Explore the toolbox
52 browser tools for developers & designers — all in one extension.
Browse Store
Our Picks
Export Element
Export any element as HTML/CSS to Codepen or file.
CSS Inspector
Inspect and edit CSS styles of any element on the page.
Color Picker
Pick colors from any element using an eyedropper.
Take Screenshot
Capture screenshots (full page, visible area, selection).
Extract Images
Download all images from the page (IMG, backgrounds, SVGs).
Responsive Viewer
Preview page on different device sizes.
Development
CSS Inspector
Inspect and edit CSS styles of any element on the page.
API Tester
REST API testing tool - send GET, POST, PUT, DELETE requests.
Export Element
Export any element as HTML/CSS to Codepen or file.
Page Outliner
Visualize page layout with element outlines.
Site Stack
Detect technologies/frameworks used on the website.
Responsive Viewer
Preview page on different device sizes.
Accessibility Tools
Check accessibility issues (contrast, ARIA, etc.).
Cookie Editor
View, edit, and manage cookies.
Layout Tools
NewInspect box model, flex, and grid in real time.
AI Assistant
NewBYOK chat with any LLM, using the page as context.
Code Injection
NewInject JS, CSS, and HTML on any site per-domain.
JSON Formatter
NewFormat, minify, and validate JSON with a tree view.
Design
Typography
SEO
Layout
Media
Utility
Open Multiple URLs
Open multiple URLs in new tabs at once.
Take Screenshot
Capture screenshots (full page, visible area, selection).
Clear Browsing Data
Clear cache, cookies, history, and storage.
Email Finder
Extract email addresses from the page.
Currency Converter
Convert between currencies with live rates.
Save as PDF
Capture any webpage as a high-quality PDF document.
Webpage to Markdown
NewConvert any webpage to clean Markdown instantly.
QR Code Generator
NewGenerate QR codes for URLs, Wi-Fi, vCards, and more.
Encoder / Decoder
NewEncode and decode Base64, URL, Hex, hashes, and more.
World Clock
NewMulti-timezone clock with live updates.
Content
Data
Performance
Productivity
Measurement
Analytics
Get all 52 tools in one click
Install SuperDev Pro and use every tool right in your browser — no account needed.
Free to install · No account · Works on Chrome & Firefox