Hi, you can find quite a lot of info at Photopea blog . It is built with Javascript for logic, HTML and CSS for UI. Project composition (merging all layers into one image) can be done with Javascript or WebGL (depending on whether WebGL is available in your browser). Thanks to WebGL, you can edit large files (big resolution, many layers) quite smoothly. I think that in some cases Photopea runs smoother than Photoshop.
Hi, you can find quite a lot of info at Photopea blog . It is built with Javascript for logic, HTML and CSS for UI. Project composition (merging all layers into one image) can be done with Javascript or WebGL (depending on whether WebGL is available in your browser). Thanks to WebGL, you can edit large files (big resolution, many layers) quite smoothly. I think that in some cases Photopea runs smoother than Photoshop.