# cmux 47 Hacker News commenters recommended cmux and 16 criticized it, November 2025 to November 2026. It was recommended in 9 of 13 months; owners who said how long report a median of 0.08 years (5 owners). It meets the Hacker Approved badge rule. **Verdict:** Ghostty-based terminal with project workspaces and notifications, liked for running many AI coding agents at once; critics find it weak over SSH and resource-heavy. ## Why people recommend it - Groups work by project (4 comments): "I like tabbed terminals on macOS grouped by project, saves messing with our daft window management." ([source](https://news.ycombinator.com/item?id=49206559)) "the main reason I love cmux is how can I manage my projects into folders" ([source](https://news.ycombinator.com/item?id=49207984)) "I like tabbed terminals on macOS grouped by project" ([source](https://news.ycombinator.com/item?id=49207243)) - Manages many agent sessions (4 comments): "having workspaces with colors and todos that survive a refresh makes it worth it if you run a bunch of agents at one time" ([source](https://news.ycombinator.com/item?id=50151619)) "Use cmux or conductor to manage multiple instances of Claude Code" ([source](https://news.ycombinator.com/item?id=48445327)) "Cmux was perfect for tons of ClaudeCode/Codex instances." ([source](https://news.ycombinator.com/item?id=48421067)) - Quality-of-life gains over basic terminals (3 comments): "They have many quality of life improvements over the basic terminal." ([source](https://news.ycombinator.com/item?id=49733990)) "a ghostty based terminal that adds some bells and whistles" ([source](https://news.ycombinator.com/item?id=48559650)) "Very happy after a few days switching from ghostty to cmux" ([source](https://news.ycombinator.com/item?id=47214733)) - Good native agent notifications (2 comments): "CMux has good native AI Agent notifications. So it works well in that capacity too." ([source](https://news.ycombinator.com/item?id=49839338)) "Cmux notifications does this too" ([source](https://news.ycombinator.com/item?id=48764496)) ## What people warn about - Tab and pane behavior annoyances (3 comments): "I like it. One thing I'd like to disable is the reordering of tab groups." ([source](https://news.ycombinator.com/item?id=47091352)) "the pane behavior you're describing is my biggest gripe" ([source](https://news.ycombinator.com/item?id=47551843)) "but I didn't like they way it did tabs" ([source](https://news.ycombinator.com/item?id=47549379)) - Bugs and unreliable behavior (3 comments): "its unreliability, high memory and CPU usage and a bunch of bugs" ([source](https://news.ycombinator.com/item?id=47417143)) "I had tons of problem with fonts or scrolling behaviors" ([source](https://news.ycombinator.com/item?id=47752452)) "cmux didn't run well on my Ubuntu setup" ([source](https://news.ycombinator.com/item?id=49989527)) - High memory and CPU use (2 comments): "its unreliability, high memory and CPU usage and a bunch of bugs" ([source](https://news.ycombinator.com/item?id=47417143)) "We fixed many RAM usage issues (latest version is 0.64.22)" ([source](https://news.ycombinator.com/item?id=49207950)) - Not a replacement for tmux (2 comments): "cmux isn't an alternative to tmux, as it can't attach to/detach from sessions" ([source](https://news.ycombinator.com/item?id=47753133)) "It's false advertising to say it's like tmux." ([source](https://news.ycombinator.com/item?id=47753530)) ## Alternatives hackers recommend - [Ghostty](https://hackerapproved.com/p/ghostty.md): 401 recommend - [Termux](https://hackerapproved.com/p/termux.md): 188 recommend - [iTerm2](https://hackerapproved.com/p/iterm2.md): 95 recommend - [Warp terminal](https://hackerapproved.com/p/warp-terminal.md): 84 recommend - [Kitty terminal emulator](https://hackerapproved.com/p/kitty.md): 79 recommend ## Cite as Hacker Approved, "cmux", https://hackerapproved.com/p/cmux/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).