Kilian Valkhof

Front-end & user experience developer, Jedi.

Design tools for 2018

Design, 7 November 2017

In the past few years tons of new web design tools came out. The old model of static pixelbased comps of screens is slowly being replaced with more modern ideas of designing. These new design tools use constraint based components, or even entire lay-outing systems, they use machine learning to suggest you colours and fonts, they let you version your designs or let you design component systems instead of static pages.

My productivity system from scratch

Life, 6 July 2017

This article was originally published on The Human In The Machine.

I am not a big ‘productivity’ person. I mostly get by jotting down notes and keeping lists (for whatever I’m doing at the moment, or more general things-to-do-in-the-near-future lists.) It’s manageable enough to not have to adopt a Formal Productivity System. I’m pretty happy about that.

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 browser for responsive web design and development.


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.


A Messenger Adventure!

Go on a text adventure in Facebook Messenger.

Fuck Yeah Keming!

A celebration of horrendous kerning.

More projects

Head over to my Projects page for more.

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