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I kept bookmarking in my browser (or in my head) all sorts of AI demos that you can actually try. So I built this directory to easily find and go to them. Free only.

I added a label to show if they make you login or not.

I also added a Showcase section to promote and show videos from enthusiasts doing their own demos.

If you know of any demos that I am missing, let me know, I'll add it and put you in the showcase or featured section (if you'd like).

Feedback welcome :)

Comments URL: https://news.ycombinator.com/item?id=43770066

Points: 1

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Article URL: https://www.nayuki.io/page/reference-huffman-coding

Comments URL: https://news.ycombinator.com/item?id=43770041

Points: 1

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Article URL: https://news.alvaroduran.com/p/payments-patterns-elements-of-reusable

Comments URL: https://news.ycombinator.com/item?id=43770036

Points: 2

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Just launched https://flexapp.ai with Supabase integration and AI-driven mobile apps. It lets you generate code with authentication, databases, and AI features.

What FlexAppAI does now (just launched v0.2): - Generates complete React Native + Supabase code from a text prompt - Handles auth, database schema, storage, and edge functions - Integrates DALL-E and LLMs if you want AI features - Works with Expo for easy testing on your devices

Real example: I built a story generator app recently with Supabase backend and AI in ~5 mins

1300+ developers signed up in just the past month. So it validates the idea and I will keep making it better.

Looking for feedback and suggestions.

Comments URL: https://news.ycombinator.com/item?id=43770025

Points: 2

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Article URL: https://www.nytimes.com/2025/04/21/technology/google-search-remedies-hearing.html

Comments URL: https://news.ycombinator.com/item?id=43770021

Points: 2

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I created this book by compiling my conversations with an LLM while learning to work with Kubernetes APIs using Go. All the content is free. Enjoy the read! :)

Comments URL: https://news.ycombinator.com/item?id=43769998

Points: 1

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Article URL: https://educatedguesswork.org/posts/memory-management-5/

Comments URL: https://news.ycombinator.com/item?id=43769996

Points: 2

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I built Looset Graph [1], a free/open-source tool for visualizing concept maps and mind maps. It lets you map relationships between ideas, topics, or entire knowledge domains.

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Key features:

- Interactive: Fold/collapse nodes, drag to reorganize, and define graphs from plain text.

- Wikipedia demo: Extracted connections from the Mathematics Wikipedia page [2] to auto-generate a graph [3]. Shows how algebra, geometry, and calculus relate.

- Built with ClojureScript and Re-Frame.

Why? I wanted a tool to simplify complex networks for students, researchers, or anyone untangling interconnected ideas.

Try it:

- Live demo (Maths example): [3]

- GitHub repo: [1]

- Demo video: [4]

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Feedback wanted:

1. Usefulness: Would you use this for learning, planning, or brainstorming?

2. Priorities: Should I add more visualization features (clustering, edge labels) or focus on easier graph creation (e.g., Wikipedia imports)?

3. First impressions: What stands out (good or bad)?

Tech stack: ClojureScript + Re-Frame. No ads, no tracking.

[1] https://github.com/JpOnline/looset-graph

[2] https://en.wikipedia.org/wiki/Mathematics

[3] https://jponline.github.io/looset-graph/?example=maths

[4] https://youtu.be/kODflOgOMpc

Comments URL: https://news.ycombinator.com/item?id=43769995

Points: 1

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I was working as a software developer at a 15-person startup. We posted one job, and within days got thousands of resumes.

Since we didn’t have recruiters, engineers (like me) had to manually go through them. Most didn’t match the job description at all.

That experience inspired me to build FilterResumes – a tool that automatically scores and ranks resumes based on how well they match your JD.

It's fully automated and works with any job description + a batch of resumes.

Would love your thoughts and feedback!

Comments URL: https://news.ycombinator.com/item?id=43769966

Points: 1

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Article URL: http://alvyray.com/Memos/CG/Microsoft/6_pixel.pdf

Comments URL: https://news.ycombinator.com/item?id=43769959

Points: 2

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Article URL: https://twitter.com/slow_developer/status/1914666025087304122

Comments URL: https://news.ycombinator.com/item?id=43769958

Points: 2

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Article URL: https://michal.sapka.pl/2025/commodore-64-assembly-part-4-how-does-the-machine-execute-machine-code/

Comments URL: https://news.ycombinator.com/item?id=43769955

Points: 1

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Article URL: https://www.theregister.com/2025/04/19/us_crosswalk_button_hacking/

Comments URL: https://news.ycombinator.com/item?id=43769816

Points: 1

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Article URL: https://moving-news.com/

Comments URL: https://news.ycombinator.com/item?id=43769802

Points: 1

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Article URL: https://torrentfreak.com/mpa-and-riaa-want-to-be-heard-in-crucial-dmca-subpoena-appeal/

Comments URL: https://news.ycombinator.com/item?id=43769798

Points: 1

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Article URL: https://www.wikidata.org/wiki/Q1229410

Comments URL: https://news.ycombinator.com/item?id=43769797

Points: 1

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Article URL: https://reconfigured.io/blog/mcp-guide-understanding-ai-agent-protocol

Comments URL: https://news.ycombinator.com/item?id=43769791

Points: 1

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Article URL: https://www.macrumors.com/2025/04/22/siri-management-team-overhaul/

Comments URL: https://news.ycombinator.com/item?id=43769784

Points: 1

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Article URL: https://www.techdirt.com/2025/04/11/vizio-shows-what-happens-when-u-s-fascism-and-tv-enshittification-meet/

Comments URL: https://news.ycombinator.com/item?id=43769775

Points: 1

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Article URL: https://xania.org/202504/blog-modernisation

Comments URL: https://news.ycombinator.com/item?id=43769773

Points: 1

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