Telegram
Telegram FZ-LLC
Screenshots
About Telegram
You need to send a 1.5 GB video or a zip folder to a colleague, but standard chat apps reject anything over a few megabytes or force your phone to stay online to sync desktop sessions. Telegram handles those transfers directly through its cloud infrastructure without tethering your mobile device.
Messages and media sync independently across phones, tablets, and computers. Standard chats use cloud encryption built on 256-bit AES, 2048-bit RSA, and Diffie-Hellman keys, letting you wipe any message from both sides at any moment. Large groups can expand up to 200,000 members, and automated bots can process routine tasks inside conversations.
If you need end-to-end encryption where server operators cannot access your data, standard chats will not suffice. You have to open a Secret Chat manually, which enables end-to-end encryption and automatic self-destruction for text, photos, and files. Note also that installing the client requires granting broad device permissions, including full access to your contacts, call records, and precise GPS location.
Built-in editors let you adjust photos and videos before sending, alongside custom themes, animated stickers, and an open GIF platform. Developers can audit the client source code through verifiable builds or construct automated tools using the free API.
- Cloud SyncingAccess your conversations on multiple phones or computers without keeping your primary mobile device connected.
- Heavy File TransfersSend videos, archives, and documents up to 2 GB each without taking up storage space on your phone.
- Secret ChatsEnable end-to-end encryption with self-destructing timers for messages, media, and attachments.
- Massive CommunitiesBuild public or private group chats containing up to 200,000 participants and automated bots.
Permissions
- Identityfind accounts on the device
- Identityadd or remove accounts
- Identityread your own contact card
- Contactsfind accounts on the device
- Contactsread your contacts
- Contactsmodify your contacts
- Locationapproximate location (network-based)
- Locationprecise location (GPS and network-based)
- Phonedirectly call phone numbers
- Phoneread call log
- Phoneread phone status and identity
- Photos/Media/Filesread the contents of your USB storage
- Photos/Media/Filesmodify or delete the contents of your USB storage
- Storageread the contents of your USB storage
- Storagemodify or delete the contents of your USB storage
- Cameratake pictures and videos
- Microphonerecord audio
- Wi-Fi connection informationview Wi-Fi connections
- Device ID & call informationread phone status and identity
- Otherview network connections
- Othercreate accounts and set passwords
- Otherpair with Bluetooth devices
- Otherfull network access
- Otherchange your audio settings
- Otherread sync settings
- Otherrun at startup
- Otherdraw over other apps
- Othercontrol vibration
- Otherprevent device from sleeping
- Othertoggle sync on and off
- Otherinstall shortcuts
- Otheruninstall shortcuts
- Otherread Google service configuration
Common questions
Is Telegram safe to use for private messages?
Standard Telegram chats use cloud encryption with AES-256, RSA-2048, and Diffie–Hellman keys. For full end-to-end encryption where only you and the recipient can read content, you must use Secret Chats.
Can I use Telegram on desktop without my phone?
Yes. Telegram runs standalone apps across devices, so your computer app works even when your phone is turned off or offline.
What is the maximum file size you can send on Telegram?
You can share individual files of any format, including ZIP, MP3, and DOCX, up to 2 GB per file.