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- What's New In DevTools (Chrome 87)
- Jecelyn Yeen
- By Jecelyn Yeen
- Developer advocate working on Chrome DevTools at Google
- New CSS Grid debugging tools
- DevTools now has better support for CSS grid debugging!
- CSS grid debugging
- When an HTML element on your page has display: grid or display: inline-grid applied to it, you can see a grid badge next to it in the Elements panel. Click the badge to toggle the display of a grid overlay on the page.
- The new Layout pane has a Grid section offering you a number of options for viewing the grids.
- Check out the documentation to learn more.
- Chromium issue: 1047356
- New WebAuthn tab
- You can now emulate authenticators and debug the Web Authentication API with the new WebAuthn tab.
- Select More options > More tools > WebAuthn to open the WebAuthn tab.
- WebAuthn tab
- Prior to the new WebAuthn tab, there was no native WebAuthn debugging support on Chrome. Developers needed physical authenticators to test their web application with Web Authentication API.
- With the new WebAuthn tab, web developers can now emulate these authenticators, customize their capabilities, and inspect their states, without the need of any physical authenticators. This makes the debugging experience much easier.
- Check out our documentation to learn more about the WebAuthn feature.
- Chromium issue: 1034663
- Move tools between top and bottom panel
- DevTools now support moving tools in DevTools between the top and bottom panel. This way, you can view any two tools at once.
- For example, if you would like to view Elements and Sources panel at once, you can right click on the Sources panel, and select Move to bottom to move it to the bottom.
- Move to bottom
- Similarly, you can move any bottom tab to the top by right clicking on a tab and select Move to top.
- Move to top
- Chromium issue: 1075732
- Elements panel updates
- View the Computed sidebar pane in the Styles pane
- You can now toggle the Computed sidebar pane in the Styles pane.
- The Computed sidebar pane in the Styles pane is collapsed by default. Click on the button to toggle it.
- Computed sidebar pane
- Chromium issue: 1073899
- Grouping CSS properties in the Computed pane
- You can now group the CSS properties by categories in the Computed pane.
- With this new grouping feature, it will be easier to navigate in the Computed pane (less scrolling) and selectively focus on a set of related properties for CSS inspection.
- On the Elements panel, select an element. Toggle the Group checkbox to group/ungroup the CSS properties.
- Grouping CSS properties
- Chromium issues: 1096230, 1084673, 1106251
- Lighthouse 6.4 in the Lighthouse panel
- The Lighthouse panel is now running Lighthouse 6.4. Check out the release notes for a full list of changes.
- Lighthouse
- New audits in Lighthouse 6.4:
- Preload fonts. Validates if all fonts that usefont-display: optional were preloaded.
- Valid sourcemaps. Audits if a page has valid sourcemaps for large, first-party JavaScript.
- [Experimental] Large JavaScript library. Large JavaScript libraries can lead to poor performance. This audit suggests cheaper alternatives to common, large JavaScript libraries like moment.js.
- Chromium issue: 772558
- performance.mark() events in the Timings section
- The Timings section of a Performance recording now marks performance.mark() events.
- Performance.mark events
- New resource-type and url filters in the Network panel
- Use the new resource-type and url keywords in the Network panel to filter network requests.
- For example, use resource-type:image to focus on the network requests that are images.
- resource-type filter
- Check out filter requests by properties to discover more special keywords like resource-type and url.
- Chromium issues: 1121141, 1104188
- Frame details view updates
- Display COEP and COOP reporting to endpoint
- You can now view the Cross-Origin Embedder Policy (COEP) and Cross-Origin Opener Policy (COOP)reporting to endpoint under the Security & Isolation section.
- The Reporting API defines a new HTTP header, Report-To, that gives web developers a way to specify server endpoints for the browser to send warnings and errors to.
- reporting to endpoint
- Read this article to learn more about how to enable COEP and COOP and make your website "cross-origin isolated".
- Chromium issue: 1051466
- Display COEP and COOP report-only mode
- DevTools now displays report-only label for COEP and COOP that are set to report-only mode.
