Life & fun · alternatives · 2026
24 alternatives to Stemformulas.com
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…
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Stemformulas.com launched in 2023; newer entries below may have overtaken it.
- 1IW
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 →
- 2
I am excited to announce the launch of my e-book on Graphics/WebGPU programming! This project has consumed much of my spare time, during which I developed various tools to facilitate the publishing process, including a code playground and a static site generator that can reference sample codes. However, I'm feeling burnt out and ready to call it finished, even though it may not feel completely done. Avoiding another abandoned side project has been my primary motivation in reaching this point.
2024 · shi-yan.github.io · its alternatives →
- 3
Share mathematical formulas with your friends.
2014 · chromewebstore.google.com · its alternatives →
- 4
- 5
STEMpedia▲93Effective learning-by-doing for young innovators
2019 · indiegogo.com · its alternatives →
- 6
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)
2025 · github.com · its alternatives →
- 7IG
I’ve always found that online calculators tend to have bad UIs, especially on mobile. Most of the calculator websites I’ve come across use outdated and inconvenient ways of inputting data, or they format the results in confusing ways. I’ve noticed that fraction calculators (especially mixed fractions) are terrible to use, even on desktop. I haven’t built one of those yet, but it’s something I’m planning to tackle soon. This is a project I’ve always wanted to work on, but I’m relatively new to this space. So far, I’ve created a collection of simple calculators focused on math and finance. I’d…
2025 · its alternatives →
- 8
I have had a few conversations in the past year with non-technical folks (traditional finance types, consultants) who asked for a simple explainer on how GPTs work. These people generally have the horsepower to grasp new concepts quickly but don't necessarily have the math background to dig in super deeply and want a stronger framework than "they predict words". I had generally been pointing them to Karpathy, Illustrated Transformer, and other youtube content but I figured something more hands on without the math requirement might be better at explaining questions like "why matrix…
Jun 2026 · understandgpt.xyz · its alternatives →
- 9
Hey everyone, I recently built a free Chrome extension called Formula to LaTeX that lets you convert any formula from an image, screenshot directly into clean LaTeX code. No signup. Just: 1. Paste or drag & drop an image of the formula 2. Get the LaTeX code instantly 3. Copy it with one click It works great for math, physics, and chemistry formulas, super helpful if you're working on problem sets, papers, or presentations and don’t want to retype complex equations. Would love any feedback! I'm still improving it, so feel free to roast it or share ideas
2025 · chromewebstore.google.com · its alternatives →
- 10IB
This site was born out necessity. I needed a break from the internet we know today: clickbait, politics, low quality content, breaking news, AI summaries Such a breadth of information but so little depth Now I spend (too much of) my time here, going deep. Just when I need to scratch that itch. But I keep coming back because it actually makes me a better engineer. Oh, and I made the site. Right. Anyways, I hope you enjoy crawling the blogs as much as I have. Enjoy! And PLZ reply with any feedback. I am here to make this site better. It will always be free.
2025 · codecrawl.co · its alternatives →
- 11
Mileto▲9Solve any science problem in one click w/ AI
2024 · mileto.danigleba.com · its alternatives →
- 12
I wanted to share something I've been working on recently: Statum, a handy web analytics tool. https://github.com/extractumio/statum The journey began when I found myself frequently needing simple web analytics for my projects. I tried Google Analytics, especially GA4, and realized it was quite complex and, at times, not very accurate, especially when I wanted to view stats for the current day or recent hours. Then I tested a few fancy startup solution but ended up with way too expensive plans the expect me to subscribe (I'm not that rich to pay $99/month for every…
2023 · github.com · its alternatives →
- 13IM
Hi HN, I am a solopreneur in the evenings and a software engineer during the day. In the past, I have created lots of calculators for my web projects and freelancing friends. These were pretty basic, but users always welcomed them. I also used currently available builders, but the problem was that they were either slow, broke on mobile devices, had nonsense page view limits, or were expensive. Some even ticked all those boxes. So I have decided to create my own, with a simple interface, and called it Creative Widgets (if it ever takes off, I plan to add more exciting stuff like charts, etc,…
2024 · creativewidgets.io · its alternatives →
- 14
Potion▲8A quick and easy lookup for all your equations and formulae.
2022 · potionapp.vercel.app · its alternatives →
- 15
Search and discover formulas from Homebrew for Mac
2017 · brewformulas.org · its alternatives →
- 16
Hi HN, I've been working on this for a while and it was hard to decide when to stop, either on the way information is presented or when to stop with adding entries. It's not meant as a blog, but rather as a reference that keeps growing. Link: https://thehardparts.dev Currently I've created 4 main section: - Failure Modes: ways project go wrong - Red Flags: early signals that are worth taking seriously - Tech Decisions: common and not so common trade-offs for hard choices - Playbooks - guided approach for situations that repeat I've also focused on creating links between them to…
Apr 2026 · thehardparts.dev · its alternatives →
- 17DC
Hi there! I'm building Diagrammatic, a simple and free online tool with the ambition to become a community for diagrams-as-code enthusiasts. Currently, it supports Mermaid, PlantUML, Dot (Graphviz), Vega-Lite, and Typogram, but I'm looking to add more languages. Please let me know if there's a particular one you use. I'd appreciate any kind of constructive feedback as well. Thanks in advance!
2024 · diagrammatic.com · its alternatives →
- 18
- 19
Find engineering equations, instantly
Nov 2025 · instantequation.com · its alternatives →
- 20
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 →
- 21
- 22LC
We're sick of teaching (and using) SPSS, Stata, and R. Why isn't there a simple site that tells you which test to run, how to format your data, and how to interpret the results? We built LittleStat because we found the current tools unbearably painful. Looking forward to your feedback :) http://littlestat.com p.s. We're also looking for a couple more R/statistics experts to help us add tests and provide more detailed feedback.
2012 · littlestat.com · its alternatives →
- 23IB
Hello all, I built about 2 years ago a coding website for kids, teens and adults: https://codeguppy.com Despite my efforts to promote the website it is still not well know. I post almost daily about it on Twitter at https://twitter.com/codeguppy ... but even there I don't have views. The website is fun... although I still have a ton of things to add. I appreciate if you take a look and suggest improvements and most importantly help me with spreading the news about this website. I really need a boost! Thanks all!
2021 · its alternatives →
- 24
Master STEM with AI-powered formulas in one smart app.
2025 · play.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 →