ShowHN Today
ShowHN

Show HN Today: Top Developer Projects Showcase for 2024-11-16

SagaSu777
#HackNews#ShowHN#ShowHN Today#Developer Projects#Tech Innovation

Explore the hottest developer projects on Show HN for 2024-11-16. Dive into innovative tech, AI applications, and exciting new inventions!

Summary of Today’s Content

Today’s highlights include a range of innovative projects showcased on Hacker News. Notable mentions are the Chip8 emulator built on EVM, a powerful API for generating AI podcasts, and a browser extension for auto-organizing tabs by domain. Developers introduced tools like a flashcard generator for exams and a lightweight DI container for Go. Other interesting entries include a platform for rating video game difficulty, a VR sandbox in Gorilla Tag, and an AI-based baby face preview generator. The diversity of projects reflects a vibrant developer community sharing practical and creative solutions.

1. Show HN: I built chip8 emulator on evm

URL: https://github.com/rkdud007/solchip8

Author: change_00

Description:

Popularity: 1 points | 0 comments

Show HN: I built chip8 emulator on evm - Project Screenshot


2. Show HN: Top Hacker News stories every day over the years

URL: https://top-hn-stories.adhikasp.my.id/

Author: adhikasp

Description:

Popularity: 2 points | 0 comments

Show HN: Top Hacker News stories every day over the years - Project Screenshot


3. Show HN: Tab Sync Pro – Automatically organize browser tabs by domain

URL: https://chromewebstore.google.com/detail/tabsync-pro/mafafihejjcollcbibihdfbibbedfbhl

Author: coopr-ai

Description: Hi HN! I built Tab Sync Pro to solve the common problem of tab overload. The extension automatically groups and organizes tabs by domain in real-time.

Key features:

Popularity: 1 points | 0 comments

Show HN: Tab Sync Pro – Automatically organize browser tabs by domain - Project Screenshot


4. Show HN: I built an API that makes AI Podcasts

URL: https://github.com/nitrictech/pycasts

Author: tholm

Description: Looking at NotebookLM and NotebookLLama I wanted something that I could self-host and orchestrate easily with other cloud services, so I built this reference example as a starting point. Its still very basic (with some hacks around splitting text content for longer form audio) but still keen to share it and get some feedback.

Popularity: 1 points | 0 comments

Show HN: I built an API that makes AI Podcasts - Project Screenshot


5. Show HN: I built an app for anyone to design their own kitchen

URL: https://planmykitchen.vercel.app/

Author: archis3

Description:

Popularity: 4 points | 3 comments

Show HN: I built an app for anyone to design their own kitchen - Project Screenshot


6. Show HN: Bravoboard Wish Composer

URL: https://twitter.com/TeamBravoboard/status/1857913949393428572

Author: tumidpandora

Description:

Popularity: 1 points | 0 comments

Show HN: Bravoboard Wish Composer - Project Screenshot


URL: https://www.getcrystalball.com/

Author: jmcbca04

Description: Hey everyone!

I started learning to code last summer, and wanted to build my own software products. This is my first attempt.

Wrote the first line of code for this on 9/7, and had 4 features built and ready for customers to buy on 11/7.

It uses data from Google Trends.

- Dashboard for currently trending topics

Popularity: 1 points | 0 comments

Show HN: Built my first software product to research and predict trends - Project Screenshot


8. Show HN: A NextJS boilerplate to automate all the boring stuff

URL: https://www.shipseo.lol

Author: arthuryuzbashew

Description: Hey HN,

I’m a software engineer and I make websites often. 1 website every 4 days.

I realized I was doing the same thing over and over: set up DNS records, connect DB, listen to Stripe webhooks and the main thing is SEO…

So I bought ShipFast from Marc and upgraded it with SEO info for 2 reasons: 1. Save time and focus on what matters: building a business 2. Avoid headaches.

I hope this boilerplate will be as helpful to you as it is for me. Reselling it updated for 4x cheaper so everyone can benefit from it lol.

Arthur

Popularity: 1 points | 1 comments

Show HN: A NextJS boilerplate to automate all the boring stuff - Project Screenshot


9. Show HN: Sentence Autocompletion AI-Powered UI

URL: #

Author: grigio

Description: Reimagined as an AI-powered writing assistant for everyday users. Think autocomplete, but for crafting compelling prose instead of code.

