Alternatives
Products that do what Idea roulette (brainstorming site) does
This is a website I've been working on in this holiday season. It tries to help creators in choosing the right idea to implement, and help you get reviews from your peers or from your friends. To work you need to log in with a google account, describe your idea, and review the ideas of other (chosen randomly). You then will get reviews of your idea from others. It's very basic as this is just a MVP of what it could be and I would really appreciate any suggestions/criticism you could give. You can do it here or directly reviewing the idea of "Idea Roulette" I've created on Idea Roulette…
- 1AS
Hi HN! I made a really quick web app to help people validate their ideas. The app is a simple landing page builder, but every page includes a really simple Yes/No "Are You Interested?" poll. Every vote is recorded and tracked, and if they click yes they are brought to a page where they can submit an email. This makes validating ideas super easy because you can post your link to different communities and get statistically significant results as well as build an email list. Given an hour, you could easily create 50 different landing pages and be able to validate your ideas in bulk. The…
2020
- 2HF
I wanted to see how difficult it would be to build a web app using a sub-$300 android smartphone. Decided to build a fun predictions website where you could bet virtual (not real) money on predictions made by others, and also make predictions of your own. Building it turned out to be considerably easier and more fun than I anticipated. Primary tools used were: # QuickEdit as the mobile code editor (Note: the free version of the QuickEdit app is riddled with ads, it shows an advert each time you close a tab, but it unfortunately had the best UI of the 3 or so Android code editors I tested.…
2022 · kudotap.com
- 3IS
I created a little meteor application last night for idea sunday for some real time thought sharing http://thoughts.meteor.com/
2014
- 4PT
I made this for people like myself who keep a list of ideas for apps / startups. I also made it for people who are curious to see what projects others have "in their drawer"... and who may want to have a say in which idea should see the light of day. https://ideas.dynamate.io/ The site allows creators to anonymously showcase their idea: Title. Description text. Maybe some mockups... I've tried to make it so that it's quick and easy to just dump an idea in there that's been sitting on some list of yours for months - and hopefully get some feedback on it. If someone else on…
2022 · ideas.dynamate.io
- 5UI
http://www.upboat.us Demo: http://www.upboat.us/idea/upboat Screenshot of logged-in view: http://i.imgur.com/vUZXfZc.png Upboat is an idea validation platform, somewhere inbetween Kickstarter and LaunchRock. If the idea you pitch receives over 200* "upboat"s (consented would-be users) within one week, you get the whole emailing list of all those who upboat'd it. If not, you get nothing. This is helpful for those who have ideas for side-projects, but lack the strong-enough incentive to get to work and just hack something together. Should you put up…
2013
- 6SB
With my friends we wanted to have a nice friendly competition (no money involved) about the football worldcup by predicting the results. I though this might interest other groups of friends so I coded a website just for that in 3 days. Nothing ground breaking but I like the suscription system "Doodle" style with just links, no personal infos... Tell me what you think !
2014 · nospronos.com
- 7FS
I started a newsletter sending out daily startup ideas. After a year, I transitioned to weekly ideas with more in-depth details. I recently posted all of them to the website and made them searchable. Check it out and let me know what you think. By providing more than just an idea, my hope is to help someone start their next business. https://www.startupsfromthebottom.com/
2020
- 8GC
I just launched a new project aimed at helping people to do something fun and creative every day by giving them daily challenges. The goal is to promote habitual creativity by reducing the barrier to content creation and reminding users to keep at it. Everyone can see everyone else's creations and give them some encouragement with a like. When designing Get Creative, I wanted something with a mobile sensibility: badged notifications reminding users to return, a very simple interface, even a predefined viewing size. But I didn't want to dive full in to iOS or Android where testing would be…
2012
- 9SL
So a while ago I was thinking it would be neat to build a site that had the most absolute utility. The idea I came up with was a site to store those little protips that are super useful, if you know them ahead of time. I hired a guy to work on it with me, and ClueDB was born: http://cluedb.com/ Please give it a whirl (it uses Twitter auth as login but doesn't tweet anything) and tell me what you think! (Various trivia: My first try at a project coded by someone else and "product managed" by me. Runs on Flask + MongoDB. Also, this is totally unrelated to my startup.)
