HackerReposA FIELD GUIDE TO OPEN SOURCE
ProSponsor the shelf♧ 0
← Back to top all-time
jsdf
pce
C2019–2025
jsdf / pce

pce

Emulates Mac Plus, PC, & Atari ST in the browser using WebAssembly

Web DevelopmentGames & EmulationMobile & Desktop
Explore on GitHubRead Hacker News discussions
3Distinct people
9Mentions
0Explicit recommenders
919GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Emulates Mac Plus, PC, & Atari ST in the browser using WebAssembly

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 12:54:37 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year9 dated mentions

Observed mentions: 2019-04-29 20:02:37 UTC to 2025-04-15 08:34:54 UTC.

0123452019-01-01 00:00:00 UTC to 2020-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments20192020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments20222023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 5 mentions; 0 submissions, 5 comments2025-01-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2025

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20192019-01-01 00:00:00 UTC2020-01-01 00:00:00 UTC101
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC202
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC000
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC000
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC000
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC505
20252025-01-01 00:00:00 UTC2026-01-01 00:00:00 UTC101

What Hacker News says

9 sources
smusamashah·Apr 15, 2025
There aren't many VMs that can run in browser https://copy.sh/v86/ https://webvm.io/ https://bellard.org/jslinux/ https://jamesfriend.com.au/pce-js/ (https://github.com/jsdf/pce) https://www.pcjs.org/ (lots of hardware and OSes) (https://github.com/jeffpar/pcjs) Mac OS https://infinitemac.org/ (https://blog.persistent.info/2023/03/infinitemac-dot-org.htm...) https://jamesfriend.com.au/projects/basiliskii/BasiliskII-wo... https://jamesfriend.com.au/pce-js/pce-js-apps/
In JSLinux
smusamashah·Nov 14, 2024
Some other VMs that run in browser https://copy.sh/v86/ https://bellard.org/jslinux/ https://jamesfriend.com.au/pce-js/ (https://github.com/jsdf/pce) https://www.pcjs.org/ (lots of hardware and OSes) (https://github.com/jeffpar/pcjs) https://infinitemac.org/ (https://blog.persistent.info/2023/03/infinitemac-dot-org.htm...) https://jamesfriend.com.au/projects/basiliskii/BasiliskII-wo... https://jamesfriend.com.au/pce-js/pce-js-apps/
In WebVM 2.0: A complete Linux Desktop Environment in the browser via WebAssembly
smusamashah·Nov 5, 2024
These are VMs running built with JavaScript/WASM allowing you to run an operating system within your browser, all client side. VMs https://copy.sh/v86/ https://webvm.io/ https://bellard.org/jslinux/ https://jamesfriend.com.au/pce-js/ (https://github.com/jsdf/pce) https://www.pcjs.org/ (lots of hardware and OSes) (https://github.com/jeffpar/pcjs) Mac OS https://infinitemac.org/ (https://blog.persistent.info/2023/03/infinitemac-dot-org.htm...) https://jamesfriend.com.au/projects/basiliskii/BasiliskII-wo... https://jamesfriend.com.au/pce-js/pce-js-apps/
In Windows 95 Running in the Browser
smusamashah·Jul 11, 2024
There are a few others VMs https://copy.sh/v86/ https://bellard.org/jslinux/ https://jamesfriend.com.au/pce-js/ (https://github.com/jsdf/pce) https://www.pcjs.org/ (lots of hardware and OSes) (https://github.com/jeffpar/pcjs) Mac OS https://infinitemac.org/ (https://blog.persistent.info/2023/03/infinitemac-dot-org.htm...) https://jamesfriend.com.au/projects/basiliskii/BasiliskII-wo... https://jamesfriend.com.au/pce-js/pce-js-apps/
In WebVM is a server-less virtual Linux environment running client-side
mambodog·May 25, 2020
The author mentions that they didn't have a debugger and couldn't get MacsBug to work inside the emulator. A useful technique here is to use the emulator itself as the debugger: most emulators have features for setting breakpoints and single stepping through emulation and directly reading memory values from the emulated system's memory (by absolute memory address). For example, here is the documentation for 'hardware'-level debugging in the PCE emulator: https://github.com/jsdf/pce/blob/pcejs/doc/monitor.txt One 'nice' thing about working with old architectures like classic Macintosh is that there is basically no abstraction between the software and the hardware, so manipulating the behavior of the emulated hardware becomes a powerful debugging tool.
In Rose-8 on Mac OS 9

MAKE YOURSELF AT HOME

A few shortcuts

/
Search the collection
?
Open this guide
Esc
Close dialogs and navigation

Your saved repositories and interests stay in this browser.