Telegram Desktop vs Mozilla Thunderbird

Telegram Desktop: what it's good at

Telegram Desktop is a full-featured messaging client with cloud sync across all your devices, very generous file size limits, large group channels and optional end-to-end encrypted secret chats.

• Cloud sync across unlimited devices
• Very large file transfer limits
• Channels and large group support
• Optional end-to-end encrypted secret chats

Mozilla Thunderbird: what it's good at

Thunderbird is a full desktop email client handling unlimited accounts across IMAP, POP and Exchange-compatible services, with an integrated calendar, address book and strong message search. The standard free Outlook alternative.

• Unlimited email accounts
• Integrated calendar and contacts
• Powerful search and message filters
• OpenPGP end-to-end encryption built in

Which should you choose?

Both are free, so the honest answer is that you can install either and decide for yourself — that is the advantage of free software over a paid trial.

Both run on Windows, macOS, Linux. Both are open source, so neither locks you in.

We deliberately do not publish a star rating for either. We have no way to verify a rating that would be honest at scale, and an invented one would be worse than none — so we give you the facts and let you decide.

Frequently asked questions

Is Telegram Desktop better than Mozilla Thunderbird?

Neither is universally better. Telegram Desktop fast cloud-synced messaging with very large file transfers, while Mozilla Thunderbird the leading free desktop email client. The right pick depends on your platform and workflow.

Are both really free?

Telegram Desktop is open source and Mozilla Thunderbird is open source. Both can be downloaded without paying.

Can I install both?

Yes. Since neither costs anything, installing both and comparing them on your own files is usually the fastest way to decide.