Top 12 Open-Source Alternatives to Whimsical Wireframes

Product categories

API CSS Framework Design Collaboration Design Tools Developer Tools Development Tools Flowcharts Low Code Productivity Prototyping UI Website Design

Summary

The top open-source alternatives to Whimsical Wireframes are Tailwind CSS, FlowBite Figma, and Specify App. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Tailwind CSS Landing Page
1

Tailwind CSS

A utility-first CSS framework for rapidly building custom user interfaces.
Pricing:
- Open Source
#Developer Tools #Design Tools #Website Design 868 social mentions
FlowBite Figma Landing Page
2

FlowBite Figma

Build UI interfaces and simplify the process of integrating into live websites with Tailwind CSS
Pricing:
- Open Source
#Design Tools #Developer Tools #User Experience 7 social mentions
Specify App Landing Page
3

Specify App

Specify is the Design Data Platform for your design & dev teams:🎨 Collect your design tokens and assets from Figma🤖 Store them in a single source of truth⚡️ Distribute your brand with custom delivery pipelinesGet started for free → specifyapp.com
Pricing:
- Open Source
#Design Tools #Developer Tools #API 5 social mentions
React Proto Landing Page
4

React Proto

React application design and prototyping tool
Pricing:
- Open Source
#Prototyping #Design Collaboration #Design Tools 1 social mentions
Bootstrap Landing Page
5

Bootstrap

Simple and flexible HTML, CSS, and JS for popular UI components and interactions
Pricing:
- Open Source
#CSS Framework #Development Tools #Design Tools 326 social mentions
Mydraft.cc Landing Page
6

Mydraft.cc

100% free wireframing
Pricing:
- Open Source
#Prototyping #Design Collaboration #Flowcharts 1 social mentions
Milligram Landing Page
7

Milligram

A minimalist CSS framework
Pricing:
- Open Source
#CSS Framework #Development Tools #Design Tools 9 social mentions
Material UI Landing Page
8

Material UI

A CSS Framework and a Set of React Components that Implement Google's Material Design
Pricing:
- Open Source
#Design Tools #Development Tools #Developer Tools 75 social mentions
Spectre.css Landing Page
9

Spectre.css

Lightweight, responsive and modern CSS framework for faster and extensible development.
Pricing:
- Open Source
#CSS Framework #Development Tools #Design Tools 4 social mentions
Vue Design System Landing Page
10

Vue Design System

An open source tool for building Design Systems with Vue.js
Pricing:
- Open Source
#Design Tools #Website Design #Prototyping
Bulma Landing Page
11

Bulma

Bulma is an open source CSS framework based on Flexbox and built with Sass. It's 100% responsive, fully modular, and available for free.
Pricing:
- Open Source
#CSS Framework #Development Tools #Design Tools 109 social mentions
Semantic UI Landing Page
12

Semantic UI

A UI Component library implemented using a set of specifications designed around natural language
Pricing:
- Open Source
#CSS Framework #Design Tools #Development Tools 17 social mentions