Raylib Technologies rTexPacker

by shaheen ismail · January 31, 2026

Raylib Technologies rTexPacker 5.5 macOS

rTexPacker is a powerful tool to package sprites or fonts into an atlas, to improve drawing performance on games. Multiple sprites can be automatically organized (packed) into a single bigger image, as well as multiple text characters of a font. Packaging method can be configured with several option like packaging algorithm, padding and spacing between image.

Multiple properties can be configured for every sprite, like trimming, origin point or even basic colliders.

With rTexPacker you can easely package sprites and export atlas information in multiple formats (XML, JSON, CODE…).

Features
Package sprites and font glyphs into an atlas
Configure packing algorithms and heuristics
Setup sprites spacing, padding and alpha-trimming
Manual sprites positioning on atlas supported
Edit sprites origin, exported with the atlas
Define sprite colliders, exported with atlas data
Font generation options: Size, SDF fonts, fixed font height, monospace
Import custom unicode charset from UTF-8 file
Unicode charset duplicates removed automatically
Atlas visualization options: Zoom, Pan, Background, Fill
Multiple UI styles available, including the new style Genesis
Load/Save portable self-contained .rtp file with ALL atlas data
Load sprites from multiple image formats: .png, .qoi, .tga, .jpg
Load sprites from font files: .ttf, .otf
Load automatically unique font codepoints: .txt, .md, .list
Export atlas descriptor as: text (.rtpa), binary (.rtpb), .json, .xml and code (.h)
Export atlas image as: .png, .qoi, .dds and .raw
Atlas descriptor automatically exported as binary PNG chunk: rTPb
Export missing font codepoints from requested list
Multiple usage examples provided to load: .rtpa, .rtpb, PNG chunk rTPbp and code .h.
Maximum atlas size up to 16384×16384 pixels
Application configuration automatically saved and editable
Command-line support for batch sprites and font packing
Completely portable (single-file, no-dependencies)