OpenAI compatible API supported

https://github.com/grigio/techonsapevole-intelligence

Popularity: 1 points | 0 comments


10. Show HN: How Difficult Is It? A website for rating game difficulty

URL: https://howdifficultisit.com

Author: FrickinSilly

Description: I created a website/app for rating the difficulty of video games. Difficulty is subjective and I was tired of solving the riddle of the sphinx every time I wanted to know if a game was difficult or not. Individual comments on reddit, twitter, or a steam page are not easy to gauge. You don’t know the prior gaming experience of any individual player. I’m hoping that with enough volume, aggregate ratings will give a much better picture of a game’s difficulty.

Popularity: 1 points | 0 comments

Show HN: How Difficult Is It? A website for rating game difficulty - Project Screenshot


11. Show HN: ColiVara – State of the Art RAG API with Vision Models

URL: https://github.com/tjmlabs/ColiVara

Author: jonathan-adly

Description: we have been working on ColiVara and wanted to show it to the community. ColiVara is an api-first implementation of the ColPali paper using ColQwen2 as the LLM model. It works exactly like RAG from the end-user standpoint - but using vision models instead of chunking and text-processing for documents.

Why should anyone working with RAG care?

ColPali makes information retrieval from visual document types - like PDFs - better. Colivara is a suite of services that allows you to store, search, and retrieve documents based on their visual embedding built on top of ColPali.

(We are not affiliated with the ColPali team in anyway, although we are big fans of their work!)

Information retrieval from PDFs is hard because they contain various components: Text, images, tables, different headings, captions, complex layouts, etc.

For this, parsing PDFs currently requires multiple complex steps:

1. OCR

2. Layout recognition

3. Figure captioning

4. Chunking

5. Embedding

Not only are these steps complex and time-consuming, but they are also prone to error.

This is where ColPali comes into play. But what is ColPali?

ColPali combines: • Col -> the contextualized late interaction mechanism introduced in ColBERT • Pali -> with a Vision Language Model (VLM), in this case, PaliGemma

(note - both us and the ColPali team moved from PaliGemma to use Qwen models)

And how does it work?

During indexing, the complex PDF parsing steps are replaced by using “screenshots” of the PDF pages directly. These screenshots are then embedded with the VLM. At inference time, the query is embedded and matched with a late interaction mechanism to retrieve the most similar document pages.

Ok - so what exactly ColiVara does?

ColiVara is an API (with a Python SDK) that makes this whole process easy and viable for production workloads. With 1-line of code - you get a SOTA retrieval in your RAG system. We optimized how the embeddings are stored (using pgVector and halfvecs) as well as re-implemented the scoring to happen in Postgres, similar to and building on pgVector work with Cosine Similarity. All what the user have to do is:

1. Upsert a document to ColiVara to index it

2. At query time - perform a search and get the top-k pages

We support advanced filtering based on arbitrary document and collection metadata as well. So, we support re-ranking use cases and hybrid search.

State of the art?

We started this whole journey when we tried to do RAG over clinical trials and medical literature. We simply had too many failures and up to 30% of the paper was lost or malformed. This is just not our experience, in the ColPali paper - on average ColPali outperformed Unstructured + BM25 + captioning by 15+ points. ColiVara with its optimizations is is 20+ points.

We used NCDG@5 - which is similar to Recall but more demanding, as it measure not just if the right results are returned, but if they returned in the correct order.

You can see our full eval results here: https://github.com/tjmlabs/ColiVara-eval

If this sounds like something you could use, check it out on GitHub: https://github.com/tjmlabs/ColiVara

It’s fair-source with an FSL license (similar to Sentry), and we’d love to hear how you’d use it or any feedback you might have.

Additionally - our eval repo is public and we continuously run against major releases. You are welcome to run the evals independently: https://github.com/tjmlabs/ColiVara-eval

Popularity: 10 points | 0 comments

Show HN: ColiVara – State of the Art RAG API with Vision Models - Project Screenshot


12. Show HN: DomainSnap – Free and Fast Bulk Domain Availability Checker (1200 TLDs)

URL: https://domainsnap.net

Author: blacktechnology

Description:

Popularity: 2 points | 1 comments

Show HN: DomainSnap – Free and Fast Bulk Domain Availability Checker (1200 TLDs) - Project Screenshot


13. Show HN: Speed up model inference on CPU with hand crafted layer implementations

URL: https://github.com/sushrut141/kaoken

Author: wanderinglight

Description: Kaoken explores the performance of handcrafted layer implementation of common PyTorch layers.

