What is dev>nulll

A desktop builder that turns a visual flow into a real, running Telegram bot — no code required.

dev>nulll is a desktop app for building Telegram bots visually. You design your bot as a flow of blocks on a canvas, test it instantly, and put it live — without writing code.

How it fits together

  • Log in once. dev>nulll logs into your Telegram account locally and asks @BotFather to create your bot for you. Your session stays encrypted on your machine. See Install & log in.
  • Design the flow. Drag blocks onto the canvas and connect them with arrows. A trigger (like /start) begins the conversation; the arrows say what happens next. See The flow graph.
  • Test for free. Run the bot locally and chat with it right inside the app, or run it on your machine 24/7 while it’s open.
  • Ship it. With the paid plan, deploy your bot to our servers so it runs 24/7 with your computer off. See Deploy & billing.

Free vs Paid

Everything you need to design, test and run a bot is free. The paid plan adds always-on server hosting (24/7 with your PC off), publishing Mini Apps, and payment blocks. Each block’s page shows a Free or badge.

Where to go next