Zephyr

Zephyr is ranked #4 of 39 in test management software on The Geeks Club. It runs on Linux, macOS, Web, Windows. There is a free plan.

Zephyr plans and pricing

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Name your own price Not published downloadable tool · Windows and Linux listed under platforms · macOS binaries also listed for download aristurtledev.itch.io · 30 Sept 2026

Compared on test management software

Free plan: Yes
Animation type: 2d
Sprite-sheet export: Yes
Game engine integration: Yes
Export formats: PNG, JPG, BMP
Supported platforms: Windows, macOS, Linux

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Zephyr

Purpose: Zephyr is a texture packer and sprite editor with animation support for 2D games.
Sprite workflow: It organizes sprites in a tree, packs them into an atlas, supports per-sprite pivots and hitboxes, defines animations, and exports a texture with JSON metadata.
Atlas packing: It offers Shelf and MaxRects packing algorithms, configurable padding, and a maximum texture size, with the atlas updating in real time.
Sprite hitboxes: Sprites can have Rectangle, Circle, or Polygon hitboxes whose shapes and positions are editable with interactive handles.
Animation: Animations use a frame timeline with per-frame delays and Forward, Reverse, or PingPong playback, and can loop.
Export: Export writes a packed atlas texture and JSON metadata containing sprite positions, pivot points, hitboxes, and animations.
Project files: Projects are saved as one .zephyr file, while source images are referenced by paths relative to that file and need to remain alongside it.
Downloads: The download page lists Windows, macOS, and Linux archives for version 0.2.1, including Windows and Linux ARM64 builds.
Installation: The maker says to extract the platform archive and run the executable, with no installation required.
Source license: The source code is licensed under the MIT License; the artwork and mascot are separately reserved by the copyright holder.
Maker: The project credits Christopher Whitley (AristurtleDev) as its copyright holder and Aristurtle as its itch.io author.
Security: The repository links a GitHub security policy, but the opened page does not provide security or compliance details.
Price from: Free

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Where it ranks on The Geeks Club

Best Test Management Software in 2026#4 of 39
Best Game Animation Software in 2026#16 of 31

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Sources

github.com/aristurtledev/zephyr· checked 30 Sept 2026
aristurtledev.itch.io/zephyr· checked 30 Sept 2026