Rails UI
Ranked 8 of 14 UI component libraries by recommenders
Developers recommend it for saving time building Rails interfaces through a free open source gem, though critics find the $299 to $799 pricing high.
Developers recommend it for saving time building Rails interfaces through a free open source gem, though critics find the $299 to $799 pricing high.
26 people gave an opinion
- recommend it
- 10
- criticize it
- 16
- approval share
- 38%
Recommended in 1 of 13 months
- November 2025: not recommended
- December 2025: not recommended
- January 2026: recommended
- February 2026: not 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
- 10 people recommend itNeeds 10 or more, met.
- 0.6 recommenders 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
Saves time on Rails projects
“Having Rails-ified components (and themes) saves a lot of time so this would more than pay for itself within a few hours of consulting work”
Comment from 22 Jan 2026 in “Show HN: Rails UI” “Ultimately, it saves me a bunch of time, which to me is the most valuable thing there is.”
Comment from 22 Jan 2026 in “Show HN: Rails UI” “I can build an MVP in less than a weekend using Rails, Rails UI, and some AI”
Comment from 21 Jan 2026 in “Show HN: Rails UI” - Comment from 21 Jan 2026 in “Show HN: Rails UI”
- Comment from 21 Jan 2026 in “Show HN: Rails UI”
Free open source Ruby gem
“Designed and built this all as a Ruby gem, you can one-click install if you want to build prototypes with Rails even faster.”
Comment from 21 Jan 2026 in “Show HN: Rails UI” “The railsui gem itself has more complete, working components and pages.”
Comment from 21 Jan 2026 in “Show HN: Rails UI” “There's an open source Ruby gem you can use at will.”
Comment from 21 Jan 2026 in “Show HN: Rails UI” Fast for prototypes and MVPs
“Designed and built this all as a Ruby gem, you can one-click install if you want to build prototypes with Rails even faster.”
Comment from 21 Jan 2026 in “Show HN: Rails UI” “I can build an MVP in less than a weekend using Rails, Rails UI, and some AI”
Comment from 21 Jan 2026 in “Show HN: Rails UI” “it's a huge head start if you're building quickly”
Comment from 21 Jan 2026 in “Show HN: Rails UI” - Comment from 21 Jan 2026 in “Show HN: Rails UI”
What people warn about
Each mark is one comment
Price high for what it offers
“I feel like the Ruby gem and integration is worth a premium, but I'm not sure that the premium matches what you're charging.”
Comment from 22 Jan 2026 in “Show HN: Rails UI” “it's hard for me to consider $299/$799 if I can buy a beautiful theme off of somewhere like ThemeForest for $20 or $30”
Comment from 21 Jan 2026 in “Show HN: Rails UI” “Pricing per seat makes little sense for a component library.”
Comment from 21 Jan 2026 in “Show HN: Rails UI” - Comment from 22 Jan 2026 in “Show HN: Rails UI”
- Comment from 21 Jan 2026 in “Show HN: Rails UI”
Components are demos or scaffolds
“I would make it clear in the landing page that the components are for demonstration purposes”
Comment from 21 Jan 2026 in “Show HN: Rails UI” “this site so far is just a bunch of specialised scaffolds for certain use-cases”
Comment from 21 Jan 2026 in “Show HN: Rails UI” Unintuitive and broken elements
“it's unintuitive and has a frustratingly short timeout before cycling to the next ui element”
Comment from 22 Jan 2026 in “Show HN: Rails UI” “a lot of these elements don't seem to work”
Comment from 21 Jan 2026 in “Show HN: Rails UI”
Other UI component libraries people recommend
The four most recommended other UI component libraries, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| shadcn/ui | 82 | 54 | 60% | 12 | 1 yr3 owners | — |
| Jelly UI | 41 | 38 | 52% | 1 | — | — |
| Tailwind UI | 38 | 28 | 58% | 3 | — | — |
| Performative-UI | 38 | 8 | 83% | 2 | — | — |
| Rails UIThis page | 10 | 16 | 38% | 1 | — | — |
What people said
All 36 comments that mention it, newest first. Each links to the original comment.
“Ultimately, it saves me a bunch of time, which to me is the most valuable thing there is.”
“I don't think the target audience of RailsUI are people who want to use a front-end javascript framework.”
“300$/year is the cheapest option for a solo dev? seriously?”
“it's unintuitive and has a frustratingly short timeout before cycling to the next ui element”
“It's switching components every 8 seconds, like a carousel.”
“This looks infinitely better than yet another, generic web styling framework.”
“They switch to a random component after a while.”
“None of this is hard to create from scratch honestly.”
“I use neither Hotwire nor Tailwind, and "latest Rails point release only" is a rather harsh restriction too.”
“Having Rails-ified components (and themes) saves a lot of time so this would more than pay for itself within a few hours of consulting work”
“Rails UI goes the extra mile as this sentence on the JavaScript page explains”
“I feel like the Ruby gem and integration is worth a premium, but I'm not sure that the premium matches what you're charging.”
“the cool thing is it could be used on a project like the one above without clashing with anything”
“the animating effect for the brand colour often had a colour contrast around the 1.0 range”
“This feels built for humans.”
“Pricing per seat makes little sense for a component library.”
“it's hard for me to consider $299/$799 if I can buy a beautiful theme off of somewhere like ThemeForest for $20 or $30”
“This definitely does fill a gap that Rails has.”
“There's an open source Ruby gem you can use at will.”
“Rails UI is more of a hybrid as it offers UI components plus optional pages that build out a theme using those components.”
“this site so far is just a bunch of specialised scaffolds for certain use-cases”
“I would make it clear in the landing page that the components are for demonstration purposes”
“this post just seems like blatant advertising”
“it's a huge head start if you're building quickly”
“There are much more comprehensive tools of similar nature that are offered for free.”
“I can build an MVP in less than a weekend using Rails, Rails UI, and some AI”
“Broken in Safari on iphone.”
“great for building 0-1 ideas faster”
“I shouldn't be accidentally scrolling left and right on the page on mobile”
“The railsui gem itself has more complete, working components and pages.”
“a lot of these elements don't seem to work”
“nice work on the library!”
“Designed and built this all as a Ruby gem, you can one-click install if you want to build prototypes with Rails even faster.”
“God grant me the confidence of whoever vibe coded this”
“But this one costs $799 a year.”
“Is this another Tailwind wrapper? Yes, it is.”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.