A visual-inspection browser extension
Measure, inspect, compare and capture right on the page, then hand developers what they need — Arabic-first, and local to your device.
Tested in each
A live measurement on an Arabic page, zoomed on the gap itselfmeasure_two-elements--dark
Inspect
Rasd reads what the browser actually computed, not what was written in CSS: box, type, colour and accessibility for any element — then hands it to you as CSS, Tailwind or JSON.Rasd reads what the browser actually computed, not what was written in CSS — then hands it to you as CSS, Tailwind or JSON.
Capabilities
Every tool gives you a value as the browser drew it — and the images here are live captures of them, not drawings.Every tool gives you a value as the browser drew it.
Capture
An area you size precisely, an element, the visible part or the full page — from the popup, the right-click menu or shortcuts.An area you size precisely, an element, the visible part or the full page.
⇧⌘T area · ⇧⌘E element · ⇧⌘V visible · ⇧⌘S page⇧⌘T · ⇧⌘E · ⇧⌘V · ⇧⌘S
Selecting an area: its width, height and ratio as you drawcapture_area-select--dark
capture_area-select--dark
Colours
An eyedropper that reads the pixel itself, in every format, with the CSS variable it came from and its contrast on its background — plus the page palette and a full-page contrast audit.An eyedropper that reads the pixel itself, in every format, with the CSS variable it came from and its contrast on its background.
HEX · RGB · HSL · OKLCH · Tailwind
The pixel under the eyedropper, magnified twelve times, and its reading in the panel
colors_sampling--light
Compare
Split, overlay, opacity and flicker over the live page, with the share of differing pixels, exclusion of changing areas, and a PDF report.Split, overlay, opacity and flicker over the live page, with the share of differing pixels.
Split · Overlay · Opacity · Flicker
compare_split-reference--dark · compare_two-captures--dark
compare_split-reference--dark compare_two-captures--dark
Editor & redaction
Numbered notes, arrows, text and crop — and redaction baked into the image’s pixels, so it cannot be recovered from the file.
Cover · Pixelate · Blur
editor_redact--dark
Library
Captures, projects, tags, colour palettes, references and step guides, a thirty-day trash, a backup, and a passcode lock — no account and no server.Captures, projects, palettes, references and step guides, with a trash, a backup and a lock — no account and no server.
IndexedDB · chrome.storage.local
library_grid--dark
Storage used is read from the browser itself, and no copy exists anywhere else
library_grid--dark
Issues
Tied to the element with its expected and actual values, and re-checked on the live page, so you know whether it is fixed or still open.Tied to the element with its expected and actual values, and re-checked on the live page.
Expected · Actual · Open · Fixed
Handoff
PNG images and PDF reports, a step guide in four formats, a developer handoff bundle in Markdown and JSON, and a single-file share page that opens offline.PNG images and PDF reports, a step guide in four formats, a handoff bundle in Markdown and JSON, and a share page that opens offline.
PNG · PDF · ZIP · Markdown · JSON · HTML
How it works
Six steps on the page itself, each with its value — from the captures above, not numbers for show.Six steps on the page itself, each with its value from the captures above.
Privacy
Every sentence here has a place in the code that proves it or a command that measures it. No account, no server that stores your library, no usage analytics.Every sentence here has a place in the code that proves it or a command that measures it.
“Local only” as it appears in Settings from the first runprivacy_controls--dark
0network requests
Rasd’s single network exit reads the setting from disk at every request, and refuses before anything is sent.The single network exit refuses before anything is sent.
Measured in real Chrome on every local path: every extension page, every tool, capture, library and export.Measured in real Chrome on every local path.
pnpm verify:network
0permanent site permissions
Six permanent permissions, none of them a host permission. The optional ones — downloads, access to all sites for those who want it, and the two service patterns — are requested when needed and revoked from the extensions page.
A “permission without a consumer” fails the build, and the manifest’s content security policy allows only the extension and the two destinations.
pnpm verify:dist
0accounts or servers holding your library
Captures, projects, colours, references, issues and guides in IndexedDB on your device, and nothing is synced with your browser account.And nothing is synced with your browser account.
Rasd’s script in the page messages the extension and never writes to the storage of the site you visit.Rasd’s script in the page never writes to the site’s storage.
pnpm verify:dist
2optional connections
Both require you to turn off “Local only” yourself, grant the permission, and press “Send”. A report never carries the page address, its content or your library.Both require you to turn off “Local only” yourself.
Two named destinations are the only ones the manifest’s content security policy allows.Two named destinations, the only ones in the content security policy.
pnpm verify:dist
Browsers
The same package, tested in each: it loads without a warning, then every Rasd journey runs in it.The same package, tested in each.
Chrome
154.0.8037.93
Chromium 154
Tested 2026-10-02
Edge
154.0.4258.53
Chromium 154
Tested 2026-10-02
Brave
1.96.59
Chromium 154
Tested 2026-10-02
Pixel colours are exact: the eyedropper decodes the capture with ImageDecoder, not the canvas, so fingerprint farbling does not touch it
Opera
136.0.6008.80
Chromium 152
Tested 2026-10-02
Three shortcuts are reserved — assign them manually
Vivaldi
8.2.4133.80
Chromium 152
Tested 2026-10-02
Firefox
157.0
Gecko 157
Tested 2026-10-02
Its own package from the same source; does not run in private windows
Tested on macOS, with the same package in each.rasd-0.1.0.zip · 65cd1726 · 2026-10-02
One click away
The same popup in all six browsers: capture with its shortcuts, the four tools, your latest captures, and the library.The same popup in all six browsers.
popup_default--dark
Install
Version 1.0 is live on the Chrome Web Store and Firefox Add-ons; the other stores follow. Until then, try the package in any of the six browsers.Version 1.0 is live on the Chrome Web Store and Firefox Add-ons; the other stores follow.
