Img

Img is a repo containing implemenetations, made from scratch, of various image formats offering the ability to encode and decode between them, and integrate smoothly with various Web APIs like the Canvas. Where possible, we offer both sync and streaming encoders/decoders.

Missing a format?

If this repo is missing a format you'd like to work with, simply create an issue suggesting the format, along with a link to the standard, specifcation or some document that is essentally the source of truth for that format. Do that and it might get an implementation here.

Formats

Package	Latest Version	Spec
@img/apng	Not Implemented Yet	https://wiki.mozilla.org/APNG_Specification
@img/avif	Not Implemented Yet	https://aomediacodec.github.io/av1-avif/v1.1.0.html
@img/gif	Not Implemented Yet	https://www.w3.org/Graphics/GIF/spec-gif89a.txt
@img/jpeg	Not Implemented Yet	https://www.w3.org/Graphics/JPEG/jfif3.pdf
@img/png		https://www.w3.org/TR/2003/REC-PNG-20031110/
@img/qoi		https://qoiformat.org/qoi-specification.pdf
@img/svg	Not Implemented Yet	https://www.w3.org/TR/SVG2/
@img/webp	Not Implemented Yet	https://developers.google.com/speed/webp/docs/riff_container

Try it yourself

Quickly convert images from one of the above formats to another locally in your browser: https://blackaslight.github.io/img/

Coverage

Coverage of Repo