TweakCN

TweakCN is a free, open-source visual theme editor designed specifically for the shadcn/ui component library. It helps developers and designers quickly customize distinctive UI themes through a no-code interface, with real-time preview and one-click export of Tailwind CSS configurations, boosting visual customization efficiency and brand differentiation for projects.

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shadcn/ui theme editorTailwind CSS theme generatorno-code UI customization toolvisual theme designfrontend development toolopen-source theme editorNext.js theme configuration

Features of TweakCN

Visual editor interface—edit colors, typography, spacing, and other styles for shadcn/ui components in real time, without writing code.

Built-in preset theme library with one-click application of professionally designed theme schemes.

Supports advanced color customization, including primary, secondary, and semantic colors for light and dark modes.

One-click generation and export of complete Tailwind CSS configuration code and CSS custom properties.

Fully compatible with Tailwind CSS v3 and v4, supporting multiple color formats such as OKLCH, HSL, RGB.

Built-in contrast checker to help ensure accessibility compliance.

Generated themes are applied as separate configurations and won't overwrite existing project themes.

Figma Community integration: a Figma plugin to import generated themes and synchronize design variables with code.

Use Cases of TweakCN

For frontend developers quickly generating branded themes for Next.js projects based on shadcn/ui and Tailwind CSS.

When UI/UX designers need to provide visual designs with code-ready assets for the development team.

Used by startups looking to quickly establish a distinctive visual style for product prototypes or MVPs.

When developers need to adjust existing shadcn/ui themes to align with new brand guidelines.

For design system maintainers to generate consistent yet distinguishable theme variants across product lines.

Indie developers wanting to quickly try multiple color schemes and preview actual component rendering.

FAQ about TweakCN

QWhat is TweakCN?

TweakCN is a free, open-source visual theme editor designed for the shadcn/ui component library, enabling users to customize UI themes via a no-code interface and export Tailwind CSS configurations.

QIs TweakCN free to use?

Based on available information, TweakCN is a free, open-source tool; users can access its core features online without paying.

QWhat tech stacks does TweakCN support?

TweakCN deeply integrates with the shadcn/ui design spec, fully supporting Tailwind CSS v3 and v4, with theme code ready to use in Next.js and other projects.

QDo I need to register an account to use TweakCN?

TweakCN is an out-of-the-box tool; users can usually use its theme editing features online without registering.

QHow do I integrate TweakCN's exported code into my project?

TweakCN can export a complete Tailwind CSS configuration and CSS custom properties with one click; you can copy these into your project configuration files for immediate use.

QDoes TweakCN support dark mode?

Yes, TweakCN supports deep color customization, allowing separate color variables for light and dark modes.

QCan TweakCN collaborate with design tools?

TweakCN offers a Figma Community plugin to import generated themes into Figma, enabling synchronization between design variables and code.

QWhat is the current development stage of TweakCN?

According to public information, TweakCN is currently in beta, maintained and regularly updated by the open-source community.

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