This Web page shows applications for Mac OS X developed by myself. All of them are free software. See the copyright document included in each package.
An image viewer. ToyViewer can display and save images in various formats. You can also apply various operations to images, such as clipping, flipping, rotation, enlarge, shrink, etc. ToyViewer provides many effects such as color tuning, enhancement, blur, mosaic, contour extraction, etc. The function to see images in a folder one after another in full screen is excellent, and it would useful as a comic viewer. Many new features are added into ToyViewer 5.00. For example, ToyViewer can display SVG images, can show animation of TIFF stacks, can list the information of Exif, and so on.
A touch typing tutor.
It provides various kinds of lessons. The original lessons are from "typist" by D. J. Penney, 1991.
IcoMaker can display and can make icon files with suffix "ico", which are used mainly on Windows. IcoMaker is also useful to make "favicon.ico" of your Web Pages.
IcoMaker is not a "Bitmap Editor". IcoMaker makes an ICO file assembling small images which are made by other tools.
RotSquare is a puzzle like well-known 15-puzzle. However, pieces move as if the game board is a torus.
RotSquare is originally developed on NeXTstep by Torikov. This is the port on Max OS X.
A software to make a presentation. ToyProjector displays each file in a list of plain text, RTF, HTML, image, and movie files on full-screen. ToyProjector supports both multi-screen and display mirroring.
You can reuse existing documents to make a presentation. As you can specify any background images you like, you can make your presentation so cool. A sample document is also ready.