The results show that for smaller models, using these “baked” layers enables real time inference without the need for a GPU. ore details in the README.

Popularity: 2 points | 2 comments

Show HN: Speed up model inference on CPU with hand crafted layer implementations - Project Screenshot


14. Show HN: A Wear OS app to browse and send HTTP GET requests

URL: https://github.com/cmader/HttpClient-WearOS

Author: TrevorOkmonic

Description: I made this simple app that works with a hierarchically organized list of URLs. On the watch you can browse through this list and dereference the URL (HTTP GET). The thing is useful for home-automation use cases. The requests would go to a local server (running, e.g., node red or home assistant) that does the heavy lifting and talks to various smart devices.

Popularity: 1 points | 0 comments

Show HN: A Wear OS app to browse and send HTTP GET requests - Project Screenshot


15. Show HN: Usps.com Is Down

URL: https://www.usps.com/

Author: MrFots

Description: Wanted to schedule an appointment to renew my passport, just like so many else might.

Popularity: 1 points | 1 comments

Show HN: Usps.com Is Down - Project Screenshot


16. Show HN: Create and Run a Team of Web Research AI Agents with a Prompt

URL: https://app.soaringtitan.com/

Author: ActVen

Description: Hi everyone. We have been building a system that lets users create a team of AI web research agents from a simple chat interface. We just launched a free beta of the service and would love some feedback. It’s capable of web research right now. Think topics, not bulk data mining. The backend uses frontier models from OpenAI and Anthropic. Jobs take about 10 minutes to run. Let me know what you think. Thanks! [email protected] more info at https://soaringtitan.com/labs/team-of-ai-agents

Popularity: 1 points | 1 comments

Show HN: Create and Run a Team of Web Research AI Agents with a Prompt - Project Screenshot


17. Show HN: I made a tool that helps you pass any exam

URL: #

Author: madebyshaurya

Description: Hey, Shaurya here! I am a 13 year old developer who loves to make websites and app. Recently I created Ace It. A tool from which you can create flashcards, quizzes, summaries and youtube video suggestions. You can use all features for free. Here is the link to try it out: https://aceit.study

Feel free to comment your thoughts/suggestions about the product.

Thanks, Shaurya

Popularity: 2 points | 6 comments


18. Show HN: PVBenchmark – UserBenchmark for PV Systems

URL: https://pvbenchmark.de/

Author: muc-martin

Description: Hi HN,

I’d like to share a side project I’ve been working on: https://pvbenchmark.de/.

In Germany, small plug-and-play photovoltaic systems, often referred to as “balcony PV systems,” have become increasingly popular. These systems are designed for easy installation on balconies or rooftops, allowing homeowners and renters to feed a small amount of renewable energy back into the grid while reducing their electricity bills. However, one challenge for many users is assessing whether their system is performing well or if there’s room for optimization.

Inspired by online communities where users share performance data, I built PVBenchmark, a platform to help small PV system owners benchmark their energy production.

Here’s how it works:

Upload: Share a screenshot from your inverter app and input basic system data (ZIP code, peak power, orientation, tilt). Analysis: The tool extracts the data, matches it with local weather and site conditions, and calculates the theoretical potential for your setup. Comparison: See how your daily, monthly, or yearly energy generation stacks up against similar systems from other users.

Right now, the site is in German (sorry!), as it’s primarily targeting German users who own these small systems. If there’s interest, I’d be happy to work on making it more accessible to a broader audience.

I’d love for the HN community to check it out and share any feedback. It’s an early version, and I’m eager to improve it.

Popularity: 1 points | 0 comments

Show HN: PVBenchmark – UserBenchmark for PV Systems - Project Screenshot


19. Show HN: I built a(nother) house optimized for LAN parties

URL: https://lanparty.house/

Author: kentonv

Description: I wasn’t quite sure if this qualified as “Show HN” given you can’t really download it and try it out. However, dang said[0]:

> If it’s hardware or something that’s not so easy to try out over the internet, find a different way to show how it actually works—a video, for example, or a detailed post with photos.

