Work · alternatives · 2026
24 alternatives to Seen – Virtual list rendering with 1M+ notes
Edit: Thank you so much for taking a look at Seen! Yes, I know, it's really slow. And scrolling does not render notes instantly. And the title is a bit clickbait-y. I'll try my best to improve on it though. This is just a preview, the most basic version of Seen, and it's getting there. But, oh God, I almost got a heart attack when I opened up Vercel Analytics and saw ~1,500 page views, up from 10 or 12. Thank you again! It's such a weird experience showing something to the world for the first time as a 16-year-old and seeing so many people look at it. Hello HN! I've been working on creating…
Seen is a note-taking app that demonstrates virtual list rendering to handle over one million notes in a masonry layout while minimizing CPU and memory usage. It includes client-side search and basic note creation… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
I'll remember▲107Visual to do lists because a picture is worth a 1000 words
2021 · apps.apple.com · its alternatives →
- 2
- 3IC
Hi! This is an infinite canvas note-taking tool where notes are laid out in a non-Euclidean, hyperbolic geometric space. As you drag and navigate through the view, you’ll experience a unique fluid distortion that naturally leverages your brain's spatial memory. I’ve been obsessed with the concept of space in HCI for years. Many modern UI patterns are essentially workarounds for the lack of screen real estate. While researching zoom-based UIs a while back, I stumbled upon old HCI papers that used the Poincaré disk model of the hyperbolic plane to organize data. It elegantly projects an…
Jun 2026 · uonr.github.io · its alternatives →
- 4
I got the idea of [mindmap.so](http://mindmap.so/) out of my own frustration of managing my personal notes in Notion and Miro in parallel. I have built it 3 months back on top of excalidraw, posted it in Reddit a couple of times, and never looked back (was using it only for personal use). Little did I know that the small and nimble tool that I created has crossed 2000+ users (was so surprised when I saw the dashboard last week). It was all organic and word of mouth . Having 2000+ users trusting a product is no easy feat. That’s when I thought may be I should put some more…
2024 · mindmap.so · its alternatives →
- 5
I figured, "what better way to look at a list of (hopefully) inspiring projects?" The upvotes work and are globally synced.
2024 · guycombinator.net · its alternatives →
- 6DV
Hi guys! I wanted to share the app I've been developing. DeepNotes is an open source, end-to-end encrypted visual note-taking tool with deep bidirectional page navigation and realtime collaboration. I'm making my note universe public in this link to showcase the possibilities with DeepNotes and show how I use it, and maybe help other people learn some stuff as well: https://deepnotes.app/pages/euYw8Xg1JJ1I1BOpWkuA5 Let me know what you think!
2023 · deepnotes.app · its alternatives →
- 7
It's dead simple. There's no fancy interface. Basic features are gone. That's all on purpose. If you're like me, you're always writing down ideas on pieces of paper. My webapp is like that, but for the internet. Let me know if you find it useful.
2012 · ideab.in · its alternatives →
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Sticky Notes▲10I've been wanting a simple sticky notes board as my browser's new tab page for ages. So last week I built one in half a day using Claude Code. It's written in Vue 3, client-only. The code quality honestly surprised me. I wrote an extensive prompt: what it should do, what it should look like, how I wanted the project set up, reusable components, composables, what I wanted and didn't want. Put Claude to work, went for a walk, came back to more or less what you see on the site. It wrote some code I would've done differently, but it also did useful things I hadn't thought of. No backend, no…
2024 · notionwithali.gumroad.com · its alternatives →
- 9
Hey hey! This is a tool I've worked on for a while, and it's reached the point I'm quite happy with the results! Comments and suggestions are appreciated :) Enjoy your day!
2023 · github.com · its alternatives →
- 10NA
2013 · noted.herokuapp.com · its alternatives →
- 11RO
I was lucky enough to have my site trending on Friday (https://news.ycombinator.com/item?id=25872922). It’s an icon site that lists open source icons. I wanted to share some stats on the results after 3 days. Worth noting was that I submitted it on a Friday morning (at which point I went for a walk and a coffee; eek). - 24,997 page views. I (embarrassingly) didn’t have GA set up when I first submitted it, so this is probably missing a few hundred page views - 21 “feedback” emails (half of which were spam). I assume such a high percentage of these were spam because my Feedback…
2021 · its alternatives →
- 12
I’ve always liked fast online tools for jotting notes or organizing thoughts — but most “productivity” sites either save data to the cloud, require sign-ups, or are full of distractions. So I built an online productivity tools website, a small collection of browser-based tools. It includes an online notepad where you can write and save notes right in your browser, a cornell notes tool available in more than 20 languages, and more coming soon like a pomodoro timer and a simple blank page for focused writing. Everything works entirely in-browser using localStorage — no accounts, no cloud sync,…
2025 · onlinenotep.ad · its alternatives →
- 13
Hi HN! In the last couple of weeks I've been working on Cranki: Cranki = Crosswords + Anki. (It's a stupid name tbh, haha) I like doing crosswords in Spanish (to learn vocab) but none of the apps out there allowed me to use my own list of words that I come across. So I built one instead. It's entirely client-side. No server, no database, no accounts, etc. Your words and stats are stored in local storage. I built this for myself but let me know if you like it!
