GolemUI
Declarative Form Engine
Details
- External ID
- 48748182
- Source
- HN
- Company
- —
- Product
- GolemUI
- Website domain
- golemui.com
- Launched
- July 1, 2026
- Cohort
- —
- Upvotes
- 53
- Upvotes percentile
- 0.8554360812425329
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Description
We're a team of three friends who have been working with forms and Open Source for a decade, and we joined forces together to create something where we can apply all of our experience.We recently released GolemUI, an Open Source library to generate forms dynamically from JSON definitions, with a typed layer to simplify authoring.This library has a lot to offer. These are the main characteristics:1. A JSON engine. The form is governed by a JSON definition that you can store in a DB, version, diff, or generate it with LLMs as a validated JSON.2. We provide also 28 headless components (and growing) that you can style with CSS variables. We offer APIs so you can drop in Material, Shoelace, or your own components.3. A DX typed authoring layer on top to write forms programmatically, that generates JSON. So you don't have to write it.4. The same definition can render the UI components in React, Angular, Vue, Lit, or Vanilla JS.5. We also have a deterministic MCP that has tools for to validate the model's output, generate JSONs or code, and ensure that the definition returned by the LLM is always valid.You can find more information here:Happy to hear any feedback from you and answer any questions!
Enrichment
- Theme
- niche developer utilities and toolchains
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- declarative form engine
- Manually corrected
- False
Could you build this?
Yes GolemUI is a dynamic JSON-schema-driven form engine for frontend frameworks, which is a classic UI component library task well within the capabilities of AI-assisted coding.
Discussion
20 comments analyzed.
Competitors mentioned: Zod for form validation, Svelte Kit for form handling, React form libraries
Concerns raised: Lacks progressive enhancement and server-side validation, JavaScript required - forms don't work without it, Accessibility issues with validation timing, No native Svelte support, Demo widgets have bugs (currency input, calendar selection, dropdown search)
Feature requests: Progressive enhancement support, Full-stack approach with server integration, Svelte framework support, Validation trigger mode default to 'blur' for accessibility, Earthy color scheme redesign
Competitors
Other products that read as similar to this one — 119 launches clear the similarity bar, closest 8 shown.
Attention rank: #18 of 120 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 242 days after the earliest competitor.
- OpenUI · hn · 2026-03-11 · 8 upvotes · similarity 0.62
- Domphy · hn · 2026-06-19 · 11 upvotes · similarity 0.45
- A stateful UI runtime for reactive web apps in Go · hn · 2026-04-14 · 14 upvotes · similarity 0.44
- ThreeJS Generator · ph · 2026-09-18 · 8 upvotes · similarity 0.43
- ki-forms Studio · ph · 2026-09-25 · 2 upvotes · similarity 0.42
- JSON Object Validator · ph · 2026-09-24 · 2 upvotes · similarity 0.42
- FormGrid · hn · 2026-07-09 · 13 upvotes · similarity 0.41
- I built a zero-browser, pure-JS typesetting engine for bit-perfect PDFs · hn · 2026-03-01 · 78 upvotes · similarity 0.41
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a dev tools tool for Sales yet.