Hopefully I did that?

Additionally, I’ve put code and a detailed guide for the netboot computer management setup on GitHub:

https://github.com/kentonv/lanparty

Anyway, if this shouldn’t have been Show HN, I apologize!

[0] https://news.ycombinator.com/item?id=22336638

Popularity: 744 points | 265 comments

Show HN: I built a(nother) house optimized for LAN parties - Project Screenshot


URL: https://pornwitch.com/

Author: pornwitch

Description: Hey HN,

We’ve launched a new porn search site built with Next.js and Elasticsearch.

The main problem we’re tackling is how most adult sites struggle to handle complex searches with multiple categories. On PornWitch, you can mix and match as many categories as you want, and the results will always match all your selected filters.

Right now, we’re pulling results from Pornhub, XHamster, XVideos, and Eporner, with plans to add more sources soon.

Check it out and let us know what you think! We’re open to any feedback, feature requests, or ideas. If it fits with what we’re aiming for, there’s a good chance it’ll be added.

Popularity: 3 points | 5 comments

Show HN: Pornwitch.com – Category-Based Porn Search - Project Screenshot


21. Show HN Memory for AI Agents

URL: https://app.swastikai.com/

Author: chirotpal

Description:

Popularity: 2 points | 6 comments

Show HN Memory for AI Agents - Project Screenshot


22. Show HN: Monkeblocks.org – A VR sandbox experience within Gorilla Tag

URL: https://monkeblocks.org/en

Author: techFFF

Description: onke Blocks is a creative sandbox mode within Gorilla Tag, designed for VR enthusiasts who love building and exploring. Players can snap together blocks, recycle resources, and save builds for future sessions. It’s a blend of creativity and interactivity, allowing some players to construct while others explore in a miniaturized perspective.

Check out the latest updates, community guides, and download links for all major platforms at [monkeblocks.org](https://monkeblocks.org). Let us know your thoughts or share your builds!

Looking forward to your feedback!

Popularity: 1 points | 0 comments

Show HN: Monkeblocks.org – A VR sandbox experience within Gorilla Tag - Project Screenshot


23. Show HN: Ore – Lightweight, Generic and Simple DI Container for Go

URL: https://github.com/firasdarwish/ore

Author: firasdarwish

Description:

Popularity: 2 points | 0 comments

Show HN: Ore – Lightweight, Generic and Simple DI Container for Go - Project Screenshot


24. Show HN: TemPad Dev – Inspect panel on Figma, for everyone

URL: https://github.com/ecomfe/tempad-dev

Author: Justineo

Description: TemPad Dev offers a Chrome extension aimed at creating a simple and user-friendly Inspect panel on Figma for all users.

Popularity: 1 points | 0 comments

Show HN: TemPad Dev – Inspect panel on Figma, for everyone - Project Screenshot


25. Show HN: Monitor RescueTimes activities form your macOS menu bar

URL: https://github.com/stared/xbar-rescuetime-activities

Author: stared

Description: I would like to share a widget I recently developed! I created it for myself to check how I spend my time at a glance. It is all too easy to fall into a rabbit hole and lose track of time—or, on the flip side, to stay motivated when I see I’m in the flow and focused.

As someone with ADHD, I’m especially prone to distractions but also thrive on instant feedback. Having RescueTime statistics readily accessible has been a game-changer for me.

If you’d like to try it out, it’s open source and free to use. I’d love to hear your thoughts or feedback!

Popularity: 1 points | 0 comments

Show HN: Monitor RescueTimes activities form your macOS menu bar - Project Screenshot


26. Show HN: Manage your team’s tasks directly within Telegram

URL: https://elcoan.github.io/kaban/

Author: amadelio

Description: Hi guys. Let me introduce “Kaban” (yeah, like kanban) - it will turn your Telegram into project management tools: create tasks, set deadlines, and track progress - all without leaving Telegram.

Popularity: 4 points | 1 comments

Show HN: Manage your team's tasks directly within Telegram - Project Screenshot


27. Show HN: Android Dev Quest – A puzzle game solvable only using developer tools

URL: https://www.androiddev.quest/

Author: richzad

Description: Hi HN,

Android has a lot of developer tools available that can kind of give you super powers.

Dev Quest is a unique puzzle game built exclusively for Android developers — it can only be solved by the creative use of different developer tools.

