Life & fun · alternatives · 2026
24 alternatives to Hoodmaps Meets 4chan
I made this as a pair programming exercise with o1-preview. o1 did most of the heavy lifting, through high level prompts, but eventually I needed to diverge from it to get to completion. My initial prompt was: --- I'm making a web app: It's like 4chan, but each thread starts with a gps coordinate. People can only post text and images. I want to build it with flask and sqlalchemy. I want just the backend and data model that supports these threads, anonymous users, and users that can register a permanent username. Write as much of it as you can for me. --- This produced a fully scaffolded…
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Hoodmaps Meets 4chan launched in 2024; newer entries below may have overtaken it.
- 1
Sup HN, So I got tired of bouncing between Flightradar, MarineTraffic, and Twitter every time something kicked off globally, so I wrote a dashboard to aggregate it all locally. It’s called Shadowbroker. I’ll admit I leaned way too hard into the "movie hacker" aesthetic for the UI, but the actual pipeline underneath is real. It pulls commercial/military ADS-B, the AIS WebSocket stream (about 25,000+ ships), N2YO satellite telemetry, and GDELT conflict data into a single MapLibre instance. Getting this to run without melting my browser was the hardest part. I'm running this on a laptop…
Mar 2026 · github.com · its alternatives →
- 2
Hi, I'm Will. I'm 24, autistic, and have OCD tendencies. I'm learning to code and this is my first public project. I’d really appreciate your feedback and encouragement! This project lets me solve some of my OCD problems online. There are a couple of parts of the forums that I visit – Space Battles, Sufficient Velocity, and Questionable Questing – that I want to remove. Specifically, I hate seeing indicators of how much is left in a forum thread, because I keep thinking about how much content is left. It stops me from immersing myself in the story. It stressed me out. Before I learned to…
2024 · github.com · its alternatives →
- 3
Everything that would be here is in the README. I hope this gets big, it has tons of potential.
2013 · github.com · its alternatives →
- 4MW
This was more of a sandbox to play with Raphael and Flot than anything else but I think there are some interesting statistics in there. It'd be awesome to do this over time but I really don't have the spare time required.
2011 · burntbrunch.github.com · its alternatives →
- 5UI
Hey everyone! I am excited to share updates on four of my & my teams' open-source projects that take large-scale search systems to the next level: USearch, UForm, UCall, and StringZilla. These projects are designed to work seamlessly together, end-to-end—covering everything from indexing and AI to storage and networking. And yeah, they're optimized for x86 AVX2/512 and Arm NEON/SVE hardware. USearch [1]: Think of it as Meta FAISS on steroids. It's now quicker, supports clustering of any granularity, and offers multi-index lookups. Plus, it's got more native bindings than probably…
2023 · usearch-images.com · its alternatives →
- 6HA
URL: http://hipchan.com/ The story: after seeing this on HN http://news.ycombinator.net/item?id=1940089 and seeing a comment about 4chan, I decided that I could build something that embraces the 4chan idea. Even though the story today is 'social' I really think that anonymity will continue to have a place in future communities. It was supposed to be a weekend hack, and it was! 95% of the features were worked out in the weekend following, but somehow testing lasted till today... Primary feature: The ability to have * boards. For example: http://hipchan.com/#hn The Tech:…
2010 · hipchan.com · its alternatives →
- 7AS
Hello Hacker News! In the past few weeks I've been working on a side project that allows you to post anonymously a short message and a photo that is tied to your location. Other people can see posts around them in a radius of 1 kilometer. Posts are ephemeral and disappear after one day. That's all. It started as an exercise to try to write a geohash index and to try nodejs and Redis. I'm not sure if/how it could be useful. Maybe it could be used as a quick way of sharing something with someone next to you, or to leave a reminder for someone at a specific location. Or it could be abused…
2015 · its alternatives →
- 8
My friend and I have been collaborating on this lighthearted introduction to doing geospatial computation in rust. Don't know Rust? Don't know geospatial? I'd be interested to know what you think.
2022 · book.georust.org · its alternatives →
- 9
Sup HN, So a couple of months ago I posted my OSINT app ShadowBroker here and got WAY more attention than I expected. Some of the feedback was brutal, but honestly, a lot of it was right, and it made the project a lot better. And sure, I had a blast tracking billionaire jets and yachts or discovering GPS jamming in Ukraine was a thrill, and so was watching CCTV feeds from London, along with ships, satellites, conflict zones, etc., but eventually it dawned on me…where does my OSINT dashboard actually go from there? What good is all of the telemetry if people cannot communicate with each other…
May 2026 · github.com · its alternatives →
- 10IM
Try it at: ssh krnl.duetbrowser.com No sign up, totally free - no download. Let me know what you think. Prior art exists (brow.sh) but I wasn't satisfied with their graphical take. I wanted the raw, old skool terminal days of the early internet - BBS, and old green phosphor library comptuers - but running the modern web, with all the bells and jingle jangle whistles (JavaScript, etc). No funding, no VC, just 100% raw terminal fun. Not sure how long the demo will last, but try it out.
Jul 2026 · its alternatives →
- 11CP
Hi hackers, long time reader, first time "real" submitter. This is by no means a revolutionary idea, or even execution, but rather something I've always wanted to do, just to see if I could write a good implementation of it. So without further adieu: http://ca.pitali.st/ Yes, it's just an URL shortener. Please check out the API and if there anything you like about it, please share, so I can take this feedback with me to my future projects. If there's something you REALLY hate, that's feedback too. Don't be afraid to hurt my feelings; this was put together in less than 4 hours to see if I…
2011 · ca.pitali.st · its alternatives →
- 12MP
My first "real" web app! I appreciate any comments/suggestions.<p>Also I am available for hire. Contact me at www.sambolgert.com
2012 · se.cret.ly · its alternatives →
- 13
wsgrok▲7I built it for myself because ngrok didn't let me add one more domain unless I paid $12 more. I probably should've looked for alternatives before building my own, but my grudge got in the way . Once I started, I wanted to make it better than the other options. Silly, I know. No one probably cares. I plan to open source it sometime next year because I’ve got other projects to finish first. It's free until I deplete my cloud credits, then it will switch to a tier-based model with a free option.
