashcards with spaced repetition and gamification 🌱 - alyssaxuu/carden

  • Zorbi2021 · zorbi.com · ▲165

    Make spaced repetition flashcards from Notion or Chrome

  • Make spaced-repetition flashcards2021 · zorbi.cards · ▲118

    Flashcards that can predict when you'll forget them. Zorbi makes it easy for anyone to create flashcards from Chrome and note-taking tools like Notion.

  • memordo2020 · ▲118

    Spaced repetition tool to help you retain more knowledge

  • Decks2024 · decksapp.com · ▲182

    I’m building Decks, an application where you create study decks that consists of notes, flashcards, YouTube videos, and ChatGPT conversations. Notes and flashcards can be attached to YouTube videos. And your ChatGPT conversations are searchable and organizable through tags and folders. The concept is that this is study application where you can keep all your materials related to a subject in one place. Would appreciate any feedback you might have. Thanks!

  • GA
    Ginseng – a spaced repetition learning/flashcard web app2015 · eatginseng.com · ▲32

More dev tools this month

the category →
  • /dev/null▲472

    a social network for devs

    Dev tools · 2d ago · dev-null.sh

  • Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

    open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

    Dev tools · 27d ago · github.com

  • Reladraw – A diagram language where you decide where to place things▲411

    Contribute to reladraw/reladraw development by creating an account on GitHub.

    Dev tools · 25d ago · github.com

  • OpenBot▲362

    Grok Bot alternative: free, local, open-source, multiplayer

    Dev tools · 22d ago · openbot.run

  • Talanoa▲340

    Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

    Dev tools · 20d ago · talanoa.email

  • CoreSpeed▲332

    One MCP for everything your agents need: apps, memory, tools

    Dev tools · 27d ago · corespeed.io

Source: Product Hunt launch ↗

Launched alongside, June 2021

the whole month →