v0.1.3 · Open Beta Windows 10/11 Sidekick integrated

The browser that works with you.

Lastbrowser combines fast browsing with Sidekick in the sidebar. Read pages, ask questions, write, organize, and download files — all in one window, without losing your flow.

Download for Windows Docs
Direct downloads on lastbrowser.com · Setup & Portable · update feed on the same domain
Lastbrowser Logo
✦ assisted by SidekickProduct logo in the release hero; Sidekick supports the workflow.
https://lastbrowser.com · Open Beta
Chat Chat
Tasks Tasks
Skills Skills
Spaces Spaces
Memory Memory
Browser Browser
Settings Settings

Summarize. Ask. Act.

Sidekick keeps up with the page, gives you summaries, and helps you move forward without jumping into other tabs.

Sidekick
“Summarize this page in 3 points.”
“Absolutely — I’ll show you the key takeaways, highlight open questions, and create a task right away if you want.”
Setup · ready to install Portable · no installation Updates · via /downloads/latest.yml

What's included

Everything you need in a productive browser is visible on the page and built into the product: Chat, Tasks, Skills, Spaces, Memory, and the classic browser flow.

Chat without tab hopping

Chat without tab hopping

Ask questions, understand content, draft text, and review decisions — right next to the page.

Keep tasks in sight

Keep Tasks in sight

Create tasks from context, prioritize them, and leave them open until they are done.

Launch Skills instantly

Launch Skills instantly

The built-in workflows for research, writing, analysis, and more are ready when you are.

Spaces for projects

Spaces for projects

Each project gets its own space with cleanly separated context.

Keep context

Keep context

Important information stays in the Space and is there again for the next step.

Windows browser

Windows browser

Available as Setup or Portable, quick to get started, and built for everyday use.

How you work with it

A short, clean flow: install, launch, keep working in the sidebar. No demo copy — just a real setup for everyday use.

01

Install

Download Setup or Portable, launch it, and open the browser. No detour through a demo page — productive right away.

02

Use Sidekick

The sidebar stays open while you browse. Chat, ask, summarize, and act.

03

Work with Spaces

Keep projects separated cleanly so research, tasks, and history never get mixed up.

Docs

The key release information is documented right here. That way nobody has to bounce between the website, the README, and the release page.

Download

  • The download is served directly via lastbrowser.com — no GitHub page in between.
  • Use Setup if you want the classic installation with update integration.
  • Use Portable if you want to start Lastbrowser without installing it.

Updates

  • The app reads its update metadata from /downloads/latest.yml.
  • The release files are served directly from this domain.
  • That keeps the update flow clear, stable, and easy to document.

Privacy

  • Sidekick can run locally or connect with your own keys.
  • You stay in control of how the assistant works.
  • The website explains the product, not the brand book.

Help

  • Start with the sidebar and create a Space if you're new to it.
  • If you're checking a download, use Setup for installation or Portable for quick tests.
  • The most important pages are linked directly here.
Open Beta · Release 0.1.3

Get Lastbrowser

Direct download from lastbrowser.com — no GitHub page in between. Choose Setup for installation or Portable for a fast start.

Download Setup Download Portable
Version 0.1.3 Open Beta Windows 10/11 /downloads/latest.yml

Release info

  • Setup and Portable come directly from this domain.
  • The update feed is available at /downloads/latest.yml.
  • The website doesn't showcase the release notes — it delivers the product.