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Capture and annotate screenshots 📸 Capture. Annotate. Share. All in One Click. Stop switching between your browser and external editing tools. Screenshot Annotator lets you capture, mark up, and share screenshots without ever leaving the page you're on. No uploads, no accounts, no waiting. 🎯 Six Tools for Clear Communication - Rectangle — frame key areas - Ellipse — circle problems with precision - Arrow — point exactly where it matters - Pen — freehand draw for quick sketches - Mosaic — pixelate sensitive info before sharing (bank details, passwords, phone numbers) - Text — add explanatory notes in three font sizes Each tool supports 8 colors, 4 line weights, and adjustable text sizing. Made a mistake? Ctrl+Z to undo, Ctrl+Shift+Z to redo, just like any editor you're used to. 💡 Use Cases - Bug reports — capture UI glitches, annotate with arrows and text, send to your dev team - Design feedback — circle spacing issues, suggest font changes, attach visual notes - Tutorials & docs — screenshot step-by-step and annotate with clear instructions - Team communication — highlight key info on any page and share instantly - Privacy first — mosaic out sensitive data before any screenshot leaves your machine 🌟 Why Screenshot Annotator - Zero setup — one click to activate, nothing to sign up for - Fully offline — zero network requests, your screenshots never touch a server - Ultra lightweight — only 47KB, no bloat, no ads, no tracking - Open source — code is public and auditable - Floating window — pin annotated screenshots on top of any page while you keep browsing - Multilingual — Chinese and English supported, auto-detected from your browser language - Dark UI — clean, modern dark-themed toolbar that's easy on the eyes 🔒 Privacy We collect nothing. We connect to nothing. We don't even have a server. What happens in your browser stays in your browser.
Jul 6, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.