Flutter Shape Builder is a free design tool for mobile developers and designers. You can draw custom shapes, paths, and curves on an interactive canvas. When you are done, you can copy clean Dart code directly into your apps. Everything works in your web browser with no setup or account needed.
Draw vector paths and custom shapes on the canvas. Add points, move handles, and make smooth curves. You can combine shapes with union, subtract, and intersect tools. Then copy ready CustomPainter code for your Flutter project in one click.
Create smooth wave dividers and flowing headers for your app screens. Adjust wave height, count, and speed with easy controls. You can export static clippers or running wave animations at full frame rates.
Make fluid blob shapes and soft backdrops for mobile layouts. Change node count, roundness, and random seeds. You can copy clean clipper classes and morphing shapes without external packages.
Create colorful linear, radial, and sweep gradients. Pick your colors, adjust stops, and turn the angle dial. Copy clear BoxDecoration code that is easy to read and edit.
Layer drop shadows to give depth to cards and buttons. Control blur radius, spread, and offset visually. Preview your elevation on light and dark surfaces before adding it to your app.
Turn standard SVG files and icons into native code. Paste path coordinates into the importer and get clean vector paths that render fast on all mobile devices.
Learn how to draw custom charts, work with curve coordinates, and paint custom graphics. Our step by step guides help both new learners and senior engineers ship polished user interfaces quickly.
Access our machine-readable AI documentation and technical specifications in LLM Technical Documentation and Full Technical Specification for prompt context and code generation patterns.