01
Command everything
Open the command palette with a shortcut and search for any tool, audit, or documentation link without leaving the keyboard.
KSearch tools, audits and docs...CMD + K
Developer utilities, right where you work
Make every web page
your workbench.
Full Stack Assistant puts the everyday tools for building, testing, and inspecting websites in one focused Chrome extension.
InformationDiagnostic overlays, element inspector & technical reports
Interactive inspector
Element Info InspectorHover HUD
Clear all overlays
Diagnostic overlays
Id & Class Details
Div Dimensions
Div Order
Stack Levels
Tab Index
ARIA Roles
Access Keys
Anchors
One extension. A better browser workspace.
Small utilities that remove
the friction from dev work.
02
Test forms with intent
Fill realistic, boundary, or sanitisation test data, reveal passwords, and remove form constraints in a click.
03
See what the page is doing
Inspect DOM details, CSS variables, meta tags, tracking pixels, tables, and on-page layout data.
04
Build for every viewport
Use screen rulers, grid overlays, breakpoints, and dedicated mobile or tablet windows to validate responsive work.
05
Keep tools in view
Dock the assistant in Chrome's side panel and work alongside the page instead of reopening a disappearing popup.
A real extension, not a one-trick shortcut
A focused toolkit for
the messy middle of web work.
From a quick page audit to a responsive check, every utility is available from the popup, command palette, or side panel.
Forms and accessibility
Autofill personas, field constraints, element conversion, form reports, missing-alt outlines, and quick a11y checks.
- Mock data and boundary cases
- Validation and field controls
- Labels, ALT text, ARIA roles
Inspection and reports
Reveal DOM structure and page intelligence without opening devtools for every small question.
- ID, class, dimensions, z-index
- Links, tables, headers, colours
- Meta, Open Graph, response headers
Layout and responsive testing
Measure and visualise a page in context, then open focused testing windows at useful device sizes.
- Pixel rulers and grid overlays
- Breakpoint and viewport details
- Mobile and tablet windows
Developer essentials
Helpful browser-side utilities for the routine work around implementation and debugging.
- Epoch converter and docs search
- Tracking-pixel detection
- User-agent presets and CORS controls
Built for the browser, not another tab
Useful at the exact
moment you need it.
- 01
Open any page
Bring the extension up from the toolbar or a keyboard shortcut.
- 02
Choose a tool
Navigate by panel or type what you need into the command palette.
- 03
Stay in flow
Use it as a popup or dock it into the side panel while you work.
Ready when your next page is