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Designer Suite

Design in the real product

Fei Studio lets designers work directly in the live codebase, using real components, constraints, and states instead of static mockups.
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Work on Product

Work on the real product with components that ship

Fei Studio lets designers work with the actual product UI components, structure, and patterns. Nothing is recreated or approximated. What you design is built from what already exists in your product.

Own the result

The changes you make become real product code

Fei studio turns your edits, updates and changes into code that fits your product and moves through the normal review and approval flow. Engineers review and refine it, not rebuild it.

Use cases

Fei Studio empowers the whole team

Including Product Managers, Designers & Engineers
All
Product
Design
Engineering
Validate Product Ideas
Turn early ideas into production-ready changes, release them behind feature flags, and learn from real user behavior before committing fully.
Product
Prototype With Real Code
Designers prototype new experiences directly in the product environment instead of relying only on static mockups.
Design
Accelerate Feature Delivery
Move from product requests, screenshots, or tickets to production-aligned pull requests faster by reducing handoffs.
Product Engineering
Improve Existing Features
Refine existing product experiences and workflows without rebuilding them from scratch.
Product Design Engineering
Refactor Legacy Interfaces
Modernize legacy UI surfaces and migrate them toward current component standards while preserving the structure of the real codebase.
Engineering Design
Rapid Product Iteration
Explore multiple variations of product flows quickly inside the real product environment to accelerate discovery and refinement.
Product Design
Stakeholder Demos
Create realistic demos using the real product environment instead of static mockups for leadership or customer conversations.
Product Design
Design System Alignment
Generate product updates that reuse existing components and patterns to maintain consistency across the application.
Design Engineering
Turn Support Feedback Into Product Changes
Translate customer feedback, bug reports, and support tickets into concrete product improvements aligned with the codebase.
Product
Explore UX Improvements
Experiment with navigation, layout, and interaction improvements directly in the real product environment.
Design Product
Build Enterprise Customizations
Create tailored product experiences required for enterprise customers while keeping changes aligned with the existing architecture.
Engineering Product
Test Feature Variations
Generate alternative versions of product flows and interfaces to explore new directions before committing to implementation.
Product Design

Why teams choose Fei Studio

Fei Studio improves the designer-to-developer handoff by generating product changes aligned to the existing system, rather than handing engineering a purely static design artifact.

More realistic prototyping grounded in real components

Faster iteration without waiting for engineering cycles

Fewer translation gaps between design and implementation

Product changes built on actual components and standards

Easier collaboration with PMs and engineers

Deliverables that engineering can actually push to production

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