Apple Donates MacPaint Source Code to Computer History Museum - MacRumors
Skip to Content

Apple Donates MacPaint Source Code to Computer History Museum

025429 brochure4a 300

Businessweek reports that Apple has donated the original source code for MacPaint to the Computer History Museum.

Released in 1984 with the Mac, it is fondly remembered not only by those who used it, but also by computer scientists for numerous first-of-a-kind innovations. Those who spend a lot of time using Adobe Photoshop constantly use such features as the lasso tool for selecting non-rectangular shapes, and the paint bucket for filling closed areas with a pattern, and later, color. Both first appeared in MacPaint. The program was unique at the time for its ability to create graphics that could then be used in other applications.

MacPaint was part of the original Macintosh launch back in 1984 and was featured prominently in its advertising. The screenshot above was from an 18 page advertising brochure that was circulated with Time and Newsweek in December, 1983. The ad introduced the concept of using a mouse to click on the screen, and MacPaint was featured as an example application utilize the windows/mouse interface.

The MacPaint source code is now available and clocks in at 5,822 lines of Pascal and 3,583 lines of 68000 assembly. Apple's early QuickDraw library was also released as 17,101 lines of 68000 assembly.

Popular Stories

Apple Event Logo

Apple's Next Era Begins September 1

Thursday May 7, 2026 10:36 am PDT by
Apple recently announced that Tim Cook will be stepping down as CEO later this year, after 15 years of leading the company. Effective September 1, Apple's hardware engineering chief John Ternus will become the company's next CEO, while Cook will become executive chairman of Apple's board of directors. In his new role, Apple said Cook will assist with "certain aspects" of the company,...
Four iPhone 18 Pro Colors Mock Feature

iPhone 18 Pro Launching in September With These 10 New Features

Saturday May 9, 2026 6:03 am PDT by
While the iPhone 18 Pro and iPhone 18 Pro Max are not launching until September, there are already plenty of rumors about the devices. It was initially reported that the iPhone 18 Pro models would have fully under-screen Face ID, with only a front camera visible in the top-left corner of the screen. However, the latest rumors indicate that only one Face ID component will be moved under the...
General Apps Reddit Feature

Reddit Starts Blocking Mobile Website, Pushing Users to App Instead

Monday May 11, 2026 6:10 am PDT by
Social network Reddit recently began blocking mobile visitors to its website while pushing them to download the official Reddit app, and it's fair to say that the move is not going down well with users. If you visit reddit.com on your iPhone today, you may see a new popup that can't be dismissed, asking you to "get the app to keep using Reddit." A Reddit spokesperson told Ars Technica...