Software engineer at @browsercompany working on making Arc fast. Previously at @google on #chrome and #fuchsia. Passionate about #making and #woodworking.
Joined December 2010
- Tweets 183
- Following 176
- Followers 582
- Likes 362
18 Photos and videos
Sebastien Marchand retweeted
7 Nov 2025
Honestly it’s so nice to work with everyone at The Browser Company of New York
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Sebastien Marchand retweeted
11 Jun 2025
Here's the big idea behind @diabrowser:
You know how TikTok gets better with every swipe? Dia gets more personalized with every tab you open.
This is 100x more context than ChatGPT, automatically. And we believe it changes what's possible with AI.
But we need your help...
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11 Jun 2025
"Imagine Chrome, only with far more design polish and more playful animations" 👌
The Dia browser is a big bet on the web — and an even bigger bet on AI theverge.com/web/685232/dia-…
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Sebastien Marchand retweeted
11 Jun 2025
Meet Dia. Now available for Arc members.
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11 Jun 2025
🌅
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Sebastien Marchand retweeted
10 Oct 2024
Hey all, I’m excited to announce that Arc is now natively available on Windows Arm64 devices as of TODAY!! 🥳
Go hit that download button from arc.net and as always, please let us know if you have any issues 🙏🏼
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Sebastien Marchand retweeted
14 Aug 2024
We've been playing around with different messaging and creative directions for our mobile app Arc Search and want to share a few team favorites:
Which one do you prefer?
1. 1961 - A fast new browser, with instant answers
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1 Aug 2024
Arc is now available on Windows 10! It took a lot of work across many teams to get it ready for release! Big day!
1 Aug 2024
For Arc Thursdays™️ this week -
Arc is now available on Windows 10!
🔗Download now: arc [dot] net
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13 Jun 2024
This week’s release of Arc on Windows includes a complete redesign of the tab switching logic, making it faster and flicker free! It's been a lot of work across multiple technology stacks (Chromium, WinUI, Swift…). I’m really proud of the final result!
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7 Jun 2024
Having this group of passionate members testing early versions of Arc really helps us raise the bar and ship a more stable Arc to everyone, thanks to all of them!
6 Jun 2024
A big shoutout to @arcinternet Early Birds! This week you (yes you!) helped us identify not one, but TWO serious regressions that could have had landed on Arc, but thanks to those valuable Arc members, we fixed them on time for tomorrow's release! 💙arc.net/earlybirds
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3 Jun 2024
Freezing background tabs that use too much CPU is just one of the many features that we have added to Arc to make it FAST! And we won't stop!
3 Jun 2024
In recent months we froze over 25 million tabs that were secretly slowing down your computer (thx @thisIsSebM).
All done quietly – w/out asking anything from Arc members – to make days on the internet a little bit smoother & speedier.
You're gonna feel like this in Arc soon:
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14 May 2024
Venez nous rencontrer!
14 May 2024
🇨🇦 The Browser Company is coming to Montreal later this month and we want to meet you!
Live locally and want to join us for a session at our offsite on May 29th?
Fill out this form 🫂👉 browserco.typeform.com/montr…
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Sebastien Marchand retweeted
14 May 2024
🇨🇦 The Browser Company is coming to Montreal later this month and we want to meet you!
Live locally and want to join us for a session at our offsite on May 29th?
Fill out this form 🫂👉 browserco.typeform.com/montr…
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The best new browser for Windows trib.al/TXBOAhM
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30 Apr 2024
We did it!
30 Apr 2024
Arc on Windows is finally here.
No more waitlists, no more betas.
Download Arc today.
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21 Mar 2024
🌊
21 Mar 2024
The Browser Company is redefining the way that we interact with the internet. We’re thrilled to deepen our partnership with them. docs.google.com/document/d/1…
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Sebastien Marchand retweeted
13 Mar 2024
🪟Arc for Windows Update🪟
🧪 ~100k beta testers onboarded
📈 ~1 million people on waitlist
📅 Opening to GA before Summer
🥇 1st major Windows app built in Swift
Shoutout to @alexandracoding and the team!
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29 Jan 2024
I've watched the team build this entire app in just a few *weeks* and I still can't believe it. What an amazing (and fun!) group of people! Such a privilege to work with them!
28 Jan 2024
all credit for Arc Search goes to:
— @kasper_lahti for prototyping 50 ideas
— @adamstern_ for leading the project & eng
— @karlamickens for the design & aesthetic
— @nateparrott for a bit of everything above
— Sika for too much to list here, incl. privacy
it was the A-Team🤌
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Sebastien Marchand retweeted
9 Nov 2023
The Browser Company of New York '23
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