What does Highlight This! do?

Highlight This! focuses on finding and visually tracking specific words across web pages. It is catalogued under Browser DevTools & extensions on PulseGate.

Who should use Highlight This!?

Highlight This! is a consumer product built for people who need to monitor or scan web pages for specific terms.

Is Highlight This! free?

Yes — Highlight This! is free to use.

What platforms does Highlight This! run on?

Highlight This! runs on the web and embeddable surfaces.

Is Highlight This! still active?

Unverified. Highlight This! has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

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Highlight This!

highlightthis.netBrowser DevTools & extensions

Highlight This! is a Chrome and Firefox browser extension that highlights selected words on pages you visit. Users can create colored word lists, limit them to specific sites or pages, and optionally synchronize or download external word lists.

FreeWebEmbeddable

Visit highlightthis.net

Overview

8 features

Highlight This! is a Browser DevTools & extensions project. It focuses on finding and visually tracking specific words across web pages. It is built as a consumer product for people who need to monitor or scan web pages for specific terms. Highlight This! is free to use. It runs on the web and embeddable surfaces.

Highlight This! first shipped in 2019. Key capabilities include word highlighting, custom word lists, and color assignment.

Summary written by a language model from the project’s public pages.

Word highlighting
Custom word lists
Color assignment
Site-specific rules
Page-specific rules
List synchronization
External word lists
Scheduled downloads

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSFree tierStore-verified publisher

Indexing history

What PulseGate has recorded for this listing

Indexed8 Sept · 10:29 UTC
Highlight This: finds and marks words verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Highlight This!

What does Highlight This! do?: Highlight This! focuses on finding and visually tracking specific words across web pages. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Highlight This!?: Highlight This! is a consumer product built for people who need to monitor or scan web pages for specific terms.
Is Highlight This! free?: Yes — Highlight This! is free to use.
What platforms does Highlight This! run on?: Highlight This! runs on the web and embeddable surfaces.
Is Highlight This! still active?: Unverified. Highlight This! has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
How long has Highlight This! been around?: Highlight This! first shipped in 2019.

At a glance

Platforms: Web
Languages: English
First seen: 8 Sept 2026
Built for: people who need to monitor or scan web pages for specific terms
Model: B2C
Solves: Finding and visually tracking specific words across web pages.

Registered as

Firefox Add-ons: highlightthis

Developer

Wimdeboel

Index record

Indexed: 8 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 8 Sept 2026

Identity audit (13)

Slug: highlight-this-finds-and-marks-words-deboel-eu
Lifecycle state recorded: 8 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 8 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model from page content.
Last updated: 8 Sept 2026
Canonical URL: https://highlightthis.net/

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