Indeed it is similar to Shadertoy (or any other live GLSL editor like, for example, the live editor from The Book of Shaders ( https://thebookofshaders.com/ - which I really recommend, VERY good source for learning, helped me a lot! ), but I wanted to have a set of more flexible features to fit my personal usage like, for example, using any external images (from imgur or any other website that allows cross-domain access) as sampler2D-uniform texture inputs, or using my own MP3 files to be FFT analysed and produce audio-reactive shaders with more combinations of frequency bands and averages available, the resolution selector, export to GIF, etc. I still have to document and publish all the set of uniforms available and provide an usage guide to make all the features more clear. There's already some incredibly great live GLSL editors around, all of them with their bright features (and the lack of some good ones). My intention was not to produce a clone, but to contribute with a different set of tools to the same purpose.