Tools

Science

Sci-hub – scientific literature
Library Genesis – books online
scholarcy – an AI-powered article summarizer
Petal – chat with your documents

Writing

Grammarly – English AI Grammatics checking
Overleaf – a latex editor online

AI

ChatGPT –

Drawing

Photopea – an online photoshop
Draw.io / diagrams.net – drawing diagrams online
designs.ai – Create logos, videos, banners, mockups with A.I. in 2 minutes