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Head-to-head · AI Browser Agents

BrowserOS vs Fellou

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score BrowserOS #6 in AI Browser Agents 8.8/10 Free plan Free plan✓ 0 of 6 features Visit BrowserOS
Fellou #8 in AI Browser Agents 8.5/10 Free plan Free plan✓ 0 of 6 features Visit 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

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

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
  • 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
  • Multi-source research produces reports with verifiable sources
  • Reviewable plans support editing, approval, and intervention
  • Automates browsers, local apps, files, and scheduled workflows
Cons
  • Detailed workflow controls are limited
  • Desktop-only availability excludes mobile use
  • The published plan lineup contains only one tier
  • Currently documented for macOS only
  • Higher tiers become expensive at $199.90 per month
  • Workflow capacity depends on scheduled-task and spark limits
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 →
  1. BrowserOSAI Browser Agents 8.8Free plan
  2. FellouAI Browser Agents 8.5Free plan

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 →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update