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. CodeMoss records 0 monthly visits with — growth and Freemium pricing.

AI programming assistant that enhances your browser with code help and optimization
| 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 | 4.1 |
|---|
| 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.

AI programming assistant that enhances your browser with code help and optimization
Open an assistant panel on any page to ask programming questions and get explanations without switching to a separate site or app.
Select code on a page and let the assistant rewrite, tidy up or clarify it so the snippet is cleaner and easier to read.
Request a review of a snippet and receive concrete suggestions for improving structure, readability or efficiency.
Pairs with web browsing so results and technical pages are easier to interpret when you are researching a fix or a new API.
Powerful full-stack app generation from natural language, but offers more polished UI components and smoother deployment flows.
#1
The AI coding agent for building ambitious software

Provides a robust cloud development environment with agentic coding, but requires more manual coding oversight than pure no-code.

Free / Open-sourceWrite code with precision, hand bigger jobs to agents, and keep working from anywhere

Converts conversational prompts into hosted applications, though with slightly less advanced UI design customizability.
An agentic coding platform that ships real software
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.

The coding agent that learns your coding taste
Free / Open-sourceA minimal, extensible terminal coding agent you can reshape

AI code review, PR triage, and security monitoring for fast-moving teams

Instantly builds fully functional web apps with integrated databases and payments, but features fewer advanced customization controls.
Powerful full-stack app generation from natural language, but offers more polished UI components and smoother deployment flows.
The AI coding agent for building ambitious software
Provides a robust cloud development environment with agentic coding, but requires more manual coding oversight than pure no-code.
Free / Open-sourceWrite code with precision, hand bigger jobs to agents, and keep working from anywhere
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.
The coding agent that learns your coding taste
Free / Open-sourceA minimal, extensible terminal coding agent you can reshape
AI code review, PR triage, and security monitoring for fast-moving teams
Instantly builds fully functional web apps with integrated databases and payments, but features fewer advanced customization controls.