Kilian Valkhof

Front-end & user experience developer, Jedi.

Announcing Polypane, a browser for a responsive web development workflow

Web, 16 May 2017

I’m working on a new browser for web developers and designers, called Polypane. It’s cross-platform (Windows, macOS and Linux) and really really cool.

Your chatbot should have a game loop

Chatbots, 26 April 2017

This article was originally published on

Many of the “smart” chatbots with Natural Language Processing and Artificial Intelligence still have a hard time keeping a conversation going. They keep forgetting whatever it was you were talking about even if you can see it plainly in the message right above!

Messenger Demo Viewer: demo (bot) interactions without showing personal chats

Chatbots, 7 March 2017

After you have made your awesome new Messenger bot, it’s time to demo it. If you made a bot for a professional client you don’t really want to give a demo with the always-present Messenger sidebar with your other personal chats visible for everyone.



A cross-platform, simple and smart autosaving scratchpad.


Drag-and-drop lossless compression of PNG and JPG images for web.

Messenger Demo Viewer

Demo your (bot) interactions on Messenger.

Fuck Yeah Keming!

A celebration of horrendous kerning.

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