- report-only label
- Watch this video to learn about how to prevent information leaks and enable COOP and COEP in your website.
- Chromium issue: 1051466
- Deprecation of Settings in the More tools menu
- The Settings in the More tools menu has been deprecated. Open the Settings from the main panel instead.
- Settings in the main panel
- Chromium issue: 1121312
- Experimental features
- Caution: Experimental features are still under development and subject to change.
- View and fix color contrast issues in the CSS Overview panel
- To enable this experiment, check the CSS Overview checkbox under Settings > Experiments.
- CSS Overview panel now displays a list of low color contrast texts of your page.
- In this example, the demo page has a low color contrast issue. Click on the issue, you can view a list of elements that have the issue.
- Low color contrast issues
- Click on an element in the list to open the element in Elements panel. DevTools provides auto color suggestion to help you fix the low contrast text.
- Chromium issue: 1120316
- Customize keyboard shortcuts in DevTools
- To enable this experiment, check the Enable keyboard shortcut editor checkbox under Settings > Experiments.
- You can now customize the keyboard shortcuts for your favourite commands in DevTools.
- Go to Settings > Shortcuts, hovering on a command and click the Edit button (pen icon) to customize the keyboard shortcut.
- Customize keyboard shortcuts
- To reset all shortcuts, click on Restore default shortcuts.
- Chromium issue: 174309
- Feedback
- Was this page helpful?
- Yes
- No
- To discuss the new features and changes in this post, or anything else related to DevTools:
- File definite bug reports and feature requests at Chromium Bugs.
- Discuss possible features, changes, and bugs on the Mailing List.
- Get help on how to use DevTools on Stack Overflow.
- Tweet us at @ChromeDevTools.
- File bugs on this document in the Web Fundamentals repository.
- Consider Canary
- If you're on Mac or Windows, consider using Chrome Canary as your default development browser. Canary gives you access to the latest DevTools features.
- Note: Canary is released as soon as its built, without testing. This means that Canary breaks about once-a-month. It's usually fixed within a day. You can go back to using Chrome Stable while Canary is broken.
- Discover DevTools features
- Below is a list of everything that's been covered in the What's New In DevTools series.
- Chrome 88
- Faster DevTools startup
- New CSS angle visualization tools
- Emulate unsupported image types
- Simulate storage quota size in the Storage pane
- New Web Vitals lane in the Performance panel
- Report CORS errors in the Network panel
- Cross-origin isolation information in the Frame details view
- New Web Workers information in the Frame details view
- Display opener frame details for opened windows
- Open Network panel from the Service Workers pane
- Copy property value
- Copy stacktrace for network initiator
- Preview Wasm variable value on mouseover
- Evaluate Wasm variable in the Console
- Consistent units of measurement for file/memory sizes
- Highlight pseudo elements in the Elements panel
- [Experimental] CSS Flexbox debugging tools
- [Experimental] Customize chords keyboard shortcuts
- Chrome 87
- New CSS Grid debugging tools
- New WebAuthn tab
- Move tools between top and bottom panel
- New Computed sidebar pane in the Styles pane
- Grouping CSS properties in the Computed pane
- Lighthouse 6.3 in the Lighthouse panel
- performance.mark() events in the Timings section
- New resource-type and url filters in the Network panel
- Frame details view updates
- Deprecation of Settings in the More tools menu
- [Experimental] View and fix color contrast issues in the CSS Overview panel
- [Experimental] Customize keyboard shortcuts in DevTools
- Chrome 86
- New Media panel
- Capture node screenshots via Elements panel context menu
- Issues tab updates
- Emulate missing local fonts
- Emulate inactive users
- Emulate prefers-reduced-data
- Support for new JavaScript features
- Lighthouse 6.2 in the Lighthouse panel
- Deprecation of “other origins” listing in the Service Workers pane
- Show coverage summary for filtered items
- New frame details view in Application panel