It’s an idea that I’ve iterated on for over 5 years, and finally launched today.

It’s very challenging even for seasoned devs, so there’s a progressive tips & tips tricks guide included to help if you ever get stuck.

I hope people come out the other side feeling like they have super powers as an Android developer, and had fun in the process!

Popularity: 76 points | 9 comments

Show HN: Android Dev Quest – A puzzle game solvable only using developer tools - Project Screenshot


28. Show HN: Chrome extension for custom text color in Notion

URL: https://chromewebstore.google.com/detail/vivid-notion-use-custom-c/gblnoflaanlhjhjkkdgfipjoidmnglkp

Author: homeniuk

Description:

Popularity: 1 points | 1 comments

Show HN: Chrome extension for custom text color in Notion - Project Screenshot


29. Show HN: A game where you identify countries based on their electric grid mix

URL: https://jmelville.science/griddle/

Author: phenol

Description: I’m a climate scientist, and I built this game using a dataset from Ember Energy (https://ember-energy.org/data/api/). The UI is ugly and the code is uglier, but the game is weirdly hypnotic regardless. Please let me know what you think!

Popularity: 1 points | 1 comments

Show HN: A game where you identify countries based on their electric grid mix - Project Screenshot


30. Show HN: Ode to Joy Bubble Game

URL: https://joy.franzai.com/

Author: franze

Description:

Popularity: 1 points | 0 comments

Show HN: Ode to Joy Bubble Game - Project Screenshot


31. Show HN: BabyGenerator – AI-Powered Baby Face Preview

URL: https://babygenerator.online

Author: harperhuang

Description: Hi everyone! I’ve developed BabyGenerator (https://babygenerator.online/), a web tool that uses AI technology to help expectant parents visualize what their future baby might look like.

The idea came from my personal experience when my wife and I were expecting our first child. We were always wondering who our baby would look like, so I decided to create a tool to help expectant parents visualize this.

How it works:

  1. Upload photos of both parents
  2. Analyze facial features
  3. Generate multiple possible combinations using AI
  4. Provide previews of the child at different ages

    A free trial is available for users to experience the service. All processing is done server-side with strict data handling protocols (images are deleted after processing) to ensure user privacy.

    I’d love to hear your thoughts, feedback, and suggestions for improvement. What features would you like to see added?

    Note: This is an experimental tool for entertainment purposes and should not be taken as scientific prediction.

Popularity: 3 points | 3 comments

Show HN: BabyGenerator – AI-Powered Baby Face Preview - Project Screenshot


32. Show HN: Atten – Is Attention Really All Thats Needed?

URL: https://www.atten.app

Author: hubab

Description: It’s no secret that social media companies strive to maximize time spent in their apps—in other words, how much attention we give them. Whether it’s the infinite scroll or endless notifications, these platforms are built to keep us engaged, often at the expense of our focus, productivity, and well-being.

That’s where Atten comes in. It’s a free screen time control app designed to help you reclaim your attention. It’s simple but intentional, offering features to help you limit app usage, schedule focus sessions, and stay mindful of your screen habits. It’s like a “nutrition label” for your phone—helping you be more aware of what you’re consuming and when to stop.

I’ve always been curious about how people defend themselves against these attention-grabbing algorithms. Do you have systems in place to protect your time and mental energy? Do you rely on self-discipline, or do you use screen-time control apps like Atten, AppBlock, Jomo, Opal, or something else?

But here’s a bigger question I’d love your input on: If we all agree you shouldn’t go grocery shopping on an empty stomach, should using tools like Atten become a hard-and-fast rule for our devices? In a world where attention is commoditized, could having these apps enabled by default be as essential as locking your doors at night?

I’d love to hear your thoughts:

Popularity: 2 points | 0 comments

Show HN: Atten – Is Attention Really All Thats Needed? - Project Screenshot


33. Show HN: Created SaaS Liquidation marketplace after 40 failed products myself

URL: https://www.saasliquidate.com/

Author: manojahi

Description: I have been building products for a long time. Launched many SaaS, mobile apps, etc.

Some of them generated some revenue but some failed quickly without making any money.

I was always wondering if there is any way to sell the no-revenue products for cheap because instead of plain shutting them down maybe someone might be looking for a similar product to buy?

