net-merge
Use all your internet connections at once on Windows, macOS, Linux
...Applications using multiple simultaneous connections can benefit from the combined capacity of different networks. It supports TCP and UDP traffic over IPv4 and IPv6 without requiring a proxy, VPN, or external server. Unavailable connections are automatically excluded until connectivity returns. A system tray interface displays network activity and connection statistics. Available for Windows, macOS, Linux, and Android, net-merge provides connection-level load balancing without requiring an account.