SlimJet is a fast and feature rich portable web browser developed by FlashPeak Inc. Distinct from FlashPeak's older SlimBoat browser, SlimJet is a Chromium-based browser designed for speed, efficiency, and convenience. It launches quickly, loads pages fast, and can be run directly from a USB flash drive without installation.
Built on the Chromium engine rather than legacy WebKit, SlimJet delivers modern web compatibility while adding a collection of built in tools that reduce the need for third party extensions. This makes it especially appealing as a portable browser you can carry and use anywhere.
Portable Web Browser SlimJet

Key Features
- Fast Startup and Page Loading: Optimized for quick launch and responsive browsing.
- Chromium Powered: Uses the Chromium engine for strong standards support and compatibility with modern websites.
- Built In Ad Blocker: Blocks banner ads, popups, and other intrusive advertising without extensions.
- YouTube Video Downloader: Download online videos directly from supported sites.
- Integrated Translator: Quickly translate web pages into different languages.
- Smart Download Manager: Enhanced download handling with resume support and faster transfers.
- Web Inspector: Developer tools similar to Firebug for inspecting and debugging web pages.
- Search Engine Support: Includes Bing by default, with the option to add or change search providers.
Why Use SlimJet as a Portable Browser?
- No installation required, runs entirely from a USB drive
- Portable operation does not guarantee that the host system retains no browsing activity records or temporary files
- Ideal for shared computers, travel, or testing environments
- Feature complete out of the box, fewer extensions needed
Portability Notes
When extracted to a removable drive, the portable package is intended to keep profile data, settings, bookmarks, and cache with its files. Actual behavior can depend on the package and configuration, and Windows or other software may still record activity or create temporary files on the host. Test the exact build before relying on it to keep personal data on the removable drive.
Limitations to Consider
- Portable build is relatively large compared to minimalist browsers
- Not fully open source due to bundled proprietary components
- Some users may prefer extension based blockers instead of built in tools
Specifications and Download
- Author's Website: SlimJet Project Home Page
- Developer: FlashPeak Inc.
- Engine: Chromium
- License: Freeware
- Extracted Size: Approximately 265 MB
- Operating System: Windows
- Portable: Yes
- Download: Download SlimJet Portable
Final Thoughts
SlimJet may suit users who want a Chromium-based browser with built-in utilities in a package designed for portable use. Before using it for sensitive browsing, check the bundled Chromium version and release history against current official releases. Do not assume the portable package is current, updates itself, or leaves no activity records on the host.