According to AlphaMoat, as of 2026-09, the Chrome extension Cero has 25 users (+19% MoM), rated 5 (7 reviews) — ranked #6,909 of 9,324 AI browser extensions, and #543 of 744 in Writing.
What is Cero
✨ Cero is your AI-powered LinkedIn personal branding assistant Build your LinkedIn presence without staring at a blank screen.
Cero is an AI-powered LinkedIn assistant that helps professionals create high-quality content directly inside LinkedIn. Generate posts, improve drafts, rewrite content in your tone, and create engaging comments without switching tabs or using external tools.
What Cero helps you do
Write LinkedIn posts faster
Turn rough ideas into polished LinkedIn posts designed for engagement, clarity, and professional positioning.
Generate meaningful comments
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Create thoughtful comments that help you engage consistently and grow your visibility on LinkedIn.
Match your writing style
Adjust tone, structure, and voice to create content that sounds natural and aligned with your personal brand.
Stay inside LinkedIn
Cero works directly within the LinkedIn experience, making content creation faster and more seamless.
Beat writer’s block
Get ideas, hooks, rewrites, and structured drafts whenever you need inspiration.
Designed for
* Founders * Consultants * Job seekers * Personal brands * B2B marketers
Core Features
* AI LinkedIn post generation * Comment assistant * Tone and style customization * Content rewriting * Hook and CTA suggestions * In-platform writing experience * Fast workflow with minimal switching
Why professionals use Cero
Consistent content builds visibility, authority, and opportunities. Cero helps reduce the friction of creating LinkedIn content so you can focus on sharing ideas and growing your network.
Compliance-Friendly Notes
This extension assists with content generation and editing. Users remain responsible for reviewing and publishing their own content on LinkedIn.
Extension profile
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+ CompareData month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.