2011
- 10IA
I was working on validating some of my own project ideas. While trying to find how to validate my idea, I realized the process itself could be turned into a tool. A few late nights later, I had something that takes any startup idea, fetches discussions, summarizes sentiment, and gives a quick “validation score.” It’s very rough, but it works, and it’s already making me rethink a few of my own ideas. It's still a work in progress. I don't actually know what I'm doing, but I know it's worth it. Honest feedback welcomed! Live demo here: https://validationly.com/
2025 · validationly.com
- 11
I built a tool (https://1mil.app/hn) to help me test my intuition about various weird business ideas that were on my mind. Initially, I wanted to create a database with 1 million business ideas (hence the name - "1 million opportunities"). But turned out to be a dumb idea already. So instead I built this tool that returns only 10 ideas. It's all based on your input, market + your background. The first release scored on demand only and it gave false confidence. So I rebuilt the the scoring around "winnability": can a solo founder with a specific background "win" against what…
7d ago · 1mil.app
- 12IT
I created http://devtest.net as a weekend project, and I'm pretty proud of it from a technical and UI standpoint. The problem is, I've built this by myself in a bit of a vacuum, to "scratch my own itch", and I don't know if this is useful to anyone other than me. I'm also not so hot on the business side and don't really know what I'm doing. Basically, I'm looking for some advice, now that I've actually launched, what now? One thing that this has shown me is that I'm capable of putting together a pretty decent web application on my own in my spare time. Should I stick with this idea, or…
2012
- 13MM
Inspired by the following post by photon_off... http://news.ycombinator.com/item?id=1683309 I made karmurl last night. It's a simple app where you submit a URL for feedback, then for every piece of feedback you give to someone else's, you get to read one piece of feedback for yours. http://karmurl.com
2011
- 14CCheergram▲15
http://cheergram.com Hey there everyone. I have been reading HN a bit here sans there but haven't ever submitted/commented before. (I am a stay at home mom) Anyway I had this idea a while back and had my husband help me build it. I tried to do most of the designs, though some are stock vectors. Anyway I'd love your feedback on anything that will help this business grow. Thanks so much.
2012
- 15WA
Here is something I made for fun, after getting annoyed by hearing numerous ideas proposed by various people. http://www.kidura.com/front_pages/misc_fun/
2013
- 16IM
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
- 17AS
Got rejected from YC a few times, so I built a site to collect lessons, reflections, and what people would do differently next time. Thought it could be helpful since most founders apply more than once anyway :) Hope it's helpful: https://ycrejection.com/
2025 · ycrejection.com
- 18MH
Hi Hn, A buddy and I worked on this prototype to see if we could design a system that helps people think creatively. I'd love your feedback, tips and pointers - and yes, I know it's a bit ugly (much css work to be done). Check it out at beta.monsterlumen.com and let us know what you think!
2013
- 19MW
I created https://foundermeals.com as a weekend project, and as part of an internal competition we do at http://www.freshform.com I love the concept, and I'll be ecstatic if the project is funded and can move forward. But I'm curious if I'm focusing too much on my own insane hunt to find the simplest way to cook, or if that appeals to others. Most people I've told about this respond with, "You're kinda analytical, huh?" or "You think people would pay for that?" or even "...." The thing is, I'm not trying to sell recipes, I'm trying to sell convenience, and I'm not sure I've communicated that…
2012
- 20YR
Had this idea recently and just had to get it out of my head and into a (super quick and dirty) prototype. It's like Letterboxd but for anything, and with a simpler rating system you don't have to sweat about.
2023 · yynn.app
- 21FS
Hello HN, I created a simple website which lets children (of all ages) sketch something and then animate it using AI. It's a small hobby project because I wanted to see what all the hype is about. No account required (but because the sketch app allows image uploads and we all know we can't have nice things on the Internet, I will be moderating the submissions before showing them on the front page). Stack: Excalidraw, Django, Postgres, Redis for caching, ComfyUI for the image to video workflow (Wan 2.2 14B I2V). Let me know what you think. Merry Christmas!
Dec 2025 · funsketch.kigun.org
- 22IB
I built a website for games that catch my eye or have something interesting going on. I made it for fun but then updating became a habit. Maybe you'll find your next "must-play" game here? GitHub repo: https://github.com/RaycatWhoDat/games-list
Nov 2025 · alistof.games
- 23IB
I haven't seen anything like this so I decided to build it in a weekend. How it works: You see a bunch of things pulled from Wikipedia displayed on cards. You ask yes or no questions to figure out which card is the secret article. The AI model has access to the image and wiki text and it's own knowledge to answer your question. Happy to have my credits burned for the day but I'll probably have to make this paid at some point so enjoy. I found it's not easy to get cheap+fast+good responses but the tech is getting there. Most of the prompts are running through Groq infra or hitting a cache…
Apr 2026 · sleuththetruth.com
- 24IM
Hi HN! Writing has been a big part of my life for the last few years. It's helped me make sense of the world around me through journaling, and my blog and technical books have made wonders for my career as an engineer. Something I've always been missing is an online community where I can practice my skills and learn from other aspiring writers. I built Tavern, hoping to solve my own problem. Its main concept is that every Monday everyone in the app gets asked the same writing prompt and you have seven days to submit your answer. You can look at what others have posted, but only after you've…
2023 · writerstavern.io
Ranked by how close each launch is in meaning, then by votes. Refine with a description →