How do their growth rates compare?

HighlightGPT has a month-over-month growth rate of —; Miro has +1.7%.

How does pricing compare?

HighlightGPT: Paid. The extension itself is free to install, but it is not usable without your own OpenAI API key. You pay OpenAI directly for the tokens each explanation consumes, and larger context settings increase that cost. There is no separate subscription sold inside the extension. Miro: Freemium, Contact for Pricing. Freemium with three paid paths. Free covers small teams with 3 editable boards, templates, and core formats. Starter runs about $8 per member/month billed yearly with unlimited private boards and 25 AI credits per member. Business is about $20 per member/month billed yearly with workspaces, prototyping, and AI workflows. Enterprise is quoted on request with SSO, governance, and dedicated support.

What are alternatives to HighlightGPT and Miro?

Other tools in related categories include Merlin AI, Whimsical, HARPA AI, Eraser, Boardmix.

HighlightGPT vs Miro — Traffic (0 vs 30.75M), Pricing & Verdict

Open AI Tools

HighlightGPT vs Miro — Traffic (0 vs 30.75M), Pricing & Verdict | Open AI Tools

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	HighlightGPT	Miro
Official Domain	chromewebstore.google.com	miro.com
Pricing Model	Paid	Freemium, Contact for Pricing
Monthly Visits	0 (0)	30.75M (30,749,206)
MoM Traffic Delta	0 (—)	+505.1K (+1.7%)
Primary Market & Share	🌐 Global (—)	🇺🇸 United States (19.4%)
Direct Visits / mo	0	20.18M
User Rating	4.1	4.5
Supported Platforms	Browser Extension	Website

HighlightGPT

Highlight any sentence, get an instant, page-aware AI explanation

In-place explanations

Highlight a confusing sentence and receive a short explanation without leaving the page or opening another tab.

Three context levels

Choose how much surrounding page text is sent along with your selection to balance answer quality against API cost.

Automatic request trimming

When a selection plus page context exceeds the request size limit, the extension automatically lowers how much page content it ingests.

Double-click protection

Accidental highlights created by double-clicking are ignored, so the tool only fires when you deliberately select text.

Strengths & Pros

+Explanations use surrounding page text, so answers match the article rather than a generic definition
+No context switching — you stay on the page you are reading
+Adjustable context depth lets you control how much you spend per explanation
+Simple, single-purpose design with automatic handling of oversized requests