Bird Tinder

made by noahzgordon, submitted by davidbalbert
It's Tinder for birds. A faithful recreation of the real thing (including animations), but with one obvious difference. Written in Elm. Running version at https://pecker.app.

MasterPiets

made by gabriellesc, submitted by davidbalbert
An in-browser IDE for the Piet programming language.

MuGo

made by brilee, submitted by davidbalbert
A minimal Go AI modeled on AlphaGo. It became the basis of Minigo (https://github.com/tensorflow/minigo), which is maintained by the Tensorflow team.

Palette Town

made by quelledanielle, submitted by davidbalbert
A GameBoy Color palette browser that uses your webcam.

Closing Time

made by haagen_daz, submitted by davidbalbert
Most stores aren't open 24/7. Amazon.com is. This extension makes Amazon.com more like other stores. The new Amazon.com hours are 10am-9pm M-F and 11am-8pm Sundays.

Unfamiliar City

made by mouse, submitted by davidbalbert
Programmatically generated city guides for imaginary cities. Pictures, maps, places of interest, local language, flora and fauna are all included.

Dockerlang

made by coco, mouse, submitted by davidbalbert
A programming language where every computation happens in a separate Docker container.

Flowerhead

made by charlietran, submitted by davidbalbert
A small game for the PICO-8 fantasy console. The animations are beautiful.

A tiny spreadsheet

made and submitted by davidbalbert
A simple spreadsheet that runs in the browser. It supports arithmetic formulas and cell references in under 600 lines of JavaScript and CSS.