Opera vs SeaMonkey
Detailed comparison of Opera and SeaMonkey — features, platforms, license, and ratings.
Opera
Fast, feature-rich web browser with built-in VPN, ad blocker, and synchronization across devices.
Download Free
SeaMonkey
All-in-one communication suite with browser, email client, and web development tools built on Mozilla's Gecko engine.
Download FreeSide-by-Side Comparison
| Feature | Opera | SeaMonkey |
|---|---|---|
| Version | 129.0.5823.15 | 2.53.23 |
| License | Free | Free |
| Platforms | Windows, Linux, Android | Windows, Linux, macOS |
| Rating | 4.5/5 (453) | 4.1/5 (267) |
| Category | Browsers | Browsers |
| Size | N/A | N/A |
About Opera
Fast, feature-rich web browser with built-in VPN, ad blocker, and synchronization across devices.
Read full Opera review →About SeaMonkey
All-in-one communication suite with browser, email client, and web development tools built on Mozilla's Gecko engine.
Read full SeaMonkey review →Which Should You Choose?
Both Opera and SeaMonkey are excellent choices for browsers. Choose Opera if you prioritize free, lightweight, cross-platform, windows, linux. Choose SeaMonkey if you prefer free, open-source, lightweight, windows, linux.