- Accessible color suggestion in the Styles pane
- Reinstate Properties pane in the Elements panel
- Human-readable X-Client-Data header values in the Network panel
- Auto-complete custom fonts in the Styles pane
- Consistently display resource type in Network panel
- Clear buttons in the Elements and Network panels
- Chrome 85
- Style editing for CSS-in-JS frameworks
- Lighthouse 6 in the Lighthouse panel
- First Meaningful Paint (FMP) deprecation
- Support for new JavaScript features
- New app shortcut warnings in the Manifest pane
- Service worker respondWith events in the Timing tab
- Consistent display of the Computed pane
- Bytecode offsets for WebAssembly files
- Line-wise copy and cut in Sources Panel
- Console settings updates
- Performance panel updates
- New icons for breakpoints, conditional breakpoints, and logpoints
- Chrome 84
- Fix site issues with the new Issues tab
- View accessibility information in the Inspect Mode tooltip
- Performance panel updates
- More accurate promise terminology in the Console
- Styles pane updates
- Deprecation of the Properties pane in the Elements panel
- App shortcuts support in the Manifest pane
- Chrome 83
- Emulate vision deficiencies
- Emulate locales
- Cross-Origin Embedder Policy (COEP) debugging
- New icons for breakpoints, conditional breakpoints, and logpoints
- View network requests that set a specific cookie
- Dock to left from the Command Menu
- The Settings option in the Main Menu has moved
- The Audits panel is now the Lighthouse panel
- Delete all Local Overrides in a folder
- Updated Long Tasks UI
- Maskable icon support in the Manifest pane
- Chrome 82
- Chrome 82 was cancelled.
- Chrome 81
- Moto G4 support in Device Mode
- Cookie-related updates
- More accurate web app manifest icons
- Hover over CSS content properties to see unescaped values
- Source map errors in the Console
- Setting for disabling scrolling past the end of a file
- Chrome 80
- Support for let and class redeclarations in the Console
- Improved WebAssembly debugging
- Request Initiator Chains in the Initiator tab
- Highlight the selected network request in the Overview
- URL and path columns in the Network panel
- Updated User-Agent strings
- New Audits panel configuration UI
- Per-function or per-block code coverage modes
- Code coverage must now be initiated by a page reload
- Chrome 79
- Debug why a cookie was blocked
- View cookie values
- Simulate different prefers-color-scheme and prefers-reduced-motion preferences
- Code coverage updates
- Debug why a network resource was requested
- Console and Sources panels respect indentation preferences again
- New shortcuts for cursor navigation
- Chrome 78
- Multi-client support in the Audits panel
- Payment Handler debugging
- Lighthouse 5.2 in the Audits panel
- Largest Contentful Paint in the Performance panel
- File DevTools issues from the Main Menu
- Chrome 77
- Copy element styles
- Visualize layout shifts
- Lighthouse 5.1 in the Audits panel
- OS theme syncing
- Keyboard shortcut for opening the Breakpoint Editor
- Prefetch cache in the Network panel
- Private properties when viewing objects
- Notifications and push messages in the Application panel
- Chrome 76
- Autocomplete with CSS values
- A new UI for network settings
- WebSocket messages in HAR exports
- HAR import and export buttons
- Real-time memory usage
- Service worker registration port numbers
- Inspect Background Fetch and Background Sync events
- Puppeteer for Firefox
- Chrome 75
- Meaningful presets when autocompleting CSS functions
- Clear site data from the Command Menu
- View all IndexedDB databases
- View a resource's uncompressed size on hover
- Inline breakpoints in the Breakpoints pane
- IndexedDB and Cache resource counts
- Setting for disabling the detailed Inspect tooltip
- Setting for toggling tab indentation in the Editor
- Chrome 74
- Highlight all nodes affected by CSS property
- Lighthouse v4 in the Audits panel
- WebSocket binary message viewer
- Capture area screenshot in the Command Menu
- Service worker filters in the Network panel
- Performance panel updates
- Long tasks in Performance panel recordings
- First Paint in the Timing section
- Bonus tip: Shortcut for viewing RGB and HSL color codes (video)
