Head-to-head · AI Browser Agents
BrowserOS vs Fellou
BrowserOS leads on 0 checks, Fellou on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreBrowserOS · 8.8/10
- Free planboth
BrowserOS scores higher on our rubric for ai browser agents: 8.8 against 8.5 out of 10; our editors rank them #6 and #8.
BrowserOS is the better fit for free open-source desktop browser agents. Fellou is the better fit for mac users combining research and automation.
- BrowserOS fits best
Free open-source desktop browser agents
- Fellou fits best
Mac users combining research and automation
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Side by side
| Feature | BrowserOS 8.8/10 Visit ↗ | Fellou 8.5/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.8 | 8.5 |
| Ranking | #6 in AI Browser Agents | #8 in AI Browser Agents |
| Best for | Free open-source desktop browser agents | Mac users combining research and automation |
| Pricing model | Free | Free plan + paid |
| Starting price | Free | — |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Desktop | Desktop |
| Platforms | macOS, Windows, Linux | macOS |
| Integrations | 8 integrations | 4 integrations |
| Features BrowserOS 0/6 · Fellou 0/6 | ||
| Browser control | Not checked yet | Not checked yet |
| Form filling | Not checked yet | Not checked yet |
| Research tasks | Not checked yet | Not checked yet |
| Human approval steps | Not checked yet | Not checked yet |
| Scheduled tasks | Not checked yet | Not checked yet |
| Team workspace | Not checked yet | Not checked yet |
| Specs | ||
| Parallel runs | Not checked yet | Not checked yet |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | BrowserOS is an open-source Chromium-based desktop browser for people who want AI agents built into everyday web browsing. Natural-language instructions can direct tasks such as clicking, typing, navigating, and completing multi-step… Read the review → |
Fellou is an AI browser for people and teams handling research, productivity, marketing, analytics, and repetitive browser-based work. It combines multi-source deep research with reports and verifiable sources, then turns natural-language… Read the review → |
Strengths and trade-offs
BrowserOS — where it wins
- Free, open-source browser with built-in AI agents
- Supports local and cloud models from multiple AI providers
- Runs on macOS, Windows, and Linux with Chrome extensions
Where it doesn't
- Detailed workflow controls are limited
- Desktop-only availability excludes mobile use
- The published plan lineup contains only one tier
Fellou — where it wins
- Multi-source research produces reports with verifiable sources
- Reviewable plans support editing, approval, and intervention
- Automates browsers, local apps, files, and scheduled workflows
Where it doesn't
- Currently documented for macOS only
- Higher tiers become expensive at $199.90 per month
- Workflow capacity depends on scheduled-task and spark limits
- BrowserOS8.8/10 · Free plan
A free desktop browser for natural-language automation, local execution, and flexible AI providers.
Visit BrowserOSFull verdict → - Fellou8.5/10 · Free plan
A Mac-focused AI browser for sourced research and reviewable workflow automation.
Visit FellouFull verdict →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update





