Top 12 C Serial Projects

WindTerm

1 27 31,224 3.1 C

A professional cross-platform SSH/Sftp/Shell/Telnet/Tmux/Serial terminal.
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nut

2 195 4,083 10.0 C

The Network UPS Tools repository. UPS management protocol Informational RFC 9271 published by IETF at https://www.rfc-editor.org/info/rfc9271 Please star NUT on GitHub, this helps with sponsorships!

Project mention: Network UPS Tools | news.ycombinator.com | 2026-01-12
esp-link

3 18 2,985 0.0 C

esp8266 wifi-serial bridge, outbound TCP, and arduino/AVR/LPC/NXP programmer
tio

4 7 2,980 8.2 C

A serial device I/O tool
gba-remote-play

5 13 465 1.8 C

📡 Stream Raspberry Pi games to a GBA via Link Cable.
microshell

6 2 348 4.4 C

MicroShell is a lightweight pure C implementation of shell emulator dedicated for embedded bare-metal systems.
EmonESP

7 1 169 2.4 C

ESP8266 WIFI serial to emoncms link
wi-se-sw

8 2 40 0.0 C

Wi-Se - Wi-Fi Remote Serial/UART Terminal for ESP8266
amouse

9 1 29 8.1 C

Anachro Mouse, a usb to serial mouse adapter.
i2cu

10 2 5 2.5 C

A little hardware probe on a TTGO
ComScope

11 1 2 8.4 C

Serial port terminal for embedded development boards on Linux

Project mention: Introducing ComScope: A Fast & Lightweight Serial Terminal for Embedded Linux Developers | dev.to | 2026-03-18

That's why I created ComScope—a fast, lightweight, and incredibly intuitive serial port terminal built specifically for embedded development boards on Linux.
comtest

12 1 0 6.9 C

NanoPi Fire 2A Serial port communication in C for QtE-demo

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).

C Serial discussion

C Serial related posts

Show HN: WindTerm – Introducing a better Tmux experience

1 project | news.ycombinator.com | 11 Mar 2025
WindTerm SSH Client has Ransomware?

1 project | /r/PowerShell | 13 Sep 2023
Passive esp8266 project when you have an extra one laying around?

1 project | /r/esp8266 | 21 May 2023
Need to send an I2S audio stream from an MEMS Microphone to Mobile app using ESP32 Bluetooth Realtime. Need some advice!

1 project | /r/esp32 | 20 May 2023
Fun with Kermit and Zmodem over SSH

5 projects | news.ycombinator.com | 25 Apr 2023
ESP8266 as an USB-OTG serial port?

2 projects | /r/esp8266 | 4 Apr 2023
Serial over Ethernet solutions?

1 project | /r/ElectricalEngineering | 23 Feb 2023
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Index

What are some of the best open-source Serial projects in C? This list will help you:

#	Project	Stars
1	WindTerm	31,224
2	nut	4,083
3	esp-link	2,985
4	tio	2,980
5	gba-remote-play	465
6	microshell	348
7	EmonESP	169
8	wi-se-sw	40
9	amouse	29
10	i2cu	5
11	ComScope	2
12	comtest	0

C Serial

Top 12 C Serial Projects

C Serial discussion

C Serial related posts

Show HN: WindTerm – Introducing a better Tmux experience

WindTerm SSH Client has Ransomware?

Passive esp8266 project when you have an extra one laying around?

Need to send an I2S audio stream from an MEMS Microphone to Mobile app using ESP32 Bluetooth Realtime. Need some advice!

Fun with Kermit and Zmodem over SSH

ESP8266 as an USB-OTG serial port?

Serial over Ethernet solutions?

Index

Did you know that C is the 6th most popular programming language based on number of references?

Did you know that C is
the 6th most popular programming language
based on number of references?