Top 8 C++ terminal-based Projects

FTXUI

39 6,094 8.3 C++

Features: - Functional style. Inspired by [1] and React - Simple and elegant syntax (in my opinion). - Support for UTF8 and fullwidth chars (→ 测试). - No dependencies. - Cross platform. Linux/mac (main target), Windows (experimental thanks to contributors), - WebAssembly. - Keyboard & mouse navigation. Operating systems: - linux emscripten - linux gcc - linux clang - windows msvc - mac clang

Project mention: Functional Terminal User Interface | news.ycombinator.com | 2024-03-30

neo

12 590 0.0 C++

Simulates the digital rain from "The Matrix" (CMatrix clone with 32-bit color and Unicode support) (by st3w)
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
nchat

5 417 8.9 C++

Terminal-based Telegram / WhatsApp client for Linux and macOS

Project mention: Neonmodem: TUI for Lobsters, HN, etc. | news.ycombinator.com | 2024-01-11

WeeChat[0] with Bitlbee[1] supports a metric assload of services, albeit by pretending they're IRC (which does work - I spent years in weechat/irssi with bitlbee talking to various people on disparate services.)
Or if you're just after Telegram/WhatsApp, nchat[2] is ok (I can vouch for the Telegram half only.)
[0] https://weechat.org
[1] https://wiki.bitlbee.org
[2] https://github.com/d99kris/nchat

TMatrix

4 375 2.7 C++

Terminal based replica of the digital rain from The Matrix.
nmail

2 120 8.0 C++

Terminal-based email client for Linux and macOS

Project mention: Outlook is Microsoft's new data collection service | news.ycombinator.com | 2024-01-11

I confirm the issue of delays/freezing of Claws-mail. I really liked the simple UI, but freezing too often, couldn't stand it. I had searched about it, I got some answers that's it's single threaded if I recall well.
Since you mentioned mutt and it's steep learning curve, I recommend you another TUI MTA/mail app. It's nmail (https://github.com/d99kris/nmail). Simple, Pine/Alpine like interface, has great features (for example, saving mails in sqlite - can be used offline). Also the developer is active and friendly, in case you find bugs or have any proposals for enhancements.

AppCUI

3 65 8.3 C++

AppCUI is a cross-platform TUI (Text User Interface / Terminal User Interface) / CUI (Console User Interface) framework designed to allow quick creation of both TUI Application and TUI Games. AppCUI is heavily based on C++20 standards and offers a multitude of widgets such as windows, buttons, checkboxes, radioboxes, comboboxes, listviews, treeviews, tab controls, image previewers, and many more.

Project mention: Resizing console window on windows | /r/cpp | 2023-06-21

Been there done that and in hindsight: while it was a good way to learn some Windows quirks/internals, I now really feel that time would have been better spent learning how to use an existing library (say, https://gdt050579.github.io/AppCUI/, just to name something).

caps-log

1 55 7.6 C++

A small TUI journaling tool. 📖

Project mention: Show HN: Caps-log (Captain's log) – A small TUI journaling tool | news.ycombinator.com | 2024-02-18

WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
asciichart

1 24 4.5 C++

Nice-looking lightweight console ASCII line charts, using C++, no dependencies. (by Civitasv)

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).