Spline Alternatives

Sketch

Sketch is a design toolkit built to help you create your best work — from your earliest ideas, through to final artwork.

Features:

• UI Design
• Live Preview
• Bitmap Editing
• Cloud sync
• Drawing
• UI Design
• Integration with InVision
• Screen Mirroring
• Symbols
• Vector Drawing

Gravit Designer

A cross-platform vector graphics tool, runs as desktop application and in-browser too.

Features:

• Ad-free
• Portable
• Works Offline
• Vector Drawing
• Asset Pipeline
• Browser based
• Built-in Color picker
• Cloud sync
• Embedded tutorials
• Global palette
• Master Design
• Persistent Linux
• Resource export
• SVG Editors
• Unlimited Canvas Area
• User interface
• Vectorize raster images
• Web fonts
• Website wireframing

Figma

Figma is the collaborative interface design tool. Keep the team focused and on the same page with real-time communication and collaboration featuring commercial quality...

Features:

• Prototyping
• Import from Sketch
• Real time collaboration
• Modern JavaScript
• Team Collaboration
• Automatic conversion to multiple formats
• Cloud sync
• UI Design
• Native application
• Real time collaboration
• Responsive design
• Smart auto-align
• Smooth
• Typekit integration
• Usability
• Wireframing

Adobe XD

Adobe XD (Experience Design) is a vector-based tool developed and published by Adobe Inc for designing and prototyping user experience for web and mobile apps. ...

Features:

• Prototyping
• Interactive Mockups
• Interactive Prototyping
• Responsive design
• UX Design
• Animation
• Extensible by Plugins/Extensions
• Live Preview
• Object animation
• Repeat grid function
• Share design specs

Paint 3D

Paint 3D is Microsoft's totally rebuilt and enhanced version of http://alternativeto .

Features:

• HD-Rendering
• Image Editing
• Support for subtitles
• Bundled with Windows

Framer

Framer combines the power of code with the ease of visual editing. Prototype beautiful microinteractions or realistic apps. It’s time to design with development in mind.

Features:

• Design handoff
• Live Preview
• Prototyping

Origami Studio

Origami Studio is a free design tool built by Facebook designers for creating interactive UI prototypes. An elegant, layer-based interface allows designers to repaidly...

Features:

• UI Design
• Prototyping

Principle

Principle makes it easy to create animated and interactive user interface designs. Whether you're designing the flow of a multi-screen app, or new interactions and...

Features:

• Prototyping
• Timeline

Flinto

Flinto for Mac is a comprehensive app prototyping tool that allows you to create anything from simple tap-through prototypes, to comprehensive prototypes with impressive...

InVision Studio

A new platform, inspired by the world’s best design teams. Design, prototype, and animate—all in one place.

Features:

• Keyframe animation
• Responsive design