
The AI workspace where teams and agents get work done together
Base44 records 14,039,232 monthly visits with +0.5% month-over-month growth and Freemium, Paid, Contact for Pricing pricing. Nelly records 1,641 monthly visits with -48.7% growth and Free, Paid pricing.
A complete, no-code AI agent platform you build, run and share locally
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | base44.com | nelly.is |
| Pricing Model | Freemium, Paid, Contact for Pricing | Free, Paid |
| Monthly Visits | 14.04M (14,039,232) | 1.64K (1,641) |
| MoM Traffic Delta | +74.64K (+0.5%) | -1.56K (-48.7%) |
| Primary Market & Share | 🇺🇸 United States (32.1%) | 🇩🇪 Germany (95.2%) |
| Direct Visits / mo | 7.82M | 655 |
| User Rating | 4.4 | 4.2 |
| Supported Platforms | Website | Website |

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.
A complete, no-code AI agent platform you build, run and share locally
Create custom agents by describing their job in plain language with headings and lists; no coding or special syntax required.
Give agents browser and database tools, and split complex work into specialised sub-agents to form a coordinated team.
Hold natural conversations in organised threads, group agents into departments by drag-and-drop, and review detailed activity logs with browser screenshots.
Agents and their data stay on your computer while only conversation context is sent to the model provider and not stored by Nelly.

The AI workspace where teams and agents get work done together
Powerful full-stack app generation from natural language, but offers more polished UI components and smoother deployment flows.
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.
SpecialistAn AI-native code editor offering deeper multi-file control, but demands more developer experience than zero-code platforms.
Google's agent-first development platform for building and shipping software with AI agents
Google's agent-first development platform for building and shipping software with AI agents

Provides a robust cloud development environment with agentic coding, but requires more manual coding oversight than pure no-code.
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.
Converts conversational prompts into hosted applications, though with slightly less advanced UI design customizability.
Free / Open-sourceA free, open-source personal AI agent that learns your projects and works across every messaging app.
Free / Open-sourceA free, open-source personal AI agent that learns your projects and works across every messaging app.
Generates full-stack web apps directly in the browser, though sometimes less structured for enterprise backend scaling.
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.
SpecialistExcels at generating high-quality front-end user interfaces, but requires additional setup for complete full-stack backend integration.
No-code builder for custom AI agents and workflows
No-code builder for custom AI agents and workflows
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.
Instantly builds fully functional web apps with integrated databases and payments, but features fewer advanced customization controls.