Jan 2026 · wsgrok.com · its alternatives →
- 14
I built over 3-4 weeks to solve my own pain point, picking up rust along the way. It has a browser version that works online/offline and cross platform desktop as well. It was a pretty intense sprint. About TreeSnap, well it simplifies this preparation of sharing code with Chat LLMs. In my use case, making o3 via ChatGPT a lot more cost-effective to use for these tasks compared to Cursor: How it works: Select files/folders → generates a single text bundle + ASCII tree Instantly shows per-file and total token counts (list & treemap views) Quickly trim unnecessary files or folders to…
2025 · treesnap.app · its alternatives →
- 15KY
Hey HN! I wanted to practice "vibe coding" and see how far and fast I can go by only prompting, without actual coding. I decided to make a simple CLI app that scrapes web docs into a single md file (I was annoyed that LLM keeps writing Tailwind 3 code for a Tailwind 4 project). In just a couple of hours, the CLI app was ready! Then iterated on arguments for another couple of hours. Result: https://github.com/vladstudio/web2llm Then I decided to go further and "productize" the CLI by making a web app for it. Another half-day, and the web app is ready!…
2025 · web2llm.dev · its alternatives →
- 161R
I wanted to find a product idea to build. "Build things people want," right? So I thought, why not literally find people saying what they want? I wrote a script to collect thousands of Reddit posts where people are looking for a solution or complaining about a problem. Then I used GPT to filter out the noise and score each one based on how viable the idea seemed. Threw together a simple search interface so anyone can explore them. I was planning to build a more advanced paid version of this, but figured I'd share the raw version first to see if it's actually useful to anyone.
Nov 2025 · search.reddit-business-ideas.workers.dev · its alternatives →
- 17
Hey HN! I made a completely open sourced alternative to Weights and Biases with (insert cringe) blazingly fast performance (yes we use rust and clickhouse) Weights and Biases is super unperformant, their logger blocks user code... logging should not be blocking, yet they got away with it. We do the right thing by being non blocking. Would love any thoughts / feedbacks / roasts etc
2025 · github.com · its alternatives →
- 18CA
My sister asked me if I can set up a site similar to jack.ventures for her a month ago. She said it was open source (https://github.com/Jack000/Expose) and should be easy and I just need to run a script (rolls eyes). I did that and two weeks later her friends saw it and want me to run the same script for them. So I decided to take some weekends to build something similar using nodejs/redis/mysql, put up a user registration page, user profile page and add some editing features. So now everyone can sign up without me having to run any 'script'. Just push the first…
2017 · its alternatives →
- 19MF
Please have a look at www.socialeaks.com and tell me what you think. This is my first adventure in coding (my background is not CS). I started learning rails about a month ago via railstutorial.org. When I finished that, I felt the best way to continue learning would be to just build an app from scratch. I came up with this concept while observing how crazy the world had gone over WikiLeaks. I thought this was a funny idea. I also thought it would be fun to build! So, here I am. I built this in rails 3 and it is currently living on Heroku. It took me about two weeks to code, doing just about…
2011 · its alternatives →
- 20WV
Hey everyone, my friend and I created a GitHub Wrapped video for developers to showcase their activity on the platform in a more fun way. The implementation is open-source (https://github.com/rendleyhq/github-wrapped-2024) if you're interested in how it was built. To get a bit geeky, we used masks, keyframe animations, luma key shaders to remove the background from the confetti video, and some other techniques. Also, everything is rendered directly in the browser!! I'm curious to hear your thoughts on the rendering performance, especially if you're running this on your…
2024 · rendley.com · its alternatives →
- 21IB
After fine-tuning GPT for a personal project, I realized how tedious it is to write plain text in a massive JSON file. That's why I built this app for my own use, and I want to see if others could benefit from a tool like this as well ;)
2024 · finetuna-ui.com · its alternatives →
- 22
Hi all! We are a tiny team of two that enjoyed using del.icio.us back in the day. It was a simple and efficient tool for two things: saving urls for later, and browsing the web thanks to the tags and some other basic features. So we wondered about rebuilding it. Its been quite a ride, but we finally have a streamlined version of what we are looking for. This is www.urligram.com: a prototype for a new social bookmarking platform. We have been using it for some time, and while there is a lot of work to be done yet, we think it is stable enough to be useful. Currently you will be able to save…
2023 · urligram.com · its alternatives →
- 23OA
A friend and I are launching an alpha first thing in 2011. We're trying to gain some momentum and whatnot, so we're opening early registration as of tonight. We're planning to develop a Bayesian network to derive suggestions. If you're interested in seeing our progress, check it out. Edit: Any and all suggestions, criticism, advice, etc is highly appreciated!
2010 · osmoar.com · its alternatives →
- 24SM
Hi HN, I built a tool to create minimalistic vector maps online, and generate a URL with the entire dataset as query params. The URLs generated are off-putting, but in turn you get private shareable maps. The code for the website is also open source and lives at https://github.com/ironmaps/mapinurl/ . Please let me know if you have any usecases I could solve for.
2023 · ironmaps.github.io · 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 →