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Justdone: GPT-4o AI Writing Assistant & Grammar Checker icon

Justdone Chrome Extension Analysis

AI & Writing Assistants

Store listing title: Justdone: GPT-4o AI Writing Assistant & Grammar Checker

Chrome extension ID: hmccfhejfgfjkmmmmhmlnhkoidinlaab

Justdone is a Chrome extension that provides AI-powered grammar checking, paraphrasing, text summarization, and tone adjustment. It integrates directly into tools like Google Docs, Gmail, and LinkedIn to assist users with their online communication.

Developer:justdone-extension
Version:1.5.1
Size:707KiB
Last updated:
View developer profile
External:Chrome Web StoreOfficial website

Overview

Installs

200K+

Rating

★ 3.7

262 reviews

Languages

16 locales

Includes Deutsch, English, English (United Kingdom), English (United States)...

Market analysis

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

Backed by review samples

Macro category

AI & Writing Assistants

Pricing friction

High review signal

Complaint intensity

High review signal

Listing & review signals
Observed signals from store listing text and review samples.

Listing positioning

Justdone positions itself as a comprehensive writing companion that enhances clarity, tone, and grammar across various web platforms. It promises to help users communicate more effectively in over 30 languages using real-time AI suggestions.

Inferred product pattern

An AI writing utility utilizing a trial-to-subscription model with controversial AI-humanization and detection features.

Review-backed pain points

Users report significant frustration with perceived deceptive practices, including AI detection scores that change after payment to encourage 'humanizing' features, and difficulty canceling subscriptions.

Observed feature gaps

Users noted inconsistencies in AI detection accuracy and unexpected word count limitations in plagiarism checking features.

Tags
AI Writing AssistantGrammar CheckerParaphrasing ToolText Humanizer
Target users

- Students

- Professionals

- Content Creators

- Email Communicators

Primary use cases

- Grammar and spell checking

- Rewriting and paraphrasing text

- Summarizing long documents

- Adjusting writing tone

Positive themes

- No positive review themes found in the provided sample.

Negative themes

- Deceptive AI detection and humanization results

- Difficulties with subscription cancellation

- Unexpected or hidden charges following trials

- Refusal of refund requests

Observed friction

- Payment required for meaningful usage

- Free-tier complaints detected

- Refund complaints detected

- High friction caused by unexpected charges after trial periods and difficulty managing or canceling subscriptions.

Evidence boundary: Analysis based on the store listing and a sample of 1-star reviews focusing on pricing, subscription management, and AI accuracy. The provided review sample consists exclusively of low-rating reviews, which may not represent the full sentiment distribution.
Complaint summaries
Review-backed complaint signals grouped by operational area.

Support

Complaints regarding the inability to cancel subscriptions and the refusal of refund requests.

Reliability

Users report inconsistent results regarding AI detection/humanization and errors in word count tracking.

Privacy

No privacy complaints were found in the provided samples.

Access & pricing

- Subscription model observed

- Login needed for core features

- Trial or limited free usage before paid plan

Store listing facts

Listing assets

- Screenshots: 5

- Videos: 0

- Languages: 16

Trust signals

- Privacy policy

- Developer contact

- Official website

Store metadata

- Version: 1.5.1

- Size: 707KiB

- Last updated:

Store description excerpt
Short excerpt from the public Chrome Web Store listing; full copy is available on the official store page.
Communicate with confidence wherever you write online. Justdone extension helps you write faster, clearer, and more effectively — whether you're crafting essays, sending emails, or writing reports. Powered by advanced AI, Justdone provides instant grammar suggestions in 30+ languages, improves clarity, and adjusts tone to fit your style. It’s the go-to extension for professionals, students, and anyone looking to strengthen their online communication. ➤ Key Features - Multilingual Grammar Check – Instantly spot and fix grammar and spelling errors in 30+ languages. - Smart Text Improvement – Enhance everything from single words to full documents. - Advanced Paraphrasing – Reword sentences naturally while keeping the meaning clear. - Fast Summarization – Grab the main points from any text in seconds and save time. - Clarity Boost – Turn complex ideas into simple, easy-to-read language with…

Listing SEO keywords

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

Core discovery

AI grammar checkerAI writing assistanttext paraphrasing toolAI text humanizergrammar checker extension

Comparison

Grammarly alternativeQuillbot alternative

Problem

AI detection false positivehard to cancel subscriptionAI writing scam

Alternative

GrammarlyQuillbotJasper

Similar extensions

Jump to related discovery paths:

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FAQ

What is Justdone mainly used for?
Justdone is a Chrome extension that provides AI-powered grammar checking, paraphrasing, text summarization, and tone adjustment. It integrates directly into tools like Google Docs, Gmail, and LinkedIn to assist users with their online communication.
What market signals stand out?
Established adoption with moderate review base. Last known update: 11/24/2025.
What should builders compare before entering this space?
Compare install concentration, rating quality, update recency, screenshots, developer portfolio, listing claims, and review-backed friction signals.
Is this page review-backed?
Backed by review samples. This page combines store metadata with selected review signals, while raw store metrics remain visible for comparison.

Screenshots

Justdone: GPT-4o AI Writing Assistant & Grammar Checker screenshot
Justdone: GPT-4o AI Writing Assistant & Grammar Checker screenshot
Justdone: GPT-4o AI Writing Assistant & Grammar Checker screenshot
Justdone: GPT-4o AI Writing Assistant & Grammar Checker screenshot
Justdone: GPT-4o AI Writing Assistant & Grammar Checker screenshot

Links

Website: justdone.ai

Privacy policy: https://justdone.com/legal/privacy-policy