Thunderbird 115 Supernova
Open-source desktop email client that unifies your inbox, calendar, and contacts across Windows, Mac, and Linux.
| What is it | Open-source desktop email client that unifies your inbox, calendar, and contacts across Windows, Mac, and Linux. |
|---|---|
| Pricing | Contact for Pricing |
| Free tier | No |
| Platform | Desktop Application |
| Best for | Consolidating work and personal email accounts, Managing schedules with an integrated calendar |
| Domain registered | 2002 |
Data updated Aug. 1, 2026
What does Thunderbird 115 Supernova do?
Thunderbird 115 Supernova is a free, open-source desktop application for managing email, calendars, and contacts. It pulls all your different email accounts into a single, organized interface, so you don't have to switch between browser tabs or separate apps. You can filter messages, tag important items, and set up a unified inbox to see everything at once. It also includes tools for scheduling and managing your contacts, making it a central hub for your digital communication.
The tool stands out for its commitment to user privacy and control. It is funded by donations, not by selling user data or placing ads in your inbox. Being open-source means its code is transparent and can be reviewed by anyone. You can customize its appearance with themes and extend its functionality with a wide range of add-ons, tailoring it to your specific workflow. It works on Windows, macOS, and Linux, offering a consistent experience across operating systems.
Thunderbird 115 Supernova is ideal for anyone tired of juggling multiple webmail interfaces, especially professionals, freelancers, and IT managers who handle several accounts. Its privacy features appeal to users who are cautious about how their data is used. Real-world use includes managing a combined inbox for work and personal life, using the built-in calendar to track appointments, and organizing project communications with tags and filters.
Key features
What makes it stand outWho is Thunderbird 115 Supernova for?
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