Floating DevTools

Network and Console in a floating, draggable button, without squeezing the page.

Network, Console and smart diagnostics in a floating panel on any page, with an optional AI assistant. Floating DevTools puts Network, Console and automatic diagnostics in a floating, draggable panel on top of any page — no docked DevTools window squeezing your layout. NETWORK • Every request: fetch/XHR, documents, scripts, styles, images, fonts and more • Filter by text, type or errors; sort by any column • Headers, payload, preview, response and timing details (with TTFB shown separately from download) • Copy as cURL • Compare two requests side by side: status, timing, sizes, query, headers and body (structural JSON diff) CONSOLE • Errors, warnings and logs with stack traces and source • Group equivalent messages, filter by level, origin or time period • Run JavaScript on the page • See which requests are likely related to an error, each link labeled with a confidence level INSIGHTS • Local diagnostics, no AI involved: JavaScript errors, unhandled rejections, HTTP errors, possible CORS blocks, timeouts, slow requests, heavy resources, duplicated calls, storage quota and more • Each diagnostic separates observed evidence from possible causes, with impact and recommendations • Rankings of the slowest and heaviest requests • Configurable thresholds BUG REPORTS • Generate an editable report from what was captured • Export as Markdown or JSON, or open a prefilled GitHub issue • Sensitive values are masked automatically AI ASSISTANT (optional, bring your own key) • Ask about the errors and requests on the page, or "Investigate with AI" from any error, request or diagnostic • Your API key stays in your browser and is used only by the extension • Before anything is sent, tokens, keys, passwords, emails and card numbers are masked; cookies, headers and query string values are not sent • Preview the exact context before asking; suggested code is never executed MADE TO FIT YOUR WORKFLOW • Light and dark themes, translucent mode, 11 bundled monospace fonts (including fonts designed for low vision) • English and Portuguese, following your system language by default • Alt+Shift+D toggles the panel Everything is captured and analyzed locally in your browser. Nothing leaves it unless you use the AI assistant.