- Chrome 73
- Logpoints
- Detailed tooltips in Inspect Mode
- Export code coverage data
- Navigate the Console with a keyboard
- AAA contrast ratio line in the Color Picker
- Save custom geolocation overrides
- Code folding
- Frames tab renamed to Messages tab
- Bonus tip: Network panel filtering by property (video)
- Chrome 72
- Visualize performance metrics in the Performance panel
- Highlight text nodes in the DOM Tree
- Copy the JS path to a DOM node
- Audits panel updates, including a new audit that detects JS libraries and new keywords for accessing the Audits panel from the Command Menu
- Bonus tip: Use Device Mode to inspect media queries (video)
- Chrome 71
- Hover over a Live Expression result to highlight a DOM node
- Store DOM nodes as global variables
- Initiator and priority information now in HAR imports and exports
- Access the Command Menu from the Main Menu
- Picture-in-Picture breakpoints
- Bonus tip: Use monitorEvents() to log a node's fired events in the Console (video)
- Chrome 70
- Live Expressions in the Console
- Highlight DOM nodes during Eager Evaluation
- Performance panel optimizations
- More reliable debugging
- Enable network throttling from the Command Menu
- Autocomplete Conditional Breakpoints
- Break on AudioContext events
- Debug Node.js apps with ndb
- Bonus tip: Measure real world user interactions with the User Timing API
- Chrome 68
- Eager Evaluation
- Argument hints
- Function autocompletion
- ES2017 keywords
- Lighthouse 3.0 in the Audits panel
- BigInt support
- Adding property paths to the Watch pane
- "Show timestamps" moved to Settings
- Bonus tip: Lesser-known Console methods (video)
- Chrome 67
- Search across all network headers
- CSS variable value previews
- Copy as fetch
- New audits, desktop configuration options, and viewing traces
- Stop infinite loops
- User Timing in the Performance tabs
- JavaScript VM instances clearly listed in the Memory panel
- Network tab renamed to Page tab
- Dark theme updates
- Certificate transparency information in the Security panel
- Site isolation features in the Performance panel
- Bonus tip: Layers panel + Animations Inspector (video)
- Chrome 66
- Blackboxing in the Network panel
- Auto-adjust zooming in Device Mode
- Pretty-printing in the Preview and Response tabs
- Previewing HTML content in the Preview tab
- Local Overrides support for styles inside of HTML
- Bonus tip: Blackbox framework scripts to make Event Listener Breakpoints more useful
- Chrome 65
- Local Overrides
- New accessibility tools
- The Changes tab
- New SEO and performance audits
- Multiple recordings in the Performance panel
- Reliable code stepping with workers in async code
- Bonus tip: Automate DevTools actions with Puppeteer (video)
- Chrome 64
- Performance Monitor
- Console Sidebar
- Group similar Console messages
- Bonus tip: Toggle hover pseudo-class (video)
- Chrome 63
- Multi-client remote debugging support
- Workspaces 2.0
- 4 new audits
- Simulate push notifications with custom data
- Trigger background sync events with custom tags
- Bonus tip: Event listener breakpoints (video)
- Chrome 62
- Top-level await in the Console
- New screenshot workflows
- CSS Grid highlighting
- A new Console API for querying objects
- New Console filters
- HAR imports in the Network panel
- Previewable cache resources
- More predictable cache debugging
- Block-level code coverage
- Chrome 61
- Mobile device throttling simulation
- View storage usage
- View when a service worker cached responses
- Enable the FPS meter from the Command Menu
- Set mousewheel behavior to zoom or scroll
- Debugging support for ES6 modules
- Chrome 60
- New Audits panel
- 3rd-Party Badges
- A new gesture for Continue To Here
- Step into async
- More informative object previews in the Console
- More informative context selection in the Console
- Real-time updates in the Coverage tab
- Simpler network throttling options
- Async stacks on by default
- Chrome 59
- CSS and JS code coverage
- Full-page screenshots
- Block requests
- Step over async await
- Unified Command Menu
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- Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
- Last updated 2020-11-20 UTC.
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