When users ask ChatGPT to proofread or edit text, it's hard to see exactly what changed. This extension adds a visual diff overlay (with ins/del highlighting) directly inside ChatGPT's interface, showing exactly what was rewritten, along with statistics like percentage rewritten and word counts.

1. User installs extension. 2. User navigates to chatgpt.com and logs into their ChatGPT account. 3. User types a proofreading prompt (e.g., 'Proofread this: [text]'). 4. ChatGPT responds with edited text. 5. User clicks the 'editGPT' button in the header to activate edit mode. 6. A statistics banner appears above the response showing % rewritten and word counts. 7. The assistant's response is replaced with a color-coded diff view showing insertions and deletions. 8. User can toggle between diff and original views, and switch between Classic and Modern diff themes.

Target users: Writers and content creators using ChatGPT for proofreading and editing / Students using ChatGPT to improve essays or text / Anyone who asks ChatGPT to rewrite, proofread, or edit text and wants to see exactly what changed

Cannot verify the companion web app (editgpt.app) independently—it may have separate paid features not reflected in the extension source
No API calls detected in extension source, so the extension performs all diff computation locally using bundled diff-match-patch library

Monetization

No paid features detected

The extension source contains zero payment-gating logic, subscription checks, license validation, Stripe/payment platform integrations, or upgrade prompts. All 'paid' keyword matches are false positives: 'pro' appears only as part of unrelated words (prototype, program, processing, problem) in comments; 'license' refers to the Apache 2.0 open-source license of the diff-match-patch library. The store description mentions a separate web app at www.editgpt.app which may have its own pricing, but the extension itself does not gate any features behind payment.

Confidence: 85
Payment platform: --
Source: AI / High
Login required: Yes
Reason: The extension injects content scripts exclusively on chatgpt.com (manifest host_permissions and content_scripts.matches). The core workflow—asking ChatGPT to proofread text and then viewing the diff overlay—requires the user to be logged into their OpenAI/ChatGPT account. The extension itself implements zero login/auth UI or code; it relies entirely on the user already being authenticated with ChatGPT.

Permission risk

Low-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

未命中敏感权限或广域站点访问规则

Publisher

SMB

editGPT

Email: [email protected]
Phone: --
Address: Chaozhou St Zhongzheng District, Taipei City 100 TW

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Permissions

Host access