Last reviewed May 29, 2026

Open Source Internet & Communication Software

2 free open source internet & communication programs — rated and reviewed. Browse by platform Windows, macOS, Linux; filter by free or open source.

Browse Open Source Internet & Communication

All Free Open Source Windows Mac Linux

Firefox 135.0.1

Mozilla's Firefox 135.0.1 download delivers enhanced privacy protection with improved tracking blocking and simplified tab management.

Open Source WindowsmacOS

Mozilla Thunderbird

Open-source email client supporting IMAP, SMTP, POP3 protocols with tabbed interface and advanced filtering capabilities.

Open Source WindowsmacOS

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