Ideas · 8 min read
25 Chrome Extension Ideas You Can Build with AI in 2026
Out of ideas? Here are 25 Chrome extension concepts — productivity, content, dev tools, fun — you can ship with a single AI prompt.
The best way to learn an AI extension builder is to ship a small extension end-to-end. Here are 25 ideas, grouped by category, that all fit in a single starter prompt.
Productivity
- Tab grouper that bundles tabs by domain on demand.
- Focus timer that hides distracting elements on chosen sites.
- Quick-notes side panel synced to chrome.storage.
- Clipboard history with search.
- Meeting joiner that detects calendar links and one-clicks them.
Content & reading
- Article summarizer that calls an LLM on the current tab.
- Reading-mode toggle for any site.
- Inline dictionary on double-click.
- Highlighter that saves snippets to a notes panel.
- RSS-style feed reader for sites you visit often.
Developer tools
- JSON formatter that beautifies any JSON tab.
- Color picker that grabs hex/HSL from any pixel.
- Font inspector for any element.
- Cookie viewer/editor for the current site.
- Local-storage explorer with import/export.
Site customization
- YouTube Shorts hider.
- Twitter/X 'For You' tab remover.
- LinkedIn feed silencer.
- Reddit old-design redirect.
- Custom CSS injector per domain.
Fun & utility
- New-tab quote of the day.
- Pomodoro counter in the toolbar badge.
- Tab-title typo fixer.
- Quick-currency converter from selected text.
- Screenshot tool with annotations.
Pick one, paste it into ManifestGo as a prompt, and you'll have a working extension in under five minutes.