Dev tools · alternatives · 2026
24 alternatives to lunchSTEM
It’s a free, open-source, non-profit knowledge base for STEM (Science, Technology, Engineering and Mathematics). Think of it as an "awesome repo" on steroids. Ideal for going deep into STEM topics, after ChatGPT/Google gives you an overview. - 60+ GB of resources - 10k+ PDFs - 6k+ subtopics Note: this is our first MVP release. Many improvements are planned — check out our roadmap (inside README.md)
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1IM
Hi, I'm a high school teacher from Australia and I've built what I'd like to think is a pretty nifty ChatGPT powered presentation tool for teachers. I'd love it if you could have a look at it and give me some of your feedback. I don't think there's much overlap with the HN crowd and school teachers, but I've been coming here for many years and thought I'd post here and see what you all think. Check it out if you have a minute and I'd be super happy to hear your feedback too. https://www.slidehero.ai/ You can jump in and have a play with the tool all you like ;) Cheers, Eli
2025 · its alternatives →
- 2LO
Hello HN, Over the last 12 months, I have been building https://learnawesome.org This idea came from Danny Hillis' 2012 talk at OSCON, which itself was inspired from Neal Stepehenson's _The Diamond Age : A Young Lady's Illustrated Primer_ The dream is to build a tool that matches the right learning material to the right student at the right time. Wikipedia is great, but it doesn't do a good job of leveraging the rich variety of learning resources that exist on the Web. Same applies to GoodReads - which is focused only on books, whereas these days we actually learn from videos,…
2020 · its alternatives →
- 3IW
Good math problems are hidden inside textbooks and online documents. To keep up with all the sources in the world is hard. For someone who just wants to continuously solve problems, finding and going through all the sources feels like a hassle. I wished for a website that could just dump all the math problems available in the world out there. And if I could filter the problems by topics, that would be beautiful. teachyourselfmath is a side project that was born out of this need. At its core, it is a math PDF extraction engine. The engine has some machine learning going on behind the scenes…
2024 · teachyourselfmath.app · its alternatives →
- 4IM
Hi everyone! I’m the founder of Explanations (https://explanations.app). I’m building a website where students can get college level math & physics help for 1/10th the cost of private tutoring. You’d type a question, and your teacher replies by drawing a Youtube/KhanAcademy-style video; and this happens asynchronously throughout the week. When I was studying at MIT, I often had to wait 40-60 minutes in line just to get 5 minutes of “help” from a TA - when I needed 1-2 hours. I understood that TAs can’t spend all their time helping me. That’s understandable. But what made…
2024 · its alternatives →
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- 6
Everything that would be here is in the README. I hope this gets big, it has tons of potential.
2013 · github.com · its alternatives →
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- 8
Decks▲182I’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!
2024 · decksapp.com · its alternatives →
- 9
STEMpedia▲93Effective learning-by-doing for young innovators
2019 · indiegogo.com · its alternatives →
- 10
Learn math and science with interactive visual explanations
Mar 2026 · openai.com · its alternatives →
- 11
- 12
- 13
CourseHub▲80Spend less time searching, more time researching
2021 · coursehub.app · its alternatives →
- 14
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- 16LO
Hi HN, Over past few months, some of us had been collecting links to learning resources (courses, interactive explorables, books, podcasts, apps, forums, livestreams etc) in a GitHub repository of markdown files. Since we also wanted to have features like advanced search ("Show me podcasts on machine learning which are entertaining and less than 40 minutes long"), we felt the need for an app. Give it a try: https://learnawesome.org You can think of LearnAwesome.org as a GoodReads-equivalent tool generalized to links to ALL media (not just books). Some features you might like: -…
2019 · its alternatives →
- 17HU
Link here: http://beta.whatispolymath.com Despite all the educational material on the web, I found it pretty hard to learn how to code and design. I had trouble finding high-quality content, figuring out what to learn next, and staying motivated without easy ways to track my progress. So, my co-founder and I built Polymath. Our MVP is pretty simple right now: you can find & submit good content, bookmark & track your progress across different resources, and rate/comment on the material. We’re trying to build a really fun online learning community, and we’ve got some more cool features…
2012 · beta.whatispolymath.com · its alternatives →
- 18
Hi HN, we’re building deriveit.org, the website where you can learn any topic, quickly. On our website, you pay to ask any physics, computer science, or math question, and our community competes to give you the best explanation (for a cash reward). Right now, resources with high quality content are a time drain (papers, textbooks, and courses). We think that material is typically written in an unnecessarily hard-to-read way, but that there are tons of people who are passionate about explaining it well to others. We want to give the world access to those people, and remove barriers for them…
2023 · deriveit.org · its alternatives →
- 19
I've been presenting at local meetups about Context Engineering, RAG, Skills, etc.. I even have a vbrownbag coming up on LinkedIn about this topic so I figured I would make a basic example that uses bedrock so I can use it in my talks or vbrownbags. Hopefully it's useful.
Apr 2026 · github.com · its alternatives →
- 20YF
Cut to the chase: https://www.youtube.com/watch?v=4nyzl3pVXp4 I really am a big supporter of quality education being available for everyone, and because of that I've opted to open source my CS education on YouTube. I'm starting with Rails, and I will eventually work around to more core CS topics like circuits -> logic gates -> binary -> assembly -> c -> Data Structures -> Algorithms etc. If you like it subscribe and I'm looking for all the feedback I can get on how to make it better :)
2015 · its alternatives →
- 21
During my (ongoing) engineering degree, I've often looked up formulas and been frustrated at the lack of reliable results. Some formulas (usually the easy ones) get their own blurb on Google results, while others are a few clicks away, or are most easily accessed by looking at random university slides on Google images. It felt like, in this day and age, there should be a site that serves the small but noble purpose of being a source of truth for formulas, while leveraging modern website technology to provide a fast and user-friendly experience. So, I made stemformulas.com (with some…
2023 · stemformulas.com · its alternatives →
- 22
LinkBlink▲26Hey everyone! I’ve built an app that lets you easily create microlearning “bytes” on any topic and have them delivered directly through Telegram or WhatsApp. There’s also a discovery interview feature to tailor content recommendations, plus options to share what you create with others. I’d love to hear what you think! Here are a couple of short videos demonstrating how it works: https://youtu.be/1LwwF1iJynY https://youtu.be/bKXODFoS-9o https://youtu.be/ulDC94CxKFU Any feedback or suggestions would be greatly appreciated. Thank you!
2025 · linkblink.tech · its alternatives →
- 23
CodeHS ▲22Teaching comp sci to beginners w/ no prior background.
2014 · codehs.com · its alternatives →
- 24IM
just a wack systems dude tbh
2018 · h313.info · 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 →