Kilian Valkhof
@kilianvalkhof.com
I build tools for devs and designers: @Polypane.app, FixA11y, Superposition | Electron governance member | He/him
tad aggressive there, Firefox.
December 4, 2025 at 11:51 AM
tad aggressive there, Firefox.
I’m at DevFest Strasbourg today! My talk is at 15:40 on stage 1.
I brought stickers, so come say hi!
I brought stickers, so come say hi!
November 27, 2025 at 9:10 AM
I’m at DevFest Strasbourg today! My talk is at 15:40 on stage 1.
I brought stickers, so come say hi!
I brought stickers, so come say hi!
I don't often get nerd sniped * but I just added support for line numbers in @Polypane.app's elements panel after thinking it impossible for the past 5 years.
* okay like once a week. maybe twice.
* okay like once a week. maybe twice.
October 15, 2025 at 11:09 AM
I don't often get nerd sniped * but I just added support for line numbers in @Polypane.app's elements panel after thinking it impossible for the past 5 years.
* okay like once a week. maybe twice.
* okay like once a week. maybe twice.
This was a tiny feature to implement, but I get so much value out of color coding the address bar depending on the domain I'm working on.
Tab customization in @polypane.app: polypane.app/docs/tab-cus...
Tab customization in @polypane.app: polypane.app/docs/tab-cus...
September 30, 2025 at 8:29 AM
This was a tiny feature to implement, but I get so much value out of color coding the address bar depending on the domain I'm working on.
Tab customization in @polypane.app: polypane.app/docs/tab-cus...
Tab customization in @polypane.app: polypane.app/docs/tab-cus...
Please can someone who is good with UX help me pick out a nice border radius for my macOS app.
September 22, 2025 at 1:40 PM
Please can someone who is good with UX help me pick out a nice border radius for my macOS app.
It's fixed for me!
September 18, 2025 at 8:59 AM
It's fixed for me!
Remind me again, how much is @linkedin.com worth nowadays?
September 17, 2025 at 11:47 AM
Remind me again, how much is @linkedin.com worth nowadays?
-> Polypane
-> Focus mode
-> So smooth.
Bonus:
1. Animated transition between known sizes
2. Zoom way, way larger than your current screen
3. Stress test with random resizes
-> Focus mode
-> So smooth.
Bonus:
1. Animated transition between known sizes
2. Zoom way, way larger than your current screen
3. Stress test with random resizes
September 11, 2025 at 1:16 PM
-> Polypane
-> Focus mode
-> So smooth.
Bonus:
1. Animated transition between known sizes
2. Zoom way, way larger than your current screen
3. Stress test with random resizes
-> Focus mode
-> So smooth.
Bonus:
1. Animated transition between known sizes
2. Zoom way, way larger than your current screen
3. Stress test with random resizes
Geez @discord.com maybe chill out a little.
September 10, 2025 at 1:17 PM
Geez @discord.com maybe chill out a little.
This seems to be a little under the radar, but Chromium 140 ships with support for caret-shape!
Instead of a regular bar, you can also have a block (like insert) or underscore (great for 2fa codes and other digits)
Instead of a regular bar, you can also have a block (like insert) or underscore (great for 2fa codes and other digits)
September 8, 2025 at 12:11 PM
This seems to be a little under the radar, but Chromium 140 ships with support for caret-shape!
Instead of a regular bar, you can also have a block (like insert) or underscore (great for 2fa codes and other digits)
Instead of a regular bar, you can also have a block (like insert) or underscore (great for 2fa codes and other digits)
"Google search is very smart, it doesn't check words but knows semantics!!"
me: *changes the word "developers" to "devs" in the site title*
Google:
me: *changes the word "developers" to "devs" in the site title*
Google:
July 23, 2025 at 8:54 AM
"Google search is very smart, it doesn't check words but knows semantics!!"
me: *changes the word "developers" to "devs" in the site title*
Google:
me: *changes the word "developers" to "devs" in the site title*
Google:
The State of HTML survey is live!
Share your opinion on HTML and the DOM: survey.devographics.com/en-US/survey...
Share your opinion on HTML and the DOM: survey.devographics.com/en-US/survey...
July 21, 2025 at 8:43 AM
The State of HTML survey is live!
Share your opinion on HTML and the DOM: survey.devographics.com/en-US/survey...
Share your opinion on HTML and the DOM: survey.devographics.com/en-US/survey...
5 web features I find annoying as a seeing person, an abridged list: *gestures vaguely across the screenshot of the link*
July 14, 2025 at 3:10 PM
5 web features I find annoying as a seeing person, an abridged list: *gestures vaguely across the screenshot of the link*
quick video showing with and without word-spacing.
July 7, 2025 at 7:11 AM
quick video showing with and without word-spacing.
another pedantic thing: the user icon isn't vertically centered *eye twitch*
July 7, 2025 at 7:04 AM
another pedantic thing: the user icon isn't vertically centered *eye twitch*
Are... are the linkedin bros okay?
June 19, 2025 at 10:10 AM
Are... are the linkedin bros okay?
Strong words by Alex Russell at JSNation today.
June 12, 2025 at 10:47 AM
Strong words by Alex Russell at JSNation today.
Strong words by Alex Russell at JSNation today.
June 12, 2025 at 9:16 AM
Strong words by Alex Russell at JSNation today.
Here’s @sachagreif.com spreading the gospel at JSNation.
June 12, 2025 at 7:51 AM
Here’s @sachagreif.com spreading the gospel at JSNation.
I scored 525 points. Take the survey to see if you can beat me!
June 4, 2025 at 2:01 PM
I scored 525 points. Take the survey to see if you can beat me!
Google's updating their Material design language. After three years of research they found that... "BIG THING EASY TO SEE". Good job!
I understand that the big ass button in the middle of the screen is better than the tiny tipped-over tipi in the top right.
Still worse than a button with "send".
I understand that the big ass button in the middle of the screen is better than the tiny tipped-over tipi in the top right.
Still worse than a button with "send".
May 16, 2025 at 8:36 AM
Google's updating their Material design language. After three years of research they found that... "BIG THING EASY TO SEE". Good job!
I understand that the big ass button in the middle of the screen is better than the tiny tipped-over tipi in the top right.
Still worse than a button with "send".
I understand that the big ass button in the middle of the screen is better than the tiny tipped-over tipi in the top right.
Still worse than a button with "send".
Youtube's much higher res
May 13, 2025 at 1:44 PM
Youtube's much higher res