Work · alternatives · 2026

24 alternatives to KnowledgeOS Beta

A personal knowledge graph in your browser: tabs, bookmarks

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. KnowledgeOS Beta launched in 2021; newer entries below may have overtaken it.

1
MdSilo – A knowledge silo that runs in your web browser▲153
mdSilo: Lightweight Personal Wiki on Desktop and Web
2022 · mdsilo.com · its alternatives →
2
tabOS▲118
All-in-one dashboards for tabs, notes, AI chats, and more
2024 · tabos.cloud · its alternatives →
3
SigmaOS▲1,026
The browser that makes YOU fast
2021 · sigmaos.com · its alternatives →
4
timeOS 2.0▲739
Really, really, ridiculously good meeting notes for macOS
2024 · timeless.day · its alternatives →
5
Lazy Search by SigmaOS▲399
Upgrade your Browser ✨
2022 · sigmaos.com · its alternatives →
6
Free Knowledge Base by Dashly▲201
Optimize your customer support with Knowledge Base by Dashly
2019 · dashly.io · its alternatives →
7
Personal Knowledge Base Visualization▲150
My personal knowledge base is hosted on GitHub at https://raphaelsty.github.io/knowledge/. It scans the documents I like every day using GitHub Action, Zotero, HackerNews upvote and Github Likes. It's not yet optimized for smartphones. It cost me $5 to host it for a year.
2024 · github.com · its alternatives →
8
eniston Knowledge Bases▲71
Simple yet powerful knowledge base software
2022 · eniston.io · its alternatives →
9
Build a personal knowledge graph from the content you consume online▲79
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 →
10
Learney▲93
Personalised learning for tech with knowledge graphs
2021 · learney.me · its alternatives →
11
Bookmark OS 2.0▲149
Powerful bookmark manager with AI and a browser-based GUI
2017 · bookmarkos.com · its alternatives →
12
Knowledge Base▲98
Smart knowledge base to support your customers and agents
2018 · knowledgebase.com · its alternatives →
13
Hare▲134
Better manage and search through your browser tabs
2020 · chromewebstore.google.com · its alternatives →
14
Highlights for Chrome▲75
Highlight as you read and create a personal knowledge repo
2019 · chromewebstore.google.com · its alternatives →
15
Slid▲119
Capture knowledge from online videos, courses, and webinars
2021 · slid.cc · its alternatives →
16
Knowledged App▲63
Knowledge management app for readers, writers, and thinkers
2022 · its alternatives →
17
Kozmos - Personal Library▲19
Bookmarking Used To Be Complicated... Not Anymore!
2017 · its alternatives →
18
Smart Chrome Tabs▲105
Smart tab grouping for a clutter-free browsing experience
2024 · its alternatives →
19
Bookmarker▲91
Use bookmarks instantly without leaving the browser tab
2022 · devapt.com · its alternatives →
20MT
My take on creating personal knowledge platform▲59
2023 · worldofthis.com · its alternatives →
21
Remember▲6
Never lose a link again
2025 · wellgrounded.us · its alternatives →
22KE
Knowledge engine – instant answers to any question▲48
2014 · quickanswers.io · its alternatives →
23
kozmos.cool▲6
The first bookmarking app you will love
2018 · cosmos.cool · its alternatives →
24
KnowledgeGraph▲2
Advanced Knowledge Base !
2024 · apps.apple.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 →