The AI browser that understands your context, organizes your work, automates tasks, and opens new possibilities. Now available on macOS and Windows.
Joined January 2026
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Hey Arc users, 👋
If you’re looking for another option that still feels familiar, try Tabbit.
Features that may make you feel at home:
Vertical Tabs
Pinned Tabs
Smart Tab Organization
Tab Groups
Split View
PWA
Ctrl+Tab = recent tab
...
And if you mainly want a solid browser for work and reading: Tabbit also doubles as a go-to local file reader and editor for Markdwns, PDFs, and more.
A technical breakdown of how we built Tabbit CLI.
Agents work in the browser you already use, with task-level isolation, a browser-managed runtime, and plain Playwright code.
In paired runs vs. Codex's Chrome integration: similar accuracy, 47.2% fewer input tokens.
Why Do Eclipses Happen? - go.tabbit.space/projects/UPQ…
Now go to Tabbit and make your own projects and publish it to everyone in one click.
First of all, RIP Arc.
Secondly, just used Tabbit CLI to scan 400 replies to Arc's sunset post. Here are the features people want to keep. Which would you miss most and what would you like Tabbit to build next?
🤖 Made with AI
We've decided to sunset Arc on December 22, 2026.
That's not an easy sentence to write. We spent years building Arc and celebrating each and every release along the way: we have so much pride and love for what we made alongside the Arc community.
Our priority is to deliver best-in-class security for our members. Keeping a browser secure takes constant, dedicated work that is only increasing in the age of AI. Dia was built from the ground up to meet today’s security standards, so that's where our engineering and security teams will focus moving forward.
We've worked to make switching to @diabrowser as easy as possible for Arc members. Here's how:
· Your passwords, bookmarks, extensions and history come over to Dia seamlessly.
· Spaces, Folders, and Tab Groups are in Dia and import over with your data intact.
· Dia now surpasses Arc benchmarks in stability, speed, and security.
· The browser features you use in Arc are free in Dia, and the AI is optional.
Thank you for using Arc, for pushing us to make it better, and for building alongside us. The team that made Arc is the same team behind Dia, and some of our most ambitious work is just ahead. We'd love for you to be there with us when it lands.
Markdown is becoming the default file format for humans and agents working together in the AI era.
Tabbit gives you browser automation and Markdown preview in one place, and right now it's the best combination.
折腾了大半天markdown软件最后发现，居然最适合自己的是一款浏览器，而且让 Claude 配合浏览器的技能做视频的上传发布和抓数据，特别省token，而且效率很高，感谢美团出品。
Tabbit - The browser for the AI era @TabbitBrowser 已经成为的默认浏览器了，Chrome都很少打开
Tabbit v1.17: always on the way to elevating your daily experience.
Skills Market now lets you browse by content category. Find Skills for content creation, productivity, study, and more.
Btw, screenshots in Tabbit now support scrolling capture on macOS. A better way to share great tea with your friends 👀
Tabbit v1.16 is live.
Preview, translate, and export your files without leaving the browser.
One place to manage your Markdown, HTML and PDFs.
Claude Haiku 5.5 is now available in Tabbit.
It’s Anthropic’s fastest model yet, which makes it a good fit for the little questions that come up while browsing: what a paragraph means, which details matter, or how to phrase a reply.
Pick Haiku-5.5 from the model menu and ask about the page you’re on.
We gave Claude Sonnet 5.5 its own developer guide and asked it to turn the article into an interactive model picker and migration checklist inside Tabbit.
Finished in under 30 seconds, using just 0.38% of the available token budget.
Claude Sonnet 5.5 is now live in Tabbit.
OpenAI and Anthropic released three new models within hours of each other. We spent the last few hours getting all three into Tabbit.
GPT-6 Sol, GPT-6 Luna, and Claude Opus 5.5 are live now.
Use them with the page you’re already on, and switch models whenever the task changes.
uBlock Origin has long been considered the gold standard for blocking ads and trackers. But on Chrome, the original version has become increasingly difficult to use.
Tabbit now includes the original uBlock Origin, built directly into the browser.
It’s off by default. To turn it on, go to:
Settings → Extensions → My Extensions → Built-in Extensions