Had this idea of having a marketplace for selling no/pre-revenue products in July/August. After talking to a couple of people, Finally I decided to build and launch SaaSLiquidate. It’s a Free marketplace where sellers can list the products that they want to liquidate for cheap. and it’s Free for buyers as well.

The reason behind making it for Free is to have no restrictions for Seller and Buyer and eventually have a proper demand and supply.

Currently, people can list their products for sale or their codebase for sale.

Would love to get some feedback on SaaSLiquidate from you guys

Cheers

Popularity: 3 points | 1 comments

Show HN: Created SaaS Liquidation marketplace after 40 failed products myself - Project Screenshot


34. Show HN: Commit-critic: An open-source, AI-based, AI-built code review tool

URL: https://github.com/m6r-ai/commit-critic

Author: tritondev

Description:

Popularity: 1 points | 0 comments

Show HN: Commit-critic: An open-source, AI-based, AI-built code review tool - Project Screenshot


35. Show HN: Merge Mosaics – The Ultimate Mosaic Online Puzzle for Free

URL: https://mergemosaics.com/

Author: horushe

Description:

Popularity: 2 points | 0 comments

Show HN: Merge Mosaics – The Ultimate Mosaic Online Puzzle for Free - Project Screenshot


36. Show HN: Showcase Your GitHub as a modern, eye-catching resume

URL: https://devresu.me/en

Author: luizcamargodev

Description: Transform your GitHub profile into an impressive professional resume. Free tool for developers to showcase their projects and technical skills.

Project: https://devresu.me/en

Popularity: 2 points | 0 comments

Show HN: Showcase Your GitHub as a modern, eye-catching resume - Project Screenshot


37. Show HN: OpenPdfSaucer a Java library for creating, editing and rendering PDFs

URL: https://github.com/openpdfsaucer/openpdfsaucer

Author: roschdal

Description:

Popularity: 4 points | 0 comments

Show HN: OpenPdfSaucer a Java library for creating, editing and rendering PDFs - Project Screenshot


38. Show HN: ZQDGR a Script Runner for Golang

URL: https://github.com/juls0730/zqdgr

Author: zoezoezoezoe

Description: Hi everyone, recently I was a little tired with how development with Golang can be. I took it upon myself to build a runner for Golang that is quick and dirty, but good enough for me and this amalgamated to Zoe’s Quick and Dirty Golang Runner.

Popularity: 19 points | 7 comments

Show HN: ZQDGR a Script Runner for Golang - Project Screenshot


39. Show HN: A Wrapper for Google Keyword Planner with AI Research Features

URL: https://jsonrepo.com

Author: wesammikhail

Description:

Popularity: 1 points | 0 comments

Show HN: A Wrapper for Google Keyword Planner with AI Research Features - Project Screenshot


40. Show HN: Simplify Tailwindcss with This Library

URL: https://github.com/jnoncode/tailwindbox

Author: encodeincode

Description: TailwindCSS is powerful, but it can be hard to read.

Writing conditional styles can also be a hassle.

That’s why I created this lightweight and simple library.

It makes your TailwindCSS code cleaner and easier to manage.

Try it out, and feel free to share your feedback anytime!

Popularity: 1 points | 1 comments

Show HN: Simplify Tailwindcss with This Library - Project Screenshot


41. Show HN: Directory of Developer Portfolios for Inspiration

URL: https://www.webportfolios.dev

Author: jtrevdev

Description: Browse developer portfolios for inspiration, upload your own developer portfolio for exposure. Stuck? Read guides that help overcome common obstacles when building a developer portfolio

Popularity: 1 points | 0 comments

Show HN: Directory of Developer Portfolios for Inspiration - Project Screenshot


42. Show HN: AI Projects Hub – Submit your AI projects for free

URL: https://aisofto.com/

Author: rahulbstomar

Description:

Popularity: 1 points | 0 comments

Show HN: AI Projects Hub – Submit your AI projects for free - Project Screenshot


Conclusion

Today’s Show HN roundup showcases a diverse range of innovative projects. From AI-powered tools to creative coding solutions, these projects reflect the dynamic nature of our tech community. Which project caught your attention the most? Let us know in the comments!

Tags: #ShowHN #TechInnovation #DeveloperProjects #AI Applications #Open Source Software

← Back to Blog
← SUB Email