Rebrain.gg
Doom learn, don't doom scroll
Details
- External ID
- 47060220
- Source
- HN
- Company
- —
- Product
- —
- Website domain
- —
- Launched
- Feb. 18, 2026
- Cohort
- —
- Upvotes
- 111
- Upvotes percentile
- 0.9022911051212938
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:25 p.m.
- Updated at
- Sept. 7, 2026, 9:25 p.m.
Description
Hi HN,I built https://rebrain.gg. It's a website which is intended to help you learn new things.I built it for two reasons:1. To play around with different ways of interacting with a LLM. Instead of a standard chat conversation, the LLM returns question forms the user can directly interact with (and use to continue the conversation with the LLM).2. Because I thought it would be cool to have a site dedicated to interactive educational content instead of purely consuming content (which I do too much).An example of a (useful-for-me) interactive conversation is: https://rebrain.gg/conversations/6. In it I'm learning how to use the `find` bash command. (Who ever knew to exclude a directory from a look-up you need to do `find . -path <path> -exclude -o <what you want to look for>`, where `-o` stands for "otherwise"!)Still very early on, so interested in and open to any feedback.Thanks!
Enrichment
- Theme
- niche social and community platforms
- Vertical
- Education
- Function
- Vertical SaaS
- Audience
- B2C
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- gamified learning platform
- Manually corrected
- False
Could you build this?
Yes This is an educational web application that wraps LLM structured JSON outputs into interactive quiz forms and UI cards.
Discussion
20 comments analyzed.
Competitors mentioned: ChatGPT / Claude APIs, xikipedia.org, Traditional books and documentation
Concerns raised: Accuracy/correctness of material generated, Cost of using best models not affordable, Poor UX design and color contrast, Over-reliance on multiple choice questions, High barrier to usage without pre-loaded sources
Feature requests: Settings panel for question types and ratio configuration, Chat mode for discussion instead of questions, Freeform/text entry questions beyond multiple choice, Upload documents or sources to seed learning, Move +New conversation button to upper right corner
Competitors
Other products that read as similar to this one — 100 launches clear the similarity bar, closest 8 shown.
Attention rank: #19 of 101 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 112 days after the earliest competitor.
- Doomersion - Learn Languages by Doomscrolling · yc · 2026-03-09 · 12 upvotes · similarity 0.44
- LLMnesia · hn · 2026-04-03 · 8 upvotes · similarity 0.41
- Bored People Chat · hn · 2026-06-30 · 6 upvotes · similarity 0.41
- I taught LLMs to play Magic: The Gathering against each other · hn · 2026-02-17 · 117 upvotes · similarity 0.40
- I built a music theory course with games and spaced repetition · hn · 2026-04-16 · 5 upvotes · similarity 0.40
- Learning Rust by writing a Markdown to HTML compiler · hn · 2026-07-29 · 25 upvotes · similarity 0.39
- A Daily Bible Game · hn · 2026-01-08 · 49 upvotes · similarity 0.39
- The HN Arcade · hn · 2026-01-28 · 352 upvotes · similarity 0.39
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a vertical saas tool for Insurance yet.