tma.js Bot: Mini App Showcase

If you want to understand what a Telegram mini app actually is and how it behaves on a phone, the best step is to open a working example. The tma.js bot exists for exactly that: it shows a mini app built by the team behind the tma.js library.

The profile is short: a showcase of Telegram Mini Apps. There is no entertainment or earning here, but there is a live sample of how the platform works.

Who needs this showcase

The main audience is developers. The app demonstrates a template made with React, TypeScript and Vite using the tma.js library. People open it to see how everything should look and behave.

• New developers. See the template's result before cloning it and running it locally.
• Experienced developers. Compare their own mini app with a reference when something acts strangely.
• Testers. Reproduce Telegram client bugs on a simple example.
• Curious users. Want to see what mini apps are made of 🔧

What a mini app is, in plain words

It is an ordinary website that opens inside Telegram in its own window. It receives data about the user from the messenger: name, language, theme. That means the app needs no separate registration.

That is why mini apps launch instantly and run on any device with Telegram. Nothing has to be installed.

Why this particular example is useful

The demo shows typical elements: Telegram buttons, transitions between screens, reading launch data and following the client theme. These are the basic bricks real projects are built from.

If you are writing your own app, it is a quick way to see how the Back button or launch parameters really work.

Debugging right on the phone

Mini app developers share one pain: you cannot open a browser console on a phone. So the example includes a debug mode. Open the app with the launch parameter set to debug, and a panel for errors and messages appears inside.

The trick is often used to reproduce quirks of different Telegram client versions and find the cause of a failure 🛠

What to do after you look around

1. Open the example and walk through the screens.
2. Read Telegram's documentation on mini apps, which describes every supported feature.
3. Create your own bot with Telegram's official bot creation service and attach your site address to it.
4. Test on different devices and in different themes.

Never type real passwords or payment details into demo apps. This is a teaching sample, not a service to trust with personal information ⚠️

What not to expect

This is not a game, a wallet or a service with gifts and rewards. If you found the bot while hunting for easy income, there is none here.

But for anyone who wants to understand mini app technology, it is a free and clear entry point 🙂