Engineering that Sets a New Standard
Explore all built-in capabilities of LastBrowser in detail and compare head-to-head against traditional browsers.
Interactive Comparison Matrix
Filter by category or review the full side-by-side feature matrix.
| Feature / Capability | ✨ LastBrowser | Google Chrome | Microsoft Edge | Brave Browser | Arc (Windows) |
|---|---|---|---|---|---|
| Built-in AI Copilot (Split-View) | ✓ Sidekick (70/30) | ✕ No | ✓ Copilot (Cloud) | ✓ Leo AI | ✕ Abandoned |
| Bring Your Own Key (BYOK) & Ollama | ✓ Configurable AI providers and local Ollama | ✕ No | ✕ Microsoft Cloud Only | ✕ Leo Subscription Only | ✕ No |
| 48 Agentic Workflows & MCP | ✓ Native Support | ✕ No | ✕ No | ✕ No | ✕ No |
| Local-first (Zero Telemetry) | ✓ Yes (%APPDATA%) | ✕ Heavy Tracking | ✕ Microsoft Telemetry | ✓ Ad Blocker | ✕ Cloud Sync |
| Windows DPAPI Credential Encryption | ✓ Native Protection | ✓ Partial | ✓ Yes | ✓ Yes | ✕ No |
| Multi-Account Spaces (Session Isolation) | ✓ persist:profile:space | ✕ Separate Windows Only | ✕ Separate Profiles Only | ✕ No | ✓ Spaces |
| Native ConPTY PowerShell Terminal | ✓ Native Sidebar (Ctrl+`) | ✕ No | ✕ No | ✕ No | ✕ No |
| Terminal Doctor (Diagnostic Auto-Fixes) | ✓ Automated | ✕ No | ✕ No | ✕ No | ✕ No |
| Chrome MV3 Extensions + MCP Hub | ✓ Unified Extension Hub | ✓ WebStore Only | ✓ Edge Addons | ✓ WebStore Only | ✓ WebStore Only |
| Castlabs Electron Widevine DRM L3 | ✓ Spotify, Netflix, Disney+ | ✓ Yes | ✓ Yes (PlayReady) | ✓ Yes | ✕ Flaky on Win |
| Zero Bloatware / Zero Promo Ads | ✓ 100% Ad-Free UI | ✕ Google Promos | ✕ MSN Feed & Shopping | ✕ Crypto Rewards | ✓ Clean |
New in version 0.1.59
Version 0.1.59 was released on October 22, 2026. The installer is now significantly smaller (~300 MB instead of ~610 MB) as model files are no longer bundled; Setup and Portable are Certum-signed.
Compact chat composer
AUTO and “More” keep the default view short; detailed provider and selection policy lives under Advanced. AUTO prefers an eligible configured orchestrator. Otherwise it uses fresh observed limit headroom only when known for every candidate, then compares active and recent local requests, with configured order breaking ties. It does not optimize semantic quality; router qualification remains open.
Space Assistant & Quick Chat
The Assistant stays bound to its Space and browser profile and streams chat and task status. Short page actions such as summarize and explain use a separate transient Quick Chat instead of a regular chat.
Compact persistent goals
Goals can be controlled from chat and retain status and Space binding across shell reloads. The current probe used a controlled local provider; it does not establish external-provider or packaged release readiness.
Simple Local AI setup
The short flow checks the PC and guides recommendations and setup. Downloading a model does not make inference ready: the 350M router failed its independent holdout, the RAM guard is not qualified across supported hardware, and runtime, license/redistribution, and package checks remain open.
AUTO & Teamwork
AUTO prefers an eligible configured orchestrator. Otherwise it uses fresh observed limit headroom only when known for every candidate, then compares active/recent local requests and uses configured order to break ties. It does not optimize semantic quality or cost. The local 350M router failed its independent holdout. Teamwork remains a separate explicit feature.
Controlled actions
Browser and tool actions follow the selected profile and visible approvals. A provider that processes data is not presented as local or offline execution.
The 5 Pillars of LastBrowser
1. ConPTY Windows Terminal
No need to leave the browser for commands. Press Ctrl+\` to reveal a native Windows terminal right inside the sidebar. Run PowerShell, CMD, Git, npm, or Docker seamlessly.
2. Spaces & Session Isolation
End cookie bleed forever. Every Space runs in a dedicated partition: persist:profile:<spaceId>. Log into Space A with personal Google and Space B with enterprise credentials in the same window.
3. Sidekick Engine
Sidekick brings chat and curated skills together. Configure available AI providers in settings or use local Ollama models. Model availability and any charges depend on the provider.
4. Widevine DRM L3 Streaming
With Castlabs Electron CDM integration, music and video playback on Spotify, Apple Music, Netflix, and Disney+ works in crystal-clear HD out of the box.