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Enigma ChatGPT Sidebar Chrome Extension

Chats with PDFs, drafts social posts and summarizes any webpage from a sidebar with no size limit.

Checked 3 Oct 2026 Reviewed by Alex Listed since September 2024

Screenshot of Enigma ChatGPT Sidebar Chrome Extension

At a glance

Starts at Free No paid plan found on the Chrome Web Store, September 2026.
Free tier Yes
Platforms Chrome, VS Code
Best for People wanting one sidebar for PDFs, email and social posts
Not for Anyone wanting a desktop app or VS Code integration today

3.7 out of 5

Scored by Alex after real use

Our verdict

Enigma opens a ChatGPT sidebar with a keyboard shortcut and handles PDF chat, email drafting for Gmail and Outlook, webpage and Wikipedia summaries with no length limit, and platform-specific posts for Twitter, Instagram and LinkedIn. Responses can even be downloaded as a Word document. A desktop app and VS Code extension are still listed as coming soon, and the free version's reach is extended through in-app purchases.

✓What it does well

PDF chatAnswers questions about uploaded PDFs, papers or assignments.
Unlimited page summariesSummarizes webpages of any length without a size limit.
Platform-specific postsDrafts tailored posts for Twitter, Instagram and LinkedIn.

✕Where it falls short

In-app purchasesRequires in-app purchases to extend beyond the free tier.
Desktop app pendingLists its desktop app and VS Code extension as coming soon, not available yet.
Mixed ratingsAverages only 3.7 out of 5 across its ratings.

Key features

PDF chatLets you upload and question PDF documents.
Email draftingWrites and summarizes emails for Gmail and Outlook.
Word document exportDownloads any generated response as a Word document.
Text translationTranslates any highlighted text on a page.

Questions about Enigma ChatGPT Sidebar Chrome Extension

What can you do with Enigma ChatGPT Sidebar Chrome Extension?

Enigma opens a ChatGPT sidebar with a keyboard shortcut. It chats with uploaded PDFs, drafts and summarizes emails for Gmail and Outlook, summarizes webpages and Wikipedia articles with no length limit, and writes platform-specific posts for Twitter, Instagram and LinkedIn. It can also translate highlighted text and download responses as a Word document.

Is Enigma ChatGPT Sidebar Chrome Extension free?

Enigma ChatGPT Sidebar Chrome Extension is free, and Toolio found no paid plan on the Chrome Web Store as of September 2026. The reviewer notes, though, that the free version's reach is extended through in-app purchases.

Does Enigma ChatGPT Sidebar Chrome Extension work in VS Code or on desktop?

Not yet. Its desktop app and VS Code extension are both listed as coming soon, so for now Enigma works as a sidebar in Chrome. Toolio says it is not for anyone wanting a desktop app or VS Code integration today.

How does Toolio rate Enigma ChatGPT Sidebar Chrome Extension?

Enigma ChatGPT Sidebar Chrome Extension holds a Toolio score of 3.7 out of 5, given by Alex after real use on 3 Oct 2026. The reviewer also notes it averages only 3.7 out of 5 across its ratings. Its strengths are PDF chat, unlimited page summaries and platform-specific posts.

What alternatives to Enigma ChatGPT Sidebar Chrome Extension does Toolio list?

Toolio lists Hybrainer Chrome Extension, Content Assistant, AI Writing Pal and Romantic AI as alternatives. Hybrainer suggests better prompts for ChatGPT and adds a quick way to copy replies, while Content Assistant suits quick writing fixes rather than big projects. AI Writing Pal drafts content quickly but requires significant editing.

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