Rebrain.gg
Ranked 7 of 11 online learning platforms by recommenders
Learn by answering form-based questions instead of asking an AI, a fresh alternative to doomscrolling. Common caveat: poor colour contrast and a confusing interface.
Learn by answering form-based questions instead of asking an AI, a fresh alternative to doomscrolling. Common caveat: poor colour contrast and a confusing interface.
22 people gave an opinion
- recommend it
- 11
- criticize it
- 11
- approval share
- 50%
Recommended in 1 of 13 months
- November 2025: not recommended
- December 2025: not recommended
- January 2026: not recommended
- February 2026: recommended
- March 2026: not recommended
- April 2026: not recommended
- May 2026: not recommended
- June 2026: not recommended
- July 2026: not recommended
- August 2026: not recommended
- September 2026: not recommended
- October 2026: not recommended
- November 2026: not recommended (month in progress)
Why it doesn’t carry the badge
- 11 people recommend itNeeds 10 or more, met.
- 1 recommender for every criticNeeds 2 to 1 or better, not met.
- Recommended in 1 of 13 monthsNeeds 4 or more, not met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Learn by answering, not AI
“The form-based interaction is a nice middle ground between passive reading and open-ended chat.”
Comment from 19 Feb 2026 in “Show HN: Rebrain.gg – Doom learn, don't doom scroll” “Instead of an AI telling you the answer, you learn -- this is fantastic.”
Comment from 19 Feb 2026 in “Show HN: Rebrain.gg – Doom learn, don't doom scroll” Interesting, worth sharing approach
“It's worth sharing because it's cool, even if it's not perfect yet!”
Comment from 18 Feb 2026 in “Show HN: Rebrain.gg – Doom learn, don't doom scroll” “An interesting approach, Good luck with it!”
Comment from 18 Feb 2026 in “Show HN: Rebrain.gg – Doom learn, don't doom scroll”
What people warn about
Each mark is one comment
Cluttered, confusing interface
“all colors and bubbles and I am totally lost just trying to make sense of what is going on”
Comment from 19 Feb 2026 in “Show HN: Rebrain.gg – Doom learn, don't doom scroll” “button is distracting, floating on the botton.”
Comment from 19 Feb 2026 in “Show HN: Rebrain.gg – Doom learn, don't doom scroll” “the cogintive load being unruly”
Comment from 18 Feb 2026 in “Show HN: Rebrain.gg – Doom learn, don't doom scroll” Buggy, broken questions
“the site is broken and clearly vibe coded, no Fs given to it actually working or making any sense”
Comment from 19 Feb 2026 in “Show HN: Rebrain.gg – Doom learn, don't doom scroll” “some of the questions did nothing after clicking “check”, then it just ended”
Comment from 19 Feb 2026 in “Show HN: Rebrain.gg – Doom learn, don't doom scroll” “The very first question is full of obvious bugs.”
Comment from 18 Feb 2026 in “Show HN: Rebrain.gg – Doom learn, don't doom scroll” Colours hard to read
“The color scheme is painfully low-contrast. I can barely read it.”
Comment from 18 Feb 2026 in “Show HN: Rebrain.gg – Doom learn, don't doom scroll” “The Electronics topic was white on yellow, completely unreadable.”
Comment from 19 Feb 2026 in “Show HN: Rebrain.gg – Doom learn, don't doom scroll” “clashing colours and a general lack of UX design principles”
Comment from 19 Feb 2026 in “Show HN: Rebrain.gg – Doom learn, don't doom scroll” Content accuracy concerns
“I am not a big fan of AI-generated educational content, mostly because it's a great way to confidently learn falsehoods and misconceptions.”
Comment from 18 Feb 2026 in “Show HN: Rebrain.gg – Doom learn, don't doom scroll” “Your obvious first port of call IMO is correctness of material, where there's room for improvement”
Comment from 19 Feb 2026 in “Show HN: Rebrain.gg – Doom learn, don't doom scroll”
Other online learning platforms people recommend
The four most recommended other online learning platforms, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| Khan Academy | 67 | 17 | 80% | 12 | 7 yrs5 owners | Approved |
| Coursera | 26 | 37 | 41% | 6 | — | — |
| Udemy | 16 | 44 | 27% | 5 | 10 yrs4 owners | — |
| MIT OpenCourseWare | 14 | 2 | 88% | 7 | — | Approved |
| Rebrain.ggThis page | 11 | 11 | 50% | 1 | — | — |
What people said
21 of the 23 comments that mention it, newest first. Each links to the original comment.
“button is distracting, floating on the botton.”
“the barrier to usage was too high as most people don’t have a source ready”
“Your obvious first port of call IMO is correctness of material, where there's room for improvement”
“Instead of an AI telling you the answer, you learn -- this is fantastic.”
“clashing colours and a general lack of UX design principles”
“But if I have to read a wall of text, it's not an alternative to doomscrolling, it's an alternative to reading a book or documentation.”
“the site is broken and clearly vibe coded, no Fs given to it actually working or making any sense”
“The Electronics topic was white on yellow, completely unreadable.”
“The form-based interaction is a nice middle ground between passive reading and open-ended chat.”
“all colors and bubbles and I am totally lost just trying to make sense of what is going on”
“I'm just not a fan of creating an account and password.”
“some of the questions did nothing after clicking “check”, then it just ended”
“The color scheme is painfully low-contrast. I can barely read it.”
“An interesting approach, Good luck with it!”
“I like the idea of the user picking a subject”
“It's worth sharing because it's cool, even if it's not perfect yet!”
“The very first question is full of obvious bugs.”
“I am not a big fan of AI-generated educational content, mostly because it's a great way to confidently learn falsehoods and misconceptions.”
“the cogintive load being unruly”
“Improving the UI would only take you a few prompts”
“Doom learning instead of doom scrolling”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.