Телеграм Онлайн is an independent knowledge base covering the features and settings of Telegram. Its site organizes practical guides that explain how to use the messaging app’s tools, with a focus on recent updates and step-by-step information for users and developers. Topics include Telegram’s security notices about unofficial clients, document scanning on iOS, motion photos, and editing GIFs and stickers.

The guides also cover creating stickers from photos, adding captions to GIFs, and using new polling options such as media attachments, location sharing, and voter counts. Other articles explain Telegram’s AI-powered text editor, date and time formatting in messages, and signing in to websites and apps with a Telegram account. The knowledge base discusses bot development as well, including updates that let bots create and manage other bots through the Telegram Bot API.

Content is presented in Russian, with a multilingual site interface offering numerous language choices, including English. Telеграм Онлайн is explicitly described as an unofficial resource, not as an official Telegram service