Powerful full-stack app generation from natural language, but offers more polished UI components and smoother deployment flows.
#1Base44 records 14,039,232 monthly visits with +0.5% month-over-month growth and Freemium, Paid, Contact for Pricing pricing. TestCraft records 0 monthly visits with — growth and Freemium pricing.

GPT-powered test idea generation and script creation inside your browser
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | base44.com | chromewebstore.google.com |
| Pricing Model | Freemium, Paid, Contact for Pricing | Freemium |
| Monthly Visits | 14.04M (14,039,232) | 0 (0) |
| MoM Traffic Delta | +74.64K (+0.5%) | 0 (—) |
|---|
| Primary Market & Share | 🇺🇸 United States (32.1%) | 🌐 Global (—) |
|---|
| Direct Visits / mo | 7.82M | 0 |
|---|
| User Rating | 4.4 | 3.6 |
|---|
| Supported Platforms | Website | Browser Extension |
|---|

Build working apps, websites, and AI agents by describing them
Describe an idea and get a working app with database, authentication, payments, and hosting already wired up — no server or infrastructure setup.
Generates complete websites with layout, copy, and design, plus built-in SEO tools and custom domain support, ready to publish in one click.
Create 24/7 AI agents that connect to your tools, take real actions, manage data, and automate recurring workflows autonomously.
Connects to Google Calendar, Gmail, Slack, Notion, HubSpot, Salesforce, and more, with API access for anything else you use.

GPT-powered test idea generation and script creation inside your browser
Generate comprehensive test ideas for a page by analyzing its elements with OpenAI language models, then refine them before use.
Convert a selected test idea into a runnable script for Playwright, Selenium or Cypress, choosing your preferred language from JavaScript, TypeScript, Python, C# or Java.
Scan the page under analysis for accessibility problems and get actionable suggestions to make the application more inclusive.
Turn AI-generated test ideas directly into automation and edit them along the way so generated scripts match your intended scenarios.
Powerful full-stack app generation from natural language, but offers more polished UI components and smoother deployment flows.
#1
SpecialistAn AI-native code editor offering deeper multi-file control, but demands more developer experience than zero-code platforms.

Provides a robust cloud development environment with agentic coding, but requires more manual coding oversight than pure no-code.
Converts conversational prompts into hosted applications, though with slightly less advanced UI design customizability.
Generates full-stack web apps directly in the browser, though sometimes less structured for enterprise backend scaling.
SpecialistExcels at generating high-quality front-end user interfaces, but requires additional setup for complete full-stack backend integration.
Free / Open-sourceA minimal, extensible terminal coding agent you can reshape

Design, test, and govern APIs — now with AI agents in the loop

Free / Open-sourceOpen-source control plane for orchestrating coding agents
GenAI-native end-to-end QA agent that plans, writes and heals tests in plain language

Instantly builds fully functional web apps with integrated databases and payments, but features fewer advanced customization controls.

SpecialistTransforms spreadsheets into interactive business apps easily, but lacks the raw code generation flexibility of full-stack AI builders.
Powerful full-stack app generation from natural language, but offers more polished UI components and smoother deployment flows.
SpecialistAn AI-native code editor offering deeper multi-file control, but demands more developer experience than zero-code platforms.
Provides a robust cloud development environment with agentic coding, but requires more manual coding oversight than pure no-code.
Converts conversational prompts into hosted applications, though with slightly less advanced UI design customizability.
Generates full-stack web apps directly in the browser, though sometimes less structured for enterprise backend scaling.
SpecialistExcels at generating high-quality front-end user interfaces, but requires additional setup for complete full-stack backend integration.
Free / Open-sourceA minimal, extensible terminal coding agent you can reshape
Instantly builds fully functional web apps with integrated databases and payments, but features fewer advanced customization controls.
SpecialistTransforms spreadsheets into interactive business apps easily, but lacks the raw code generation flexibility of full-stack AI builders.