GrammarHelper Chrome Extension Analysis

AI & Writing Assistants

Store listing title: GrammarHelper — Grammar & Spell Checker

Chrome extension ID: lgojnpjijoaionjkbgcbfenbphpapald

GrammarHelper is a Chrome extension providing inline grammar, spelling, and style suggestions. Users can trigger checks via a right-click context menu and receive explanations for errors through tooltips.

Developer:shota.katougi

Version:0.1.4

Size:73.88KiB

Last updated:08/11/2026

View developer profile

External:Chrome Web Store Official website

Overview

Installs

11

Rating

★ —

0 reviews

Languages

2 locales

Includes English, 日本語

Market analysis

Review-backed positioning, friction, and market signals for this Chrome extension.

No review samples found

Macro category

AI & Writing Assistants

Pricing friction

Low review signal

Complaint intensity

Low review signal

Listing & review signals

Observed signals from store listing text and review samples.

Listing positioning

The product is positioned as a versatile grammar and spell-checking tool that integrates with any text field on the web. It emphasizes its use of the open-source LanguageTool engine and its ability to support over 30 languages.

Inferred product pattern

API-based wrapper for the LanguageTool engine providing browser-wide writing assistance.

Review-backed pain points

Review-backed data is not available.

Observed feature gaps

No review data available to identify gaps; listing describes basic grammar and spell-check functionality.

Tags

Grammar CheckerSpell CheckWriting AssistantLanguageToolMultilingual

Target users

- Non-native English speakers

- Writers

- Bloggers

- Multilingual professionals

Primary use cases

- Professional email drafting

- Web-based content creation

- Cross-platform grammar checking in tools like Gmail and Notion

Positive themes

No positive theme data.

Negative themes

No negative theme data.

Observed friction

- No pricing details provided in the listing.

Evidence boundary: Analysis based exclusively on the public store listing data. There are no user reviews available to validate feature performance or user satisfaction.

Complaint summaries

Review-backed complaint signals grouped by operational area.

Support

Review-backed data is not available.

Reliability

Review-backed data is not available.

Privacy

Review-backed data is not available.

Access & pricing

- No clear monetization signal

- No account requirement observed

- No clear pricing signal

Store listing facts

Listing assets

- Screenshots: 5

- Videos: 0

- Languages: 2

Trust signals

- Developer contact

- Official website

Store metadata

- Version: 0.1.4

- Size: 73.88KiB

- Last updated: 08/11/2026

Listing SEO keywords

Search intent keywords

Keyword signals for evaluating how users may discover, compare, or search for this extension category.

Core discovery

grammar checker extensionLanguageTool chromemulti-language spell checkerbrowser grammar helper

Comparison

GrammarHelper vs GrammarlyLanguageTool vs ProWritingAid

Problem

how to check grammar in Notionspell checker for any websitegrammar tool for non-native speakers

Alternative

Grammarly alternativesfree grammar checker extensionLanguageTool alternatives

Similar extensions

Jump to related discovery paths:

More in tools More from this developer

Screenshots

GrammarHelper — Grammar & Spell Checker screenshot

GrammarHelper — Grammar & Spell Checker screenshot

GrammarHelper — Grammar & Spell Checker screenshot

GrammarHelper — Grammar & Spell Checker screenshot

GrammarHelper — Grammar & Spell Checker screenshot

Links

Website: dev-tools-hub.xyz

Recommended Chrome extensions

Related listings from the same category, trending peers, and the same publisher portfolio.

HeaderSmith — Modify HTTP Request & Response Headers

shota.katougi

A simple MV3 alternative to ModHeader. Add, edit & remove HTTP request & response headers by URL. Import your ModHeader rules.

Installs

95

Rating

★ 5.0

Ghost Job & Fake Listing Detector — GhostJob

shota.katougi

Detect ghost job listings on Indeed, LinkedIn, and Glassdoor. See a ghost score (0–100) for... | Not affiliated with Anthropic, PBC.

Installs

20

Rating

★ —

Screen Recorder & Screenshot App for Chrome | Scrnli

scrnli

Screen recorder for Chrome: capture, edit, share screenshots and videos instantly

Installs

1.0M+

Rating

★ 4.7

CSFloat Market Checker

CSFloat Inc.

Shows the float value, paint seed, and more of Counter-Strike (CS:GO & CS2) items on the Steam Market or Inventories

Installs

1.0M+

Rating

★ 3.9

PrintFriendly: Reader Mode, PDF Editor, Save as PDF & Screenshot

PrintFriendly

Print clean web pages, save as PDF, edit PDFs, and capture full-page screenshots. Integrates with ChatGPT, Claude, and Gemini.

Installs

1.0M+

Rating

★ 4.6

Mobile simulator - responsive testing tool

François Duprat

Smartphone and tablet simulator on computer with several models to test mobile responsive websites.

Installs

1.0M+

Rating

★ 4.9

YouTube Summary with ChatGPT & Claude

Glasp

Summarize YouTube videos, web articles, and PDFs to save time, powered by ChatGPT, Claude, Mistral AI, and Gemini.

Installs

1.0M+

Rating

★ 4.3

Dark Mode

Grephy

A global dark theme for the web.

Installs

1.0M+

Rating

★ 3.6

AIPRM for ChatGPT

AIPRM

AIPRM is your cheat code for ChatGPT. Adds a list of curated prompt templates and advanced features. Try today.

Installs

1.0M+

Rating

★ 3.9

BlockSite Block Websites & Stay Focused

BlockSite

Stay focused and boost productivity: Custom blocklist, Scheduled site blocking, and Password protection.

Installs

1.0M+

Rating

★ 4.5