Atlassian has agreed to acquire The Browser Co., the New York-based startup behind the Arc and Dia browsers, in a $610 million all-cash deal that will close in the company’s fiscal second quarter, ending in December.
The purchase brings one of the most talked-about browser startups of the past five years under the umbrella of Atlassian, best known for its Jira project management software and Confluence collaboration platform. Founded in 2019, The Browser Co. has attempted to challenge incumbents such as Google’s Chrome and Apple’s Safari by rethinking the browser as a productivity hub rather than a mere tool for navigating the web.
Its flagship Arc browser, introduced in 2022, offered collaborative and organizational features including a built-in whiteboard and shared tab groups. Earlier this year, the startup rolled out Dia in beta, a lighter browser that integrates an AI assistant capable of analyzing multiple tabs at once.
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Atlassian co-founder and CEO Mike Cannon-Brookes said browsers today are poorly designed for the realities of modern work.
“Whatever it is that you’re actually doing in your browser is not particularly well served by a browser that was built in the name to browse,” he said. “It’s not built to work, it’s not built to act, it’s not built to do.”
Cannon-Brookes said Arc had helped him personally better manage his workload, especially its ability to organize and automatically archive old tabs. Still, he acknowledged that The Browser Co. struggled to convert its innovations into mainstream adoption.
“Our metrics were more like a highly specialized professional tool (like a video editor) than a mass-market consumer product, which we aspired to be closer to,” The Browser Co. CEO Josh Miller explained in a newsletter update.
The company eventually halted new feature development for Arc, sparking speculation about whether it might release the browser under an open-source license.
Growing Investor Interest in Browsers
The deal comes amid heightened investor fascination with AI-driven browsers. Perplexity, the fast-growing AI search company, made headlines by offering Google $34.5 billion for Chrome — a bid widely seen as symbolic but indicative of the renewed strategic importance of browsers. The Information reported that Perplexity also held talks with The Browser Co. in December, while OpenAI was rumored to be circling the startup as well.
But asked if Atlassian had considered Chrome, Cannon-Brookes dismissed the notion.
“I’m not even sure if there is a bidding competition for Chrome,” he said. “I didn’t see Google putting up an auction just yet. Look, I think we focus on actually getting acquisitions done and actually making those products a part of a coherent whole and delivering value for our customers. I’m not sure that stunt PR acquisition offers are really our thing, but we’ll leave that for them to do.”
The Browser Co. was valued at $550 million last year, with investors including Atlassian Ventures, Salesforce Ventures, Figma co-founder Dylan Field, and LinkedIn co-founder Reid Hoffman.
A Strategic Bet in Line With Atlassian’s M&A Playbook
At $610 million, this is not Atlassian’s largest acquisition — it paid $975 million for collaboration platform Trello in 2017 and $425 million for OpsGenie in 2018 — but it sits firmly in the company’s pattern of buying tools that expand its reach into adjacent productivity markets. Unlike Trello, which already had a large user base, The Browser Co. is being acquired more for its product vision and AI capabilities than its scale.
Analysts say the deal underlines Atlassian’s willingness to spend aggressively on assets that can deepen its product ecosystem. With annual revenues topping $4 billion, Atlassian can absorb acquisitions in the $500 million to $1 billion range without overextending, though investors will be watching to see if the company can turn The Browser Co.’s early innovations into meaningful enterprise adoption.
The financial risk is relatively modest compared to the potential upside: if Dia and Arc’s AI features can be successfully integrated into Atlassian’s suite, the acquisition could elevate the browser from a commodity tool into a new entry point for enterprise productivity.
However, the deal, for Atlassian, is not just about owning another piece of software, but about redefining the browser itself as an enterprise tool. Jira and Confluence already live inside web environments, and a browser optimized for collaboration could become the central nervous system of Atlassian’s ecosystem.
“It’s really about taking Arc’s SaaS application experience and power user features, and Dia’s AI and elegance and speed and sort of svelte nature, and Atlassian’s enterprise know-how, and working out how to put all that together into Dia, or into the AI part of the browser,” Cannon-Brookes said.
The acquisition is likened to what happened in the early days of cloud computing, when startups like Heroku and GitHub pioneered developer platforms before being snapped up by Salesforce and Microsoft. The Browser Co. was similarly experimenting with what browsers could become in an AI-driven world. Atlassian’s acquisition suggests that consolidation in this space is already beginning.
However, the challenge now is execution. Some analysts believe that if Atlassian can integrate Arc’s creative design, Dia’s conversational AI, and its own enterprise muscle, it could redefine the browser for the next era of work.