Routers supporting OpenWrt and DD-WRT (along with stock firmware options) can be broken down by compatibility, along with specific models available on the market.
1. OpenWrt Compatible Routers
OpenWrt is a highly modular, open-source Linux-based operating system. It offers full control over OpenVPN server/client setups, firewall rules, and DNS sinkholes (like AdGuard Home or Unbound).
Native / Pre-installed OpenWrt Routers (Zero-Flashing Required)
- GL.iNet GL-MT6000 (Flint 2): Powerful WiFi 6 home router running stock OpenWrt. Equipped with a quad-core MediaTek CPU capable of pushing higher OpenVPN throughput.
- GL.iNet GL-AXT1000 (Slate AX) & GL-MT3000 (Beryl AX): Compact, high-performance travel routers running OpenWrt out of the box with dedicated OpenVPN management menus.
- Cudy WR3000 / TR3600: Budget-friendly WiFi 6 routers running Cudy’s stock firmware (based on OpenWrt) with open software repository access.
Flashable Consumer Routers (Third-Party OpenWrt Support)
- Netgear Nighthawk R7800 (X4S): Widely considered one of the most stable dual-band Qualcomm-based routers for custom OpenWrt installation.
- Linksys WRT3200ACM / WRT1900ACS: Purpose-built for open-source firmwares with high flash memory capacity.
- Belkin RT1800 / E8450 (AX1800): Affordable MediaTek-based WiFi 6 routers with official OpenWrt community support.
2. DD-WRT Compatible Routers
DD-WRT is a feature-packed alternative firmware designed to unlock advanced networking features, embedded OpenVPN client/server daemons, and detailed bandwidth controls on consumer hardware.
Popular DD-WRT Flashable Models
- ASUS RT-AC68U / RT-AC1900P: One of the most supported legacy Asus models on DD-WRT, offering dedicated hardware acceleration and solid OpenVPN performance.
- Netgear Nighthawk R7000 / R8000: Broadcom-based routers with extensive DD-WRT build support.
- Linksys EA8300 / EA9500: Tri-band routers capable of running DD-WRT for complex multi-device VPN routing.
- TP-Link Archer C7 (v2 to v5): Classic budget router with long-standing DD-WRT community builds.
3. ASUSWRT-Merlin (An Alternative Worth Noting)
If you want the stability of stock firmware with the power of open-source scripts, Asuswrt-Merlin is a custom third-party firmware built specifically for ASUS routers. It keeps the official ASUS interface while adding advanced OpenVPN client policy routing, custom scripts, and performance optimizations.
- Supported Models: ASUS RT-AX88U Pro, RT-AX86U Pro, GT-AX6000, RT-AX58U, and RT-AX3000.
Hardware & Compatibility Comparison
| Router Model | Default / Compatible Firmware | CPU Spec | Typical OpenVPN Speed | Primary Advantage |
| GL.iNet Flint 2 (GL-MT6000) | Native OpenWrt | Quad-Core 2.0 GHz | Up to 150–190 Mbps | OpenWrt out-of-the-box, Dual 2.5G ports |
| ASUS RT-AX86U Pro | Asuswrt / Asuswrt-Merlin | Quad-Core 2.0 GHz | Up to 100–120 Mbps | Excellent VPN Fusion routing policies |
| Netgear Nighthawk R7800 | Flashable to OpenWrt / DD-WRT | Dual-Core 1.7 GHz | Up to 60–80 Mbps | Rock-solid open-source driver stability |
| Linksys WRT3200ACM | Flashable to OpenWrt / DD-WRT | Dual-Core 1.8 GHz | Up to 70–90 Mbps | High flash storage for custom Linux packages |
| GL.iNet Slate AX (GL-AXT1000) | Native OpenWrt | IPQ6018 Quad-Core | Up to 120 Mbps | Portable, dedicated hardware VPN switch |
