Enigma ChatGPT Sidebar Chrome Extension
Chats with PDFs, drafts social posts and summarizes any webpage from a sidebar with no size limit.
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 useOur 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.