Overview
Built-in developer tools for Kernel Browser — console, network, DOM, storage, CSS inspector, and more.
Kernel DevTools adds a full suite of developer tools directly into your browser's DevTools panel — everything you need to build, debug, and audit web apps, without switching between tabs or installing multiple extensions. ── TOOLS INCLUDED ── 🌐 Network Inspector View every request made by the page. Filter by type (Fetch/XHR, JS, CSS, WebSocket), inspect request and response headers, preview response bodies, and check timing — all in one place. 🖥 Console Full console with timestamps, source file links, and log level filtering. Evaluate JavaScript live with the built-in JS Eval bar. Never lose a log again. 🎭 Mock API Interceptor Intercept any network request and return a custom response — no backend or proxy needed. Match by prefix, exact URL, or regex. Set status code, response body, and artificial delay. Perfect for testing edge cases and error states. 🔒 Security Suite Audit any site's HTTP security headers (HSTS, CSP, X-Frame-Options, Referrer-Policy, and more) with instant A–F grading. Spot missing or misconfigured headers at a glance. 📜 Certificate Inspector View the full TLS certificate for any site — protocol version, key algorithm, validity dates, issuer, and Subject Alternative Names. No more digging through browser certificate dialogs. 💾 Storage Editor Browse, edit, add, and delete localStorage, sessionStorage, and cookies in a clean table view. Click any key to edit its value inline and save instantly. 🔌 WebSocket Monitor Capture and inspect every WebSocket message sent and received — direction, payload, size, and timestamp. Essential for debugging real-time apps. 🛡 Tracker Map See every third-party tracker loaded by the page — analytics, ad networks, fingerprinting scripts — categorised and counted. 🎨 CSS Inspector Inspect and live-edit computed styles, applied rules, and CSS variables on any element. ⚡ Performance Timeline Visualise page load performance: resource timing, long tasks, and paint events in a scrollable flame chart. 🌍 DNS Leak Checker Verify your DNS queries are not leaking outside your VPN or proxy. ── WHY KERNEL DEVTOOLS ── ✔ Free to use — core tools are always free ✔ No tracking, no analytics, no data collection ✔ Everything runs locally in your browser — no data ever leaves your device ✔ One extension replaces a dozen bookmarklets and separate tools ✔ Works on any website, any framework Built for developers who want their tools fast, private, and always available.
Details
- Version1.31.1
- UpdatedAugust 15, 2026
- Size185KiB
- LanguagesEnglish
- DeveloperWebsite
Email
peterjoao19@gmail.com - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
Kernel DevTools has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
Kernel DevTools handles the following:
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
