Brick Atelier
Pixel editor - Version 0.92
Introduction
Brick Atelier is a tile-based pixel editor. It's a freeware (free to use, not to distribute or sell) program designed for in-house use, but released in case someone finds it useful.
Key features
- 8-bit per channel RGBA color model
- Tile sizes from 6 x 6 to 64 x 64 pixels
- Maximum number of 256 tiles in a tileset
- Mouse wheel zoom from 3x3 to 32x32 size editor pixels
- Simple drawing tools with some special tools like colorize and smudge brush
- Masking and selection tools include rectangle, ellipse, brush and flood fill
- An option to use history brush mode with right mouse button (restores previously saved pixels)
- Tool shelf: options and settings visible only for the current tool
- Tile preview with an option to select repeat amount
- Tile window preview with as many tiles as the window can fit
- Color and palette editor
- Fast light-weight editor designed for tiles
Technical details
Brick Atelier is programmed in object-oriented style C++ using SDL3 library for screen output and it features a custom made GUI. The development began in 2004 and continues from the first release version 0.85 from 2013.
.WST file format
Brick Atelier has a custom file format with 11 byte header and continuous raw RGBA pixel data, 8-bit per channel. In SDL3 this format is SDL_PIXELFORMAT_RGBA8888 if the byte order is SDL_BIG_ENDIAN, else SDL_PIXELFORMAT_ARGB8888.
#pragma pack(1)
struct Stile_File_Header
{
unsigned char id[3]; //this is set to WST
unsigned char version; //only one version exists currently, set to 10
unsigned char bpp_mode; //set to zero, also only one version for bpp mode
unsigned char tile_width; //tile width
unsigned char tile_height; //tile height
uint32_t tile_amt; //amount of tiles in the tileset, 32 bit (4 bytes) integer
};
#pragma pack()
Screenshot
The tool shelf at right is showing related options for the current tool.
What is new in 0.92
This version has a big rewrite for most event loops which removed duplicate source code and prevents double buffer type of bugs from happening. The main feature of this release is Hue-Saturation-Value and Hue-Saturation-Lightness editor in Tile menu, and the engine for them which can be later used to add other types of adjusting.
A bug in file format for .dat and .dlg files required rewriting which breaks backwards compatibility, in this case options, brush pad and palette data. If you are using those files from a previous version the program will crash.
Download
Version 0.92 released 6. February 2026. 64-bit for Windows 11. Without installer, download the zip and extract to an empty folder.