Fast-PNG: PNG image decoder and encoder

1. fast-png

   1 1 421 3.8 TypeScript

   PNG image decoder and encoder written entirely in JavaScript

   

2. InfluxDB

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3. stb

   2 172 28,487 6.4 C

   stb single-file public domain libraries for C/C++

   

   stb_image is a single header image encoder/decoder that is used pretty widely across game development codebases. and it supports a ton of different formats.

   https://github.com/nothings/stb

4. pako

   3 8 5,783 0.0 JavaScript

   high speed zlib port to javascript, works in browser & node.js

   

   Looks like it depends on https://github.com/nodeca/pako for the zlib compression.

   > Almost as fast in modern JS engines as C implementation (see benchmarks).

   Impressive, although zlib itself is no longer the bar to beat for zlib, I think that goes to https://github.com/zlib-ng/zlib-ng these days

5. zlib-ng

   4 19 1,747 9.1 C

   zlib replacement with optimizations for "next generation" systems.

   

   Looks like it depends on https://github.com/nodeca/pako for the zlib compression.

   > Almost as fast in modern JS engines as C implementation (see benchmarks).

   Impressive, although zlib itself is no longer the bar to beat for zlib, I think that goes to https://github.com/zlib-ng/zlib-ng these days

6. wuffs

   5 94 4,471 9.4 C

   Wrangling Untrusted File Formats Safely

   

   wuffs has standalone C header for png decoding that is safe and very fast: https://github.com/google/wuffs/blob/main/doc/std/image-deco...

   There's also libspng, supports encoding & decoding, but it does not seem to be very maintained anymore, and it has extra dependency on zlib/miniz: https://github.com/randy408/libspng

7. libspng

   6 8 775 1.7 C

   Simple, modern libpng alternative

   

   wuffs has standalone C header for png decoding that is safe and very fast: https://github.com/google/wuffs/blob/main/doc/std/image-deco...

   There's also libspng, supports encoding & decoding, but it does not seem to be very maintained anymore, and it has extra dependency on zlib/miniz: https://github.com/randy408/libspng

8. fpnge

   7 5 97 3.5 C++

   Demo of a fast PNG encoder.

   

   https://github.com/veluca93/fpnge is a very fast png encoder. Limited format support and a bit lower compression ratio, but runs significantly faster than alternatives. Here's presentation on it: https://www.lucaversari.it/FJXL_and_FPNGE.pdf

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10. png-tools

    8 1 88 5.5 JavaScript

    low-level PNG tools for JavaScript and Web

    

    Last time I benchmarked png-tools, it was about 2-6x faster than fast-png for encoding.

    https://github.com/mattdesl/png-tools

    I’ve also added some other features like multi-threaded encoding, cancellation, encoding physical dimensions, color profiles, all of which is useful for encoding large print-ready PNGs on the client.

11. uttori-image-png

    9 1 1 - JavaScript

    A PNG Decoder and meta data reading utility.

    

    Nice! Remarkably similar to my own PNG implementation. I don't think I have pushed up the encoding work I did but should. I would highly recommend anyone / everyone to write a parser for a file format, you learn a lot. I also didn't implement the interlacing support.

    My goal was not to be fast however, but to just document a good reference and be able to come back to it and understand what it was doing and what I wrote.

    https://github.com/uttori/uttori-image-png

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