GitHub - numandev1/pngtiny: A js image compression tool. The function is written in C, using the libimagequant and libpng libraries, reading png images for compression, and then exporting wasm to run on the page, so that the images can be compressed directly on the page without uploading to the server for processing.

#js version png compression tool

Just deploy the web folder to the server for access (needs to be accessed from a browser that supports webassembly, such as Chrome, edge)

You can visit demo

This project uses https://github.com/ImageOptim/libimagequant, https://github.com/glennrp/libpng, https://github.com/kohler/gifsicle and https://www.ijg.org /library
libimagequant is a library that compresses png24 into png8, and the compression effect is very good. libpng is a library for reading and generating pngs. libjpeg is a library for reading and compressing jpg. gifsicle is a library for reading and compressing gifs.
If you need to compile your own compression code, first install the new version of emsdk environment on your computer environment, and then run the build.bat file.
Then overwrite the files in the web folder with the compiled pngtiny.js and pngtiny.wasm files.

Name		Name	Last commit message	Last commit date
Latest commit History 8 Commits
include		include
lib		lib
web		web
.editorconfig		.editorconfig
.eslintrc.js		.eslintrc.js
.gitignore		.gitignore
LICENSE		LICENSE
README.md		README.md
build.bat		build.bat
end.js		end.js
gif_compress.h		gif_compress.h
gifsicle.c		gifsicle.c
jpg_compress.h		jpg_compress.h
png_compress.h		png_compress.h
pngtiny.js		pngtiny.js
pngtiny.wasm		pngtiny.wasm
pre.js		pre.js
tiny.c		tiny.c
tiny.h		tiny.h