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Underline AI

Best for small marketing teams, not large enterprises.

Checked 4 Oct 2026 Reviewed by Alex Listed since September 2024

Screenshot of Underline AI

At a glance

Starts at from $29 per month Price as published by the vendor, September 2026.
Free tier Yes, limited
Platforms Web, Chrome
Best for Small marketing teams
Not for Large enterprises with extensive content needs

4.0 out of 5

Scored by Alex after real use

Our verdict

Underline.AI streamlines content creation with AI. Best suited for those needing a versatile tool to manage daily work but too expensive for larger organizations looking for more seats and customization.

✓What it does well

VersatileOffers multiple AI templates for different content types.
EfficientEliminates writer's block with automatic content generation.
Pricing PlansFlexible pricing options to suit individual and team needs.

✕Where it falls short

Limited SeatsPro plan only allows up to five seats, not ideal for larger teams.
CustomizationAdvanced features require paid plans; free version is basic.
SEO SpecificityWhile generates SEO articles, it may lack specialized SEO optimizations in the free plan.

Key features

AI TemplatesProvides over 50 AI templates for various content types.
Chrome ExtensionAvailable as a Chrome extension for easy use on-the-go.
Yearly DiscountsAnnual plans save 20%, encouraging long-term commitment.
Advanced SEO OptimizationEnhances specific SEO keyword inclusion.

Questions about Underline AI

What is Underline AI?

Underline AI is a web and Chrome tool that streamlines content creation with AI. The vendor says it provides over 50 AI templates for different content types, generates content automatically to help with writer's block, and can produce SEO articles with specific keyword inclusion.

How much does Underline AI cost?

Underline AI has a limited free tier, and paid plans are billed annually: Lite at $29 per month with unlimited words and AI templates, Pro at $39 per month with custom templates and more seats, and Enterprise at $99 per month for large organizations with security requirements. The vendor says annual plans save 20%.

Is Underline AI good for large teams?

Toolio lists Underline AI as best for small marketing teams and not for large enterprises with extensive content needs. The reviewer notes the Pro plan only allows up to five seats and calls the tool too expensive for larger organizations looking for more seats and customization.

Does Underline AI have a Chrome extension?

Underline AI runs on the web and is also available as a Chrome extension for easy use on the go. The reviewer credits it with versatility, as it offers multiple AI templates for different content types.

What are the downsides of Underline AI?

The reviewer notes that advanced features require paid plans and the free version is basic. The Pro plan only allows up to five seats, and while it generates SEO articles, it may lack specialized SEO optimizations in the free plan. Alex scored it 4.0 out of 5.