Dia
The knowledge-work AI browser — calendar briefs, tab chat, synthesis.
Acquired — still operating
acquired by Atlassian $610M, closed Oct 2025
About
Dia is The Browser Company's AI browser: built for knowledge work — briefs of your calendar and inbox, synthesis across tools, and chat with your tabs.
Acquired by Atlassian for $610M (closed October 2025). macOS beta; Windows not yet shipped. Design-forward and promising, but a workplace bet more than a general browser — and the acquisition adds roadmap uncertainty.
What it can do
- Calendar/inbox briefs
- Tab chat
- Cross-tool synthesis
- Knowledge-work focused
- Atlassian-owned
Setup
- Request access / download the macOS beta.
- Connect calendar and inbox.
- Get briefs; chat with tabs.
Prerequisites
macOS (Apple silicon); early access.
Use cases
Works with
Trust score — 7/10
Scored 7/10 (metrics tier). Promising knowledge-work browser with major acquisition backing, but macOS-only beta with an uncertain Atlassian roadmap. Proprietary, provider-estimated adoption. Metrics tier.
How the trust score is built
Full methodology →- Adoption · stars/downloads, log-scaled vs peers
- 7.0/10
- Maintenance · recency, releases, issue load
- 7.0/10
- Openness · license + docs
- 4.5/10
- Manual review · sanity read + red-flag check
- 7.0/10
- · provider-tier estimate — thinner evidence (no public adoption metric)
- · The Browser Company's AI browser; acquired by Atlassian $610M
- · released 285 days ago
- · manual review: Dia — knowledge-work browser (calendar/inbox briefs, tab chat); macOS beta; Atlassian acquired Oct 2025; license: proprietary
Sources
Every fact above was checked against these sources. Where a claim comes from the provider and couldn't be independently verified, the text says so.