WebPaint98 使い方WebPaint98 Help

WebPaint98 is a pixel-art paint application that runs entirely in your browser, inspired by the way paint software worked on the PC-98 in the early 90s. You draw on a 640×400 indexed-color canvas with a 16-color palette, and you can save in MAG, the standard image format of that era. No install, no sign-up — your work is saved automatically inside your browser.

The screen is made of small draggable windows. The icon bar in the top-left opens and closes them.

From top to bottom, the Pen window contains:

• Brush row — eight brush sizes.
• Tool row (upper) — what you draw with (pen, 1-dot, smudge, clone, soft brush, spray, dither, blur, random walk).
• Stroke row (lower) — how you draw (freehand, line, polyline, rectangle, ellipse, flood fill, …). The two rows combine freely.
• 16 colors / tones — the current color and halftone pattern.
• Current color (top-right) — what you are about to paint with. If you pick a tile or a captured pattern, this cell shows the pattern instead of a flat color.

Right-click a brush or a tone to open a magnified editor where you can edit that shape dot by dot on a 16×16 grid.

• Row 1 (gradation) — nine halftone steps between two endpoint colors. Click any step to make it the current color.
• Small button at the right of row 1 — switches to "pick up endpoints" mode. While it is pressed, clicking the leftmost or rightmost cell stores the current color there and rebuilds the steps in between.
• Row 2 — the 16 solid colors, kept in sync with the Pen window's palette.
• Row 3 — pattern tiles. Selecting one paints with that pattern. Right-click opens the 16×16 magnified editor.
• Button at the far right of row 1 — shows a 16×16 frame over the canvas; click anywhere to capture that part of your picture as a pattern. If a row-3 tile is selected, the capture is stored into that tile.

• View position (leftmost) — shows a frame the size of the current view over the canvas. No dragging needed: it follows the mouse, and a second click moves the view there.
• Zoom — cycles ×2 → ×4 → ×8.
• Four drawing modes — 1 dot, 2×2 dots, line, and flood fill.
• Color / tone swatches — pick colors and tones without leaving the zoomed view. They are the same values the Pen window uses.
• Right-click — picks up the color of that pixel (eyedropper).
• Top-right / bottom-right buttons — toggle full-screen view, and resize the window by dragging.

Click a swatch to adjust its R/G/B values. Change swaps two colors and Gradation interpolates smoothly between two colors — for both, press the button and then click two swatches.

Click a color to mark it with a diagonal stripe: pixels of that color can no longer be painted over. The upper right-hand button turns the whole mask on and off; the lower one inverts the selection.

1. Pick the text color under Color and the shadow color under Shadow.
2. Choose Normal, Shadow, Emphas (bold) or Sha+Emp under Style.
3. Type your text into the Text field.
4. Press Exec, then click on the canvas where you want the text to go.

You can also drag and drop a .MAG or .PNG file onto the canvas to load it. MAG was the standard format of the era, so exported files can be opened by period software.

Press ? in the app to see the full list. The most useful ones are:

WebPaint98 is a homage / tribute to “Multi Paint”, a paint application created by Woody-Rinn (森林林檎) and released by C-Lab in 1992. It is an independent reimplementation that takes that software's window layout, interaction model and key bindings as a reference. It is neither a reproduction of that product nor a redistribution of it.

“Multi Paint” is the product name of its respective rights holders. WebPaint98 is not affiliated with, endorsed by, or licensed by them, and does not use that name as its own.

• Published non-commercially and free of charge (no advertising).
• Some UI assets — window backgrounds, icons, the 8×8 font, and the brush / tone / tile patterns — are extracted and decoded from the original software and used as they are.
• The original software's executable and disk images are not bundled.
• If the rights holder contacts us, we will respond promptly — taking the app down, changing it, or replacing the assets. Please reach us through the contact form on the URARA-works site (at the bottom of that page), or via GitHub Issues.
• Bug reports and feature requests are welcome at the same places.