Bespoke component drift
Every product surface invents its own button. Variants multiply, spacing rules quietly diverge, and the system becomes a museum of edge cases.
v2.4 · Now with Figma export
Describe your design system. Ship it in components.
Threadline turns a single prompt into a production-ready component library with tokens, primitives, and documentation. Generate once, export anywhere.
Component libraries shipping on Threadline
The problem
Why design systems die
Every team starts with the right intention. Six months later, the system is a graveyard of half-finished components and tokens nobody references.
Documentation rot
The docs are out of date the moment they ship. Engineers grep the codebase. Designers ping in Slack. Nobody trusts what is written down.
Design vs engineering handoff
Figma says one radius. Code uses another. Tokens live in three places and agree on none of them. Every sprint, the gap widens.
Workflow
How Threadline works
Four steps. No configuration sprawl, no boilerplate to delete, no waiting on a Friday model release.
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01
Describe
Write the system in plain language. Mood, palette intent, density, audience. No design jargon required.
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02
Generate
Tokens, primitives, and 40+ components emerge in under a minute. You get code, docs, and a live preview.
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03
Refine
Tweak tokens, regenerate variants, or rewrite the prompt. Threadline keeps your custom edits across regenerations.
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04
Export
One command sends components to your repo, Storybook, or Figma library. You own the code outright.
Templates
Start from a system that fits
Nine production-grade systems built and tested by the community. Fork, regenerate, or pull tokens into your own brief.
Trending
Aurora
by @hadley · 12.4k installs
Warm pastel SaaS system. Lavender and peach tokens, soft 12px radii, generous spacing scale.
Trending
Onyx
by @kim · 9.1k installs
Pure monochrome developer tool aesthetic. Inter mid-weight, tight grids, opinionated dark mode tokens.
Trending
Citrus
by @ravi · 7.8k installs
Bright consumer commerce kit. Sun-yellow primary, friendly rounding, large CTAs, oversized type ramp.
Free
Clinic
by @amelia · 6.2k installs
Calm clinical SaaS. Sky-blue accent, conservative density, accessibility-first color tokens.
Free
Forest
by @tomas · 5.5k installs
Sustainable brand system. Earth-green palette, organic spacing rhythm, serif display option included.
Free
Grape
by @sora · 4.9k installs
Editorial reading product. Violet primary, opinionated typography scale, body-first focus states.
Pro
Coral
by @priya · 3.8k installs
Lifestyle brand kit. Rose-coral primary, romantic curves, generous letter-spacing on display.
Pro
Slate
by @nilsen · 3.2k installs
Enterprise dashboard system. Cool gray foundation, data-density tokens, table-first spacing rules.
Pro
Mint
by @kazuo · 2.7k installs
Fintech personal finance kit. Teal-mint primary, clear data table conventions, accessible chart palette.
Comparison
From quarter-long projects to single-prompt systems
Old way
6 months building from scratch
The traditional path: schedule a design system OKR, hire a system specialist, hold workshops, ship a v0 nobody adopts.
- Cross-functional meetings every week for two quarters
- Hand-rolled token schema that breaks on first edge case
- Components shipped without docs, then docs without owners
- Adoption bottlenecked behind a single overworked lead
With Threadline
6 minutes to v1
Describe what you want. Threadline produces a coherent system with tokens, components, and documentation in one pass.
- One prompt produces 40+ components with consistent rules
- Tokens emitted in W3C DTCG format from minute one
- Storybook stories and MDX docs ship with the components
- Anyone on the team can regenerate, fork, or extend the system
Pricing
Flat pricing. No per-token surprises.
Start free, upgrade when you need round-trip Figma export or team workspaces. Cancel any time.
Hobby
$0/forever
For solo projects, side projects, and the curious.
Start free- 30 generations per month
- Tailwind and vanilla CSS output
- Public template gallery
- Community support
Pro
$20/mo
For working designers and indie engineers shipping real products.
