When comparing Aseprite vs Cosmigo Pro Motion NG, the Slant community recommends Aseprite for most people. In the question“What are the best pixel art / sprite editors?” Aseprite is ranked 2nd while Cosmigo Pro Motion NG is ranked 8th. The most important reason people chose Aseprite is:
You can change the playback speed of the loop and the speed of each individual frame. There are three playback modes: forward, reverse, and ping-pong. Onion Skin mode is included to speed up the animation process and to allow for tagging the timeline to help keep animations organized. There is also a live preview so you can always see the end result. Onion Skin mode will overlay previous and next frames over the canvas so you can use them as references when drawing. For Onion Skin mode, you can adjust items like range, opacity, and tint, whether the onion frames are in front of or behind the canvas, etc. You can tag different parts of the timeline when, for example, you need different animations for the same character. You can then loop those tagged sections individually.
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Pro Good selection of tools for animation
You can change the playback speed of the loop and the speed of each individual frame. There are three playback modes: forward, reverse, and ping-pong. Onion Skin mode is included to speed up the animation process and to allow for tagging the timeline to help keep animations organized. There is also a live preview so you can always see the end result.
Onion Skin mode will overlay previous and next frames over the canvas so you can use them as references when drawing. For Onion Skin mode, you can adjust items like range, opacity, and tint, whether the onion frames are in front of or behind the canvas, etc.
You can tag different parts of the timeline when, for example, you need different animations for the same character. You can then loop those tagged sections individually.
Aseprite is available on OS X, Windows, and Linux with source code available on GitHub (shared source license).
Pro Easy to use
Getting started with the program is straightforward. It's laid out intuitively: the main workspace in the middle, color selection on the left, tool section on the right, and animation timeline at the bottom.
All tools and the vast majority of functions have keyboard shortcuts, allowing for results to be obtained quickly.
Aseprite is a very focused program: it's not filled with icons, there's no excess functionality, and dialog boxes generally only have a couple of options so you're never overwhelmed and it's easier to learn.
Pro Responsive developer
Always in touch with the community and approachable via Twitter.
Pro Free and paid versions available
Aseprite is free if you compile it yourself. Its maintainers also offer a security-signed package with a technical support license for a one time fee of $14.99.
Pro Very intuitive thus easy for complete beginners
The interface invites you to be creative, and since it's pixel art you are creating, this adds to the feeling of being in the right environment. Everything seems to have its natural place and thereby could make beginners feel right at home.
Pro Awesome tools
Tools are good, easy to use.
Pro Pixel perfect mode
It makes drawing lines and shapes less jaggy by default.
Pro Beautiful interface
Aseprite has a beautiful pixel-art interface that makes it a pleasure to use.
Pro Good tilemap editing tools
Tilemap can be drawn with tools that automatically keep your palette of tiles consistent. Both free painting and tile-placing modes work in the same workspace allowing you to easily switch between workflows.
Pro Supports palette indexing
You can separate the color information out of the image file into a separate palette file.
Pro Supports custom grids
The user can create normal rastered or custom grids with custom shapes, or they can just mix up all they want.
Pro Onion Skinning support
You can use Onion Skinning to see surrounding frames to help create animations.
Pro Marquee select allows you to see your results
Pro Motion gives you a direct feel for the pixels: how they will lay down when pressed as soon as you've finished marquee selecting. It's thus very easy to drag around to get a perfect look, moving it a few pixels here or there.
Related to this then is the way you can play with single-color mode. You can drag-click the 'paste' to create different colored silhouettes of the selection. Even while zoomed in, you can see the exact pixels as they would be rendered if set down where your mouse is.
Pro Includes almost all original DPaint and PPaint functionality
Oldschool pixel artists will find all their beloved functions from the Amiga Pixel Art Programs, DPaint and PPaint. Such functions include smear, paint, color cycle, mirror, kaleidoscope, tint, smooth, fill with dither or random dither, fill with spherical color fade, auto outline, and tons more.
Most keyboard shortcuts are the same as those of DPaint, so you immediately feel at home with ProMotion. You can of course re-define them as you wish.
Pro Transparent 'color' behaves like any other color on the canvas
If you want to create a simple 'masking', it's very simple. Most normal paint programs have transparency, but what they don't let you do is treat transparency as if it were another pixel on the screen.
Typically, you are required to set up layers, and use eraser to block/unblock areas to get the effect you want. This is both long-winded and uncomfortable.
Pro Free limited functionality version
There is a free version available for Pro Motion that has a limited feature set but is a good way to check out the software. This is also a good choice for those who do not need many features but want to use a simple pixel editor. The limitations of the free version can be seen here.
Pro Revamped Layer System (NG) support
Pro Motion supports the regular Layer System you would expect from Photoshop, but with the added support of animation layers (which have frames) and static image layers (for templates, backgrounds, or other static elements).
Pro Background color is accessible by right-click
Pro Motion gives you instant right-click access to the background color. This is useful in cases where pixels are very close to each other and you are not able to easily get the balance of each color right.
Pro Offers drawing masks and brush capture masks
You can easily create a mask to protect part of the image against modification, or to exclude part of the image from the brush capture action. The mask is created either by selecting the colors (from the palette or directly from the image), or by drawing it using any of the available tools (pencil, line, circle, box, etc.) Once defined, you can freeze the mask or let the program update it, based on the drawing colors.
Pro Brush containers useful for animations
The user can copy any part of the frame or even whole animations and use them as brushes or just store them for easy re-use later.
Pro Gradient Tool
There's a Gradient Tool with several modes of dithering.
Pro Supports layers
Con Not FLOSS anymore
The license was changed to a shared license, that does not allow redistribution of the source code. While older versions should still be FLOSS, the newest versions are not.
Con Pixel-styled interface can be jarring
Aseprite uses low-resolution window frames and fonts. Opinions vary on whether this sets the mood or gets in the way.
Con No tilemap support yet
A tilemap editor is on the roadmap for version 1.6.
Con No file saving on free version
The free version doesn't let you save your files.
Con Text tool could be better
You can't change text and its font or size after you've inserted it. You have to re-insert text every time you wish to make an edit.
Con Pro version and upgrades come at a price
The Pro version of Cosmigo Pro Motion costs $39 and includes a number of features that aren't available in the limited free version.
If you have an existing Pro Motion license, it costs $19 to upgrade to the newest version or you stick with the feature limited free edition.
Con Supports Windows only
Pro Motion only supports Windows, but you can easily run it on macOS and Linux using Wine, PlayOnMac, PlayOnLinux etc.