We launched Linear exactly one year ago to help high-performing teams who wanted a better way to build software. Linear is fast, effortless, and simple to use. …


Before we started Linear, Jori and I built another company that was part of the Y Combinator’s Summer 2012 batch. There were a lot of lessons I learned from YC. However, one thing I wish I had understood better was what effective product development looks like.

Back then, we knew…


Morning of the NYE 2019. Lapland, Finland

As for everyone else, the pandemic played a big part in this year. It forced us to think about new habits and ways, while it also gave us time to reflect and showed us what we can be grateful for. I’m grateful to live in a place that we can…


At Linear our focus has been on empowering builders to focus on their work of creating software. In the past year, we have come a long way and we are excited to share the latest milestones in our journey.

Today, we’re announcing that we’ve raised $13M in Series A funding…


At Linear, we believe software can feel magical. Well designed tools and practices encourage momentum and level up execution in our teams. Linear is now open for sign ups at https://linear.app.

This past year, we’ve been working on refining Linear with our early adopters. We’ve spent hours talking to company…


Changelogs are not uncommon in software development, but often they are not used in early stage companies to engage with users and investors.

We picked up the practice of writing a changelog when we started building the issue tracking and project management tool Linear. …


Our mission is to streamline how teams build great software, starting from issue tracking.

At Linear, we are creating software for startups and companies who look to create impact. We believe creators should focus on the work they create, not manually tracking their work. Managers should spend their time prioritizing and giving direction, not bugging their teams for updates. …


Introducing the more enjoyable and efficient way to manage software development with linear.app

Managing software development and design well is one of the most critical activities of any product company. …


Each year, I try write these “year in reviews.” Mainly for myself to reflect and possibly read them again in few years. However, often during the holidays, I don’t feel like picking up the computer, so in the end don’t finish task.

So as of now, going forward, I will…


How we introduced Airbnb Cereal to our UI

On May 15, 2018, Airbnb launched a new typeface called Airbnb Cereal across our product and brand. Airbnb Cereal was created in partnership with Dalton Maag — a global font foundry — and Airbnb’s Marketing and Experience Design teams.

This case study is part of a launch series, and details…

Karri Saarinen

Cofounder, CEO Linear. Past: Principal Designer & co-creator design systems Airbnb. Founding design Coinbase . Cofounded Kippt, Rails Girls. YC Alumn

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