Start Pro- Unlimited generations
- All output targets including CSS-in-JS
- Round-trip Figma export
- Private projects and version history
- CLI and GitHub sync
Team
$200/mo
For product teams shipping a shared system across surfaces.
Talk to sales- Everything in Pro, for up to 10 seats
- Shared workspaces and roles
- SSO and SCIM provisioning
- SOC 2 reports and DPA
- Priority support and onboarding
From the community
Engineers and designers ship faster
Threadline replaced a year of system work for some teams. For others, it became the way every new product spins up.
"We replaced four months of design-system OKR work with a Monday afternoon. The output was opinionated enough to argue with — that is what made it good."
"I used to fork shadcn and reskin it. Now I describe the brand once and Threadline ships me the primitives. It removed a whole genre of repetitive work."
"What sold me was tokens-as-source-of-truth. I edit one variable file and the whole library reshapes itself. No more drift between Figma and code."
"Our Figma library and our React library actually match now. That sentence took five years to be true at my last three jobs."
"I am the entire frontend team. Threadline is the system designer I cannot afford to hire and would not need full-time even if I could."
"It produces code I would write. That is rare. Most generators output something I have to apologise for during review."
Who built this
Built by people who built systems
Threadline is the work of Maya Voss, previously design lead at Linear, and Theo Renn, previously engineer at Vercel.
We spent a decade watching teams pour quarters into design systems that died on the vine. Threadline is the tool we wished existed every time we started over — opinionated where it counts, flexible where it has to be, and shipping real code from the first prompt.
No catches
What you get, plainly stated
Free forever for personal projects
Hobby plan never expires. Build as many solo systems as you like.
No credit card to start
Sign up with email or GitHub. Card is only required when you choose Pro.
Export everything
Tokens, components, docs, Storybook config — yours to take and host anywhere.
Component code is yours
Generated source ships under permissive license. No lock-in, no runtime fees.
Questions
Frequently asked, plainly answered
Does Threadline output Tailwind or CSS-in-JS?
Both. Pick your output target before generation — Tailwind v3+, vanilla CSS with custom properties, styled-components, Stitches, Emotion, or vanilla-extract. Every component compiles to clean, idiomatic source for that target. Switch targets and regenerate without losing your token edits.
Can I export to Figma?
Yes. Pro and Team plans include round-trip Figma export. Tokens become Figma variables, components become library components with variants. Open the exported file in Figma and your design team can iterate alongside engineering — edits sync back through the Threadline CLI.
What does it cost to run AI generation under the hood?
Generation is included in your plan — no per-prompt fees, no token billing. We absorb model cost so your monthly bill stays predictable. Hobby allows 30 generations per month; Pro is unmetered for typical use. If you are running thousands of generations per month, Team includes priority queueing.
Is my prompt data private?
Prompts and generated output are never used to train models. Team workspaces are isolated, encrypted at rest with AES-256 and in transit with TLS 1.3. Delete a project and we purge artifacts from cold storage within 30 days. Team plan ships with a signed DPA on request.
Can I bring my own design tokens?
Yes. Upload a tokens.json file in W3C DTCG format or paste raw CSS custom properties. Threadline locks your tokens as ground truth and generates components that reference them — no drift, no surprise palette swaps. You can also import from Figma variables or a Style Dictionary config.
Who owns the generated component code?
You do. Output is yours under an MIT-equivalent grant — commercial use, redistribution, modification, all permitted. Threadline retains no rights to the code we generate for your account. There is no runtime dependency on our servers; the code runs anywhere your app runs.
Does it work with my existing repo?
Threadline ships components as files. Drop them into any React, Vue, or Svelte project. The CLI can scaffold into a monorepo, an existing app/components folder, or a fresh Storybook workspace. GitHub sync handles pull requests on regeneration so you review changes the normal way.
What happens if I cancel my subscription?
Your generated code stays yours forever. Past exports remain downloadable for 12 months after cancellation. You lose access to regeneration and new templates, but nothing you have already shipped is affected. You can resubscribe later and pick up where you left off.
Describe your design system. Ship it tonight.
Free forever for personal projects. No credit card. Export everything.