Pencil

Pencil

Pencil.dev
Flow Pencil

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Flow:

About

It's hard to build smart tools for dynamic languages like JavaScript. Flow understands your code and makes its knowledge available, enabling other smart tools to be built on top of Flow. Making major changes to large codebases can be scary. Flow helps you refactor safely, so you can focus on the changes you want to make, and stop worrying about what you might break. Working in a codebase with lots of developers can make it difficult to keep your master branch working. Flow can help prevent bad rebases. Flow can help protect your carefully designed library from misuse and misinterpretation. And Flow can help you understand the code you wrote six months ago.
Pencil:

About

Pencil.dev is an AI-powered design-in-code canvas and creative tool that brings visual interface design directly into development environments like Cursor, VS Code, and other IDEs so designers and engineers can work without handoffs between tools. Built around an agent-driven MCP (Model Context Protocol) canvas and an open design format that lives in your codebase, Pencil lets you draw, iterate, and generate pixel-perfect UI screens with AI assistance while keeping the design files versioned in Git alongside your source code, enabling branches, merges, and rollbacks like regular code. It eliminates the friction of switching between tools by embedding a Figma-like canvas into the IDE, supports importing frames and assets from Figma with vectors and styles intact, and lets you manipulate design elements directly with familiar editing panels, layers, and CSS-like properties, while AI models help generate screens, flows, and components in parallel.
Flow:

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported
Pencil:

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported
Flow:

Audience

Developers in need of astatic type checker for JavaScript
Pencil:

Audience

Front-end developers seeking an AI-integrated visual design canvas inside their coding workflow to streamline UI design and bridge the gap between design and production code
Flow:

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported
Pencil:

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported
Flow:

API

Offers API Not Supported
Pencil:

API

Offers API Supported
Flow:

Screenshots and Videos

Pencil:

Screenshots and Videos

Flow:

Pricing

Free
Free Version Supported
Free Trial Not Supported
Pencil:

Pricing

Free
Free Version Supported
Free Trial Not Supported
Flow:

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software
Pencil:

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software
Flow:

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported
Pencil:

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported
Flow:

Company Information

Flow
flow.org
Pencil:

Company Information

Pencil.dev
United States
www.pencil.dev/
Flow:

Alternatives

Constellation

Constellation

ShiftinBits Inc
Pencil:

Alternatives

Figma

Figma

4.7 out of 5 stars
Flow:
Claude Code

Claude Code

Anthropic
5.0 out of 5 stars
Pencil:
Flow:
Pencil:
Flow:
Pencil:
Fusion

Fusion

Builder.io
Flow:
Pencil:
Flow:

Categories

Pencil:

Categories

Flow:

Integrations

CSS Not Supported
Claude Code Not Supported
CodeKeep Supported
Cursor Not Supported
Figma Not Supported
Git Not Supported
JavaScript Supported
Model Context Protocol (MCP) Not Supported
NVIDIA Omniverse Machinima Supported
OpenAI Codex Not Supported
Playwright Not Supported
Puppeteer Not Supported
Visual Studio Code Not Supported
Pencil:

Integrations

CSS Supported
Claude Code Supported
CodeKeep Not Supported
Cursor Supported
Figma Supported
Git Supported
JavaScript Not Supported
Model Context Protocol (MCP) Supported
NVIDIA Omniverse Machinima Not Supported
OpenAI Codex Supported
Playwright Supported
Puppeteer Supported
Visual Studio Code Supported
Flow:
Claim Flow and update features and information
Claim Flow and update features and information
Pencil:
Claim Pencil and update features and information
Claim Pencil and update features and information