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Mosh
Raised as a usability problem by 17 people on Hacker News over 13 years (2013–2025), in 12 threads.
No issue was raised by at least 3 people in 3 threads this year.
No issue was raised by at least 3 people in 3 threads in the last 5 years.
Every issue, all time, most people first
Typing latency varies as predictions suddenly switch on and offUnreviewed
20132026- Predictive typing distorts interactive ncurses apps until the server round-trip corrects them2025-08-28
- Typing is very slow when connected to far-away servers2021-08-12
- Can't scroll back, and latency reorders keystrokes so typing goes wrong2014-09-01
Unreviewed issues were grouped by machine: Claude Haiku labelled each comment as a usability complaint, named what it's about and summed up the problem in a line, and a small model grouped similar problems. Nobody has checked them by hand. Expect mistakes.
The newest 18 complaints
- Rendering glitches and misaligned text from client-server mismatches make the terminal hard to use2025-08-28
- Predictive typing distorts interactive ncurses apps until the server round-trip corrects them2025-08-28
- High latency makes the local terminal drift out of sync with the remote session2022-11-24
- Scrolling is laggy or wrong because Mosh scrolls the remote buffer instead of locally2022-05-24
- Scrolling through a file in a large mosh terminal is painfully slow2022-05-24
- Scrolling back through output is hard, since Mosh's default mode can corrupt output2021-08-12
- Typing is very slow when connected to far-away servers2021-08-12
- Breaks terminal scrollback, so the user can't scroll back through earlier output2020-04-08
- Local scroll only reaches the local window height, so earlier remote output can't be scrolled back to2019-11-26
- On Android the app waits to re-establish TCP and TLS, so the experience is noticeably slow2017-05-05
- Mosh was not helpful on a bad mobile network, so the user switched tools2016-04-26
- Requires screen for scrollback, causing awkward nested session states and detaching2016-04-26
- Fullscreen terminals are extremely slow and borderline unusable on large displays2016-04-02
- Scrolling requires manually toggling a mode and lags during screen redraws2015-01-22
- Can't scroll back, and latency reorders keystrokes so typing goes wrong2014-09-01
- Feels laggy in vim and tmux, slower than plain SSH2014-09-01
- Mispredicted typing causes jarring jerkiness and visual artifacts, especially after pressing enter2013-01-06
- Typing latency feels jarringly variable as predictions suddenly switch on and off2013-01-06