Spec Sketch icon

Spec Sketch

by ymmy4989 · Tools
Manifest V3 Free
View in Chrome Web Store Data as of 21 Oct 2026

SpecSketch lets you easily create screenshots with numbered elements on a webpage.

Users
11
+6 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#198K
#166K among extensions
Version
1.1.0
updated 15 Oct 2025

Users

monthly, 13 months
0611Oct 2025May 2026Oct 2026
Latest, 21 Oct 2026: 11 usersMove the mouse over the chart for any month

Ratings count

monthly, 13 months
001Oct 2025May 2026Oct 2026
Latest, 21 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Spec Sketch

Numbered badges and annotations on UI, with one-click full/viewport screenshots. Spec Sketch lets you click elements on a page to overlay outlines and numbered badges, then add comments and other annotations fast. Appearance (color, shape, size, label format), visibility, position, groups, and comments are all edited from the side panel—clear and immediate, with changes applied instantly. It supports full-page and viewport captures, exporting images with annotations baked in for quick sharing across your workflow. 🧩 What you can do • 🖱 Click to select: pick an element to show an outline + numbered badge (click again to unselect) • 🛠 Side-panel edits: adjust color / shape / size / label format / visibility / position / groups / comments in one place • ↕ Reorder: tidy up the sequence; collapse groups to focus • 📸 Capture: choose Full Page or Viewport; export PNG/JPEG with quality and scale options • 💾 Auto-restore: page-specific annotations are saved and redrawn on revisit • 🎨 Theme: Light / Dark / Device (follows OS/browser setting) 🎯 Primary use cases • 📐 Design reviews: make feedback precise with numbered callouts • ✅ UAT: embed annotations in each step’s screenshot to reduce misses • 🐞 Bug reports: share “what you see” evidence aligned with repro steps • 📄 UI specs: pair element definitions with comments for efficient reviews 📦 Import / Export (JSON) • Export/import annotations per page • During import, anchors ({ kind, version, value }) are matched; duplicates are safely skipped, and the page’s visual settings take precedence 🔐 Permissions & data (highlights) • Storage: uses chrome.storage.local; data stays on device, not sent externally • Output: generated images are saved via the Downloads API ⚠ Support & limitations • Not available on internal pages like chrome:// • Very long pages or image-heavy pages may occasionally fail due to memory limits • Large DOM changes can break matches with past selections

Growth

WindowUsersChangeRatingsRating
7 days+5+83.3%00.00
30 days+6+120.0%00.00
6 months+9+450.0%00.00
1 year+8+266.7%00.00

Version history

2 versions recorded
1.1.015 Oct 2025
1.0.030 Sep 2025

Details

Category
Tools
First seen
30 Sep 2025
Size
175 KB
Languages
en, ja
Pricing
Free
Extension ID
njpkjlinikfhigfhiiiaffloinaofacd

Permissions and risk

Elevated riskimpact 4, likelihood 2
Permissions
sidePanelscriptingstoragetabsdebuggerdownloads
Site access
<all_urls>
Can read and change data on every website you visit.

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