Shadertoy is described as 'The first application to allow developers all over the globe to push pixels from code to screen using WebGL since 2009' and is an website. There are more than 25 alternatives to Shadertoy, not only websites but also apps for a variety of platforms, including Windows, Linux, Self-Hosted and iPhone apps. The best Shadertoy alternative is SHADERed, which is both free and Open Source. Other great sites and apps similar to Shadertoy are Shader Editor, The Book of Shaders, Shade - Pro Shader Editor and Shdr.
Shader Frog lets you create visual effects by composing two or more shaders together, and tweaking their parameters. You can build a complex effect out of simple components. You can then export your shader for use in your THREE.js game or application.
Shader editing environment with rapid prototyping, integrated preview window, debugging, and optimization tools. Supports DirectX and OpenGL shaders, artist-focused views, sample effects, custom importers, and integration with modeling and texturing tools.
United States
Shader Learning is an interactive browser-based platform for learning GPU programming through practical exercises. It offers over 250 challenges in GLSL and HLSL, allowing users to write and test shaders directly in the browser without any setup.
Rayground is a framework for rapid prototyping of algorithms based on the ray tracing paradigm. Its main goal is to help develop, test and share self contained modules that showcase a particular method or technique.
Shader Workship is an interactive GLSL fragment shader editor inspired by ShaderToy and built with Qt.
Shaders - Shader editor is an app which let you view, create and share shaders with other users. Shaders are little graphics programs which run on the GPU.
ProtoShade is a GLSL:ES Shader Prototyping Utility for Android. Code shaders on mobile devices while a viewport renders the results transparently in the background.
TyphoonLabs' OpenGL Shader Designer is an open-source shader development IDE created for writing vertex and fragment shaders in the OpenGL Shading Language (GLSL).
Noisedeck is a browser-based tool for creating generative and algorithmic art with GPU shaders. Aimed at artists, VJs, and shader developers.
United States
ShaderTool provides a flexible and editable node-powered pipeline that allows you to write shaders without also having to have written an engine. Use the integrated code editor to directly write shader code in either HLSL (DirectX) or GLSL (OpenGL).
Germany
EU
Synthclipse is a GLSL shader prototyping tool. It makes possible to fast develop all kinds of shaders: Fragment (FS), Vertex (VS), Geometry (GS), Tessellation (TS) and Compute (CS). Shader development can be done using compatible with Fragmentarium and Shadertoy (but limited to...
