---
title: "GitHub - tomasz-lisowski/swsim: A software SIM card."
url: https://daily.dev/posts/github---tomasz-lisowski-swsim-a-software-sim-card--uatcgxpdp
source_url: https://github.com/tomasz-lisowski/swsim
type: article
source: "Lobsters"
published: 2026-06-27T01:19:23.378Z
updated: 2026-07-01T09:53:11.331Z
tags: ["c", "embedded"]
reading_time: 2
upvotes: 36
comments: 1
language: en
---

> ## Documentation Index
> Fetch the complete documentation index at: https://daily.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# GitHub - tomasz-lisowski/swsim: A software SIM card.

**[Lobsters](https://daily.dev/sources/lobsters)** · 2 min read · 36 upvotes · 1 comments

## Summary

swSIM is an open-source, all-software SIM card simulator that requires no physical SIM hardware. It connects to a PC via PC/SC using the swICC PC/SC reader and can interface with any phone that has a SIM card slot. The project is built with make and gcc, has no extra runtime dependencies, and can be used to interact with a virtual SIM card as if it were a real hardware card.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://github.com/tomasz-lisowski/swsim>

---

Tags: [#c](https://daily.dev/tags/c), [#embedded](https://daily.dev/tags/embedded)

[View this post on daily.dev](https://daily.dev/posts/github---tomasz-lisowski-swsim-a-software-sim-card--uatcgxpdp)