AI · alternatives · 2026
24 alternatives to Harken Chrome Extension
Remember every article you read online, forever
Harken is a Chrome extension that helps users retain information from articles they read online. It generates multiple-choice questions about articles with a single click, which users can then add to Harken's spaced… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Harken Chrome Extension launched in 2023; newer entries below may have overtaken it.
- 1
Harken▲106Spaced repetition flashcard app that makes remembering easy
2021 · harkenapp.com · its alternatives →
- 2
Active Recall▲1,078Chat with everything you’ve read, heard, watched, or noted
2024 · recall.it · its alternatives →
- 3
Carden▲258Science-based flashcard app with spaced repetition
2021 · chromewebstore.google.com · its alternatives →
- 4
Summarize, connect and organize ALL your online content
2023 · recall.it · its alternatives →
- 5
Wiseone▲410All-in-one tool for better reading & web search experience
2023 · chromewebstore.google.com · its alternatives →
- 6
- 7
Traverse▲324Learn new skills faster with 290% better recall
2021 · traverse.link · its alternatives →
- 8
I have a dedicated HN tab that I come back to and reload multiple times a day to see whats new and hot. I wrote a Chrome Extension to: - quickly scan new articles since my last reload - quickly scan highly discussed articles - open actual articles and discussions in a new tab This links to the source code. The chrome extension is linked at the bottom of the github page. Note: - This extension only operates on the HN front page (https://news.ycombinator.com/news) - The first time you reload the HN front page after installing the extension all articles will get highlighted.
2024 · github.com · its alternatives →
- 9
Hi HN, I watch A LOT of educational YouTube videos but wasn't forgetting a good chunk of the details because I was only really passively watching. So I made a tool that generates quiz questions/flashcards from YouTube videos, and uses spaced repetition like Anki or Duolingo to keep it in memory. Let me know if you find it cool/useful (or terrible ) or if you want to know a bit about the details!
2024 · platoedu.org · its alternatives →
- 10
Hey HN, I am a student shipping apps in my free time. This is my 4th for the year! Non-fic books and podcasts have been part of my life for years now but I always struggled with remembering what I’ve read or listened to. I wanted it to stick even after years. My notes list grew large but I never really revisited them. That’s why I created GinkgoNotes. You can enter notes you want to recall and leave it to the app to create a personalised (based on spaced repetition) email schedule. That means you’ll get your notes emailed to you a couple of times exactly when you should read them again…
2024 · ginkgonotes.com · its alternatives →
- 11
ReadPilot▲303Read any webpage in 1 minute, with only 1 click
2023 · chromewebstore.google.com · its alternatives →
- 12
Slid▲119Capture knowledge from online videos, courses, and webinars
2021 · slid.cc · its alternatives →
- 13
AtomicVocab▲91Expand your vocabulary, one tab at a time
2023 · chromewebstore.google.com · its alternatives →
- 14
Remember what your read. Little time, lots of knowledge.
2015 · gethibou.com · its alternatives →
- 15
- 16
I've been working on this tool that lets you build a personal knowledge graph from articles, blog posts, podcasts, YouTube videos, and other content you find interesting online. You can safely forget everything and trust that Recall will resurface it when something new that is related comes up. Looking forward to your thoughts and feedback on how it could be improved! The original version of Recall was posted last year nov on HN: https://news.ycombinator.com/item?id=33425947 Since then I have pivoted to a browser extension.
2023 · recall.wiki · its alternatives →
- 17
HN is all about the rich discussions. We wanted to take the HN experience one step further - to bring the familiar keyboard-first navigation, find interesting viewpoints in the threads and get a gist of long threads so that we can decide which rabbit holes to explore. So we built HN Companion a year ago, and have been refining it ever since. Try it: https://app.hncompanion.com or available as an extension for Firefox / Chrome: [0]. Most AI summarization strips the voices from conversations by flattening threads into a wall of text. This kills the joy of reading HN discussions.…
Feb 2026 · hncompanion.com · its alternatives →
- 18
Hi HN, Just wanted to share a tool i've been working on to help with my own study routine. It’s a browser extension called Lingoku. The idea is simple: we spend hours browsing the web in English every day. This tool replaces some of the english words with Japanese vocabulary based on your japanese level (Similar to Toucan, but with a better user experience). It’s basically an attempt to make the "i+1" method actually passive, you understand the sentence because it's mostly english, but you pick up Japanese words naturally from the context. It uses an LLM in the backend to make sure the…
Dec 2025 · lingoku.ai · its alternatives →
- 19
I was struggling with navigating HN discussions using existing solutions, so I decided to implement a completely different approach, think of it as depth-first reading vs breadth-first reading. Visually it looks like swipeable stacks of comments and it offers several advantages over traditional interfaces: - Comment width doesn't get narrower no matter how deep in the comment tree you are - You always see the parent of the comment you're currently reading - Swiping allows you to move in and out of subtrees with animated transitions that you fully control - You can easily skip subtrees that…
2023 · apps.apple.com · its alternatives →
- 20ST
2020 · hndex.ml · its alternatives →
- 21
7reads▲119A minimal mindful reading list for Google Chrome.
2020 · 7reads.vercel.app · its alternatives →
- 22
Capture your learning instantly within a browser
2018 · getdnote.com · its alternatives →
- 23
Learn vocabulary while surfing the web
2019 · burningvocabulary.com · its alternatives →
- 24
Save articles for reading later
2018 · chromewebstore.google.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →