TToolora

Thunderbird

Open source

Open-source desktop email from Mozilla

Best for email · desktop · open-source

Toolora score88/100

Our own editorial score, not public reviews.

Strengths

  • IMAP and POP accounts
  • Local mail archive

Skip if

you need contracts, SSO, or a named vendor SLA

Thunderbird is a free desktop mail client. Connect IMAP accounts, keep a local archive, and add a calendar without putting every inbox in a browser tab.

Key features

  • IMAP and POP accounts
  • Local mail archive
  • Calendar and address book
  • Add-ons and message filters

Why it is on Toolora

We list Thunderbird for people who need email · desktop · open-source. Skip it if you need contracts, SSO, or a named vendor SLA.

Closest alternatives on Toolora: Firefox, Proton, Gmail.

Try instead

Compare
Free

Firefox

Independent browser from Mozilla

Productivity
Toolora score88

Also covers mozilla.

Free

Proton

Our pick

Encrypted email, calendar, VPN, and drive

Productivity
Toolora score90

Also covers email.

Free tier

Gmail

Our pick

Searchable email with labels, spam filters, and Drive

Productivity
Toolora score92

Also covers email.

Thunderbird

Free / open source

Get it here