Apr 2026 · cranki.app · its alternatives →
- 14AW
Hey, I've made a pdf reader with ai assistance, you can quickly ask questions about the text and the images, and it will have context about all of your reading material so you can ask questions freely, try it now, I'm in open beta to find bug and get feedback. upcoming features: - Highlighting - Highlighting with Notes - Bibliography - Automatic Reference file opening - Improved UX and robustness currenlty alot of bugs so please let me know if you found any. feedback appreciated
2025 · pdf-hub.com · its alternatives →
- 15
i take a lot of notes but rarely find time to organize them so the value of most notes in my personal context quietly disappears. Notecast is a local note engine i've been building to help me with that. it runs a three stage LLM pipeline (Classify -> Organize -> Consolidate) that automatically builds and maintain a knowledge graph from the notes. the theme hierarchy emerges by subdivision as notes accumulate. Any change generates a proposal that can be edited and commited by the user. It is early stage and a lot of architectural and domain logic decisions might change but the core is working…
May 2026 · github.com · its alternatives →
- 16AL
Hi HN, I have been studying languages as a hobby for a large portion of my life. Hence, I decided to create a spaced repetion app with the techniques that have helped me the most so far. It's aims to be made simple for the regular user to plug and play. I'd love to hear your feedback!
2025 · koshka.app · its alternatives →
- 17AD
Hi guys, This is my first time building something from scratch so go easy on me. I've always used to-do lists to keep me productive and stave off anxiety (not sure why they work so well for me but they do). I get kinda annoyed at the to-do list apps on the app stores because they move tasks to the bottom of the list when you tick them off. Some people may like that, but it annoys the shit out of me, because I like to feel a sense of progression as I go down through the list over the course of the day. So this was borne out of my frustration really. I also made it browser-based so it's easy…
2022 · anotherdarntodo.com · its alternatives →
- 18BT
It's blowing my mind that I could build an app from scratch in 3 hours and deploy it with the click of a button - without writing a single line of code myself CacheNotes is a browser-based note-taking app that saves your notes, threads, and AI conversations securely in your browser's local storage 100% free. No login required. You get, - simple, minimal note taking app in your browser - no login required - you can connect your claude api key for the ai integration - visualise notes and twitter threads Check it out! Would love some feedback :)
2024 · cachenotes.kanishkdan.com · its alternatives →
- 19
NoteSub▲7I built NoteSub as a simple, offline-first alternative to Notion. No setup, just open, choose the note type... and it just makes things look good. I aimed for it to be like a social media feed, but your own notes. Would appreciate your thoughts on how I could make it more user friendly and useful. It is free to download if you want to try it.
2025 · notesub.com · its alternatives →
- 20
Hi all, I threw together a small prototype I am calling “Notepad.ai”. A new take on UIs for interacting with LLMs. While I enjoy using LLM’s in the chat format I wanted to see what it would be like to do it in a more long form style. It let’s you write in a pretty free form, much like Window’s Notepad, but you can choose to hit ctrl+[ to analyze the text with a preset prompt of your choosing. It has a few other small features. It’s WIP and very experimental. I would appreciate any feedback or thoughts. Video: https://youtu.be/ntdlgFmSxQY Live Demo:…
2024 · github.com · its alternatives →
- 21
I have a short term memory and i have no passion to writing but i want to learn to write something, so i need my note as my second brain, but i need not only note app, i want to freely to write something from my mind, and set some to-do list, so i decide to create one web application that fit to my requirement. And here is my final product that you can try and maybe give me some feedback. This is a free application. Access https://paperly.id for detail
2025 · paperly.id · its alternatives →
- 22
Hello HN! It seems there has been an influx of MIDI projects as of late. I myself also got inspired to work on one last January. I had become frustrated in not being able to read my old sheet music without counting the notes mentally. I thought there had to be an easier way to learn them, I surveyd some apps but none of them felt right to me. So I decided to build one myself and learn some music theory too. I'm quite happy how it turned out, in the end. My sheet-reading has improved substantially although playing and remembering notes is two different things. It works best if you use MIDI…
2024 · midi-note-trainer.teemukoivisto.xyz · its alternatives →
- 23WN
I've built an app that serves simple purpose of quickly collaborating on ideas and creating action items during meetings without barrier of signup and onboarding overload.
2023 · subito.so · its alternatives →
- 24
App summary: Local-first productivity tool that combines note-taking, task tracking and journaling into one simple app. Advantages over Notion: Way simpler UI, all user data is only stored locally on their device - providing significantly faster load time, fully functional offline mode and complete privacy of their data Advantages over Obsidian: Dedicated features for task tracking and journaling - not just note-taking, with cheaper end-to-end encrypted device syncing compared to Obsidian Sync
2024 · impactdiary.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 →