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. TopPDF records 643 monthly visits with -90.6% growth and Freemium pricing.
All-in-one AI PDF tools to edit, convert, compress and translate documents
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | base44.com | toppdf.co |
| Pricing Model | Freemium, Paid, Contact for Pricing | Freemium |
| Monthly Visits | 14.04M (14,039,232) | 643 (643) |
| MoM Traffic Delta | +74.64K (+0.5%) |
| -6.17K (-90.6%) |
| Primary Market & Share | 🇺🇸 United States (32.1%) | 🌐 Global (—) |
|---|
| Direct Visits / mo | 7.82M | 230 |
|---|
| User Rating | 4.4 | 3.9 |
|---|
| 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.
All-in-one AI PDF tools to edit, convert, compress and translate documents
Modify text and images directly inside a PDF and translate document content into many languages while keeping the original page layout intact.
Shrink, merge and split PDFs so large documents are easier to store, share and organise, with compression that aims to preserve visible quality.
Convert PDFs to Word, Excel, PowerPoint and JPG, and convert Word, Excel, PowerPoint, JPG and EPUB back into PDF.
An AI grammar checker that finds grammatical errors and spelling mistakes across multiple languages, plus a paraphrasing tool for fast rewriting.
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.
Free online OCR that turns any image into editable text in seconds
Generates full-stack web apps directly in the browser, though sometimes less structured for enterprise backend scaling.
A free, AI-powered PDF editor for every device
SpecialistExcels at generating high-quality front-end user interfaces, but requires additional setup for complete full-stack backend integration.
AI-powered PDF editor for Windows, Mac and iOS

Free AI-powered PDF editor, converter and reader for every device
AI translation for text, images, documents and speech in 100+ languages

Cross-platform PDF editing with GPT-powered AI for reading, translating, and signing documents
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.
Free online OCR that turns any image into editable text in seconds
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 AI-powered PDF editor, converter and reader for every device
AI translation for text, images, documents and speech in 100+ languages