Astra
Two release trains, zero new features — Astra has been in pure maintenance mode since spring.
A side-by-side editorial comparison of Aseprite and Oxygen — release velocity, themes, recent moves, and the top alternatives to consider.
Steady 1.3 maintenance, with the Lua API quietly becoming Aseprite's extension point.
Aseprite is deep into a long 1.3.x maintenance line: v1.3.18 landed in July after three betas stretching back to February, followed within the hour by a 1.3.18.1 crash-fix patch and, two weeks later, a one-line 1.3.18.2. The substantive work in 1.3.18 splits three ways — performance (undo/redo now keeps doc::Objects in memory), discoverability (Preferences search, configurable tooltip delay, clearer layer groups in the timeline), and Lua API growth (custom file formats for load and save, eyedropper in app.useTool). By volume, bug fixes dominate: tilemap selection, zoom distortion, crash paths.
Oxygen spent its 6.2 cycle turning the builder into something an AI agent can drive.
Oxygen ships on long beta trains: 6.1 ran four betas plus an RC before landing, and 6.2 is now three betas deep. The defining change in 6.2 is an agent interface — an external AI agent can create and edit pages, templates, headers and footers, Components, selectors, CSS variables, dynamic data, interactions, animations, and site settings. Beta 3 adds the builder's first non-English UI, ending an English-only history. Everything else in the current window is regression cleanup.
Aseprite is deep into a long 1.3.x maintenance line: v1.3.18 landed in July after three betas stretching back to February, followed within the hour by a 1.3.18.1 crash-fix patch and, two weeks later, a one-line 1.3.18.2. The substantive work in 1.3.18 splits three ways — performance (undo/redo now keeps doc::Objects in memory), discoverability (Preferences search, configurable tooltip delay, clearer layer groups in the timeline), and Lua API growth (custom file formats for load and save, eyedropper in app.useTool). By volume, bug fixes dominate: tilemap selection, zoom distortion, crash paths.
The cadence is beta → final → patch, with identical fixes backported across the 1.3.17.x and 1.3.18.x branches — several entries here are branch twins carrying the same two or three fixes. The one directional thread is extensibility: the Lua API version moved 39 → 40 and now lets third-party code register sprite load/save formats the core used to own exclusively. Separately, "refactors needed for new layer types" appears across two releases as internal groundwork with no user-visible effect yet.
Expect the 1.3.18.x patch train to keep absorbing crash reports at this pace, with the next feature release cashing in the new-layer-type refactors that have been landing quietly.
Oxygen ships on long beta trains: 6.1 ran four betas plus an RC before landing, and 6.2 is now three betas deep. The defining change in 6.2 is an agent interface — an external AI agent can create and edit pages, templates, headers and footers, Components, selectors, CSS variables, dynamic data, interactions, animations, and site settings. Beta 3 adds the builder's first non-English UI, ending an English-only history. Everything else in the current window is regression cleanup.
The 6.1 cycle was breadth work aimed at the person in the canvas — multi-element selection, variable fonts, conditional classes, PHP 8.4 support. 6.2 changes the axis: rather than adding controls for a human to click, Oxygen is exposing the builder's object model so something else can write to it. Localization in Beta 3 pushes the same way, widening who can drive the builder rather than what it can draw. The cadence stays slow and fix-heavy, so the new surface will likely firm up before it grows.
Expect 6.2 to reach GA after another beta or RC dominated by agent-edit regressions, with the sibling Breakdance elements that ship alongside Oxygen 6 picking up the same agent-addressable surface.
Other Design products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Aseprite or Oxygen.
Two release trains, zero new features — Astra has been in pure maintenance mode since spring.
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See all Aseprite alternatives → · See all Oxygen alternatives →
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
They serve adjacent needs but don't currently overlap on shipped themes. Oxygen is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Oxygen is currently shipping more aggressively (velocity 6.3 vs 5.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Design products to evaluate alongside.
Top Aseprite alternatives in Design are ranked by recent ship velocity. Browse the "Aseprite alternatives" section above for the current picks, or visit /alternatives/aseprite for the full list with editorial commentary on each.
Top Oxygen alternatives in Design are ranked by recent ship velocity. Browse the "Oxygen alternatives" section above for the current picks, or visit /alternatives/oxygen for the full list with editorial commentary on each.