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The Browser Company Ends Arc To Focus On Developing AI-Driven Browser 'Dia'

Dia

Founded in August 2019 by Josh Miller and Hursh Agrawal, The Browser Company aims for the sky.

The Browser Company introduced Arc, a browser built on Chromium and written in Swift, designed to function more like an operating system for the web. With innovative features for customizing websites, Arc represented a ground-up reimagining of the browser—emphasizing productivity and a user-first design philosophy.

Building on this foundation, the company launched Arc Search, a mobile experience that goes beyond traditional search engines by curating and summarizing information from multiple sources—essentially bypassing the conventional search results page.

The overarching mission was clear: to reinvent the way people browse the web.

But then came the rise of large language models (LLMs)—a technological arms race ignited by OpenAI’s release of ChatGPT, changing everything about how people access and interact with information online.

In an attempt to jump into the bandwagon, The Browser Company decided to halt the development of Arc, in order to focus on the development of 'Dia,' an AI-powered browser.

In a blog post, the company’s CEO, Josh Miller, said Arc browser ran into a “novelty tax” problem, explaining that:

"For most people, Arc was simply too different, with too many new things to learn, for too little reward […] On top of that, Arc lacked cohesion in both its core features and core values. It was experimental, that was part of its charm, but also its complexity."

It all began when the company announced Dia in December 2024, and admitted that Arc was a complex browser for a lot of users.

Because the goal was to create a product that appealed to the masses, The Browser Company has been issuing bug fixes and security updates to Arc, but has stopped developing the app and adding new features into it.

Despite shifting its focus, the company doesn't say anything about shutting down Arc completely.

Instead, it said that it's considering either selling it or open-sourcing it.

As for the latter, Miller said the challenge in open-sourcing the browser is that Arc is built on top of the Arc Development Kit, an internal SDK which also serves as the core component of its new browser, Dia. At this time, the company has no plans to give that away just yet.

"While we’d love to open-source Arc someday, we can’t do that meaningfully without also open-sourcing ADK. And ADK is still core to our company’s value. That doesn’t mean it’ll never happen."

At this time, The Browser Company’s Dia browser is still in alpha testing.

Though it’s not yet publicly available, Dia is already signaling a bold ambition: to redefine the web browsing experience through deep integration of artificial intelligence.

Unlike traditional browsers, Dia is envisioned as a smart, intuitive environment—one that doesn’t just display the web, but actively helps users navigate it.

Users can interact with Dia using natural language, issuing commands as if speaking to an assistant. It can carry out tasks on their behalf, such as adding items to an online cart from an emailed shopping list or sending tailored emails to multiple recipients. The browser also automates repetitive actions like organizing bookmarks or generating research summaries, ultimately streamlining workflows and boosting productivity. By analyzing user behavior, Dia fine-tunes recommendations and interactions, delivering a more personalized and efficient web experience.

Like previously mentioned, Dia is constructed upon the ADK, an internal SDK that also powered the Arc browser. This shared infrastructure allows for the integration of advanced AI functionalities within the browser environment, facilitating the development of features like natural language processing and task automation.

Published: 
28/05/2025