Mini Apps

Design a Telegram Mini App visually and send data back to your bot.

A Mini App is a web screen that opens inside Telegram. dev>nulll includes a visual Mini App designer — build a screen from components and preview it as it’ll look in Telegram.

Designing — Free

In the Mini App tab of a bot, drag components (headings, text, images, buttons, inputs, toggles, lists, cards) onto a phone preview and edit their properties. Design and preview are free.

Sending data back to the bot

A Mini App can send data to your bot via Telegram’s Telegram.WebApp.sendData. Catch it in the flow with the Mini App data trigger and save it to a variable — then continue the conversation as usual.

Mini App data  →  save_var: order
Send "Got your order: {{var.order}}"

Publishing — Paid

Putting a Mini App live (hosting it on HTTPS so a button can open it in Telegram) is part of the paid plan.