What's New In DevTools (Chrome 100)
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Chrome 100
Here’s to the 100th Chrome version! Chrome DevTools will continue to provide reliable tools for developers to build on the web. Take a moment to click around in the What’s New tab to celebrate the milestones.
As usual, you can watch the latest What’s New in DevTools video by clicking on the image.
View and edit @supports at rules in the Styles pane
You can now view and edit the CSS @supports
at-rules in the Styles pane. These changes make it easier to experiment with the at-rules in real time. Open this demo page, inspect the <div class=”box”>
element, view the @supports
at-rules in the Styles pane. Click on the rule’s declaration to edit it.
Chromium issues: 1222574, 1222573
Recorder panel improvements
Support common selectors by default
When determining an unique selector during recording, the Recorder panel now automatically prefers elements with the following attributes:
- data-testid
- data-test
- data-qa
- data-cy
- data-test-id
- data-qa-id
- data-testing
The attributes above are common selectors used in test automation.
For example, start a new recording with this demo page. Fill in an email address and observe the selector value.
Since the email element has data-testid
defined, it’s used as the selector automatically instead of the id
or class
attributes.
Customize the recording’s selector
You can customize the selector of a recording if you are not using the common selectors.
For example, this demo page uses the data-automate
attribute as the selector. start a new recording and enter the data-automate
as the selector attribute. Fill in an email address and observe the selector value ([data-automate=email-address]
).
Rename a recording
You can now rename a recording in the Recorder panel with the edit button (pencil icon) next to the recording’s title.
Preview class/function properties on hover
You can now hover over a class or function in the Sources panel during debugging to preview its properties. Previously, it only showed the function name and a link to its location in the source code.
Chromium issue: 1049947
Partially presented frames in the Performance panel
Performance recording now displays a new frame category "Partially presented frames" in the Frames timeline.
Previously, the Frames timeline visualizes any frames with delayed main-thread work as "dropped frames". However, there are cases where some frames may still produce visual updates (e.g. scrolling) driven by the compositor thread.
This leads to user confusion because the screenshots of these “Dropped frames” are still reflecting visual updates.
The new "Partially presented frames" aims to indicate more intuitively that although some content is not presented timely in the frame, but the issue is not so severe as to block visual updates altogether.
Chromium issue: 1261130
Miscellaneous highlights
These are some noteworthy fixes in this release:
- Updated iPhone user agent strings for emulated devices. All iPhone versions after 5 have a user-agent string with iPhone OS 13_2_3. (1289553)
- You can now save snippet as a JavaScript file directly. Previously, you needed to append
.js
file extension manually. (1137218) - The Sources panel now correctly displays scope variable names when debugging with source map. Previously, the Sources panel displays minified scope variable names despite source map being provided. (1294682)
- The Sources panel now restores scroll position correctly on page load. Previously, the position was not restored correctly causing inconvenience in debugging. (1294422)
Download the preview channels
Consider using the Chrome Canary, Dev or Beta as your default development browser. These preview channels give you access to the latest DevTools features, test cutting-edge web platform APIs, and find issues on your site before your users do!
Getting in touch with the Chrome DevTools team
Use the following options to discuss the new features and changes in the post, or anything else related to DevTools.
- Submit a suggestion or feedback to us via crbug.com.
- Report a DevTools issue using the More options > Help > Report a DevTools issues in DevTools.
- Tweet at @ChromeDevTools.
- Leave comments on our What's new in DevTools YouTube videos or DevTools Tips YouTube videos.
What's New in DevTools
A list of everything that has been covered in the What's New In DevTools series.
Chrome 112
- Recorder updates
- Recorder replay extensions
- Record with pierce selectors
- Export recordings as Puppeteer scripts with Lighthouse analysis
- Get extensions for Recorder
- Elements > Styles updates
- CSS documentation in the Styles pane
- CSS nesting support
- Marking logpoints and conditional breakpoints in the Console
- Ignore irrelevant scripts during debugging
- JavaScript Profiler deprecation started
- Emulate reduced contrast
- Lighthouse 10
- Miscellaneous highlights
Chrome 111
- Debugging HD color with the Styles pane
- Enhanced breakpoint UX
- Customizable Recorder shortcuts
- Better syntax highlight for Angular
- Reorganize caches in the Application panel
- Miscellaneous highlights
Chrome 110
- Clearing Performance Panel on reload
- Recorder updates
- View and highlight the code of your user flow in the Recorder
- Customize selector types of a recording
- Edit user flow while recording
- Automatic in-place pretty print
- Better syntax highlight and inline preview for Vue, SCSS and more
- Ergonomic and consistent Autocomplete in the Console
- Miscellaneous highlights
Chrome 109
- Recorder: Copy as options for steps, in-page replay, step’s context menu
- Show actual function names in performance’s recordings
- New keyboard shortcuts in the Console & Sources panel
- Improved JavaScript debugging
- Miscellaneous highlights
- [Experimental] Enhanced UX in managing breakpoints
- [Experimental] Automatic in-place pretty print
Chrome 108
- Hints for inactive CSS properties
- Auto-detect XPath and text selectors in the Recorder panel
- Step through comma-separated expressions
- Improved Ignore list setting
- Miscellaneous highlights
Chrome 107
- Customize keyboard shortcuts in DevTools
- Toggle light and dark themes with keyboard shortcut
- Highlight C/C++ objects in the Memory Inspector
- Support full initiator information for HAR import
- Start DOM search after pressing
Enter
- Display
start
andend
icons foralign-content
CSS flexbox properties - Miscellaneous highlights
Chrome 106
- Group files by Authored / Deployed in the Sources panel
- Linked stack traces for asynchronous operations
- Automatically ignore known third-party scripts
- Improved call stack during debugging
- Hiding ignore-listed sources in the Sources panel
- Hiding ignore-listed files in the Command Menu
- New Interactions track in the Performance panel
- LCP timings breakdown in the Performance Insights panel
- Auto-generate default name for recordings in the Recorder panel
- Miscellaneous highlights
Chrome 105
- Step-by-step replay in the Recorder
- Support mouse over event in the Recorder panel
- Largest Contentful Paint (LCP) in the Performance insights panel
- Identify flashes of text (FOIT, FOUT) as potential root causes for layout shifts
- Protocol handlers in the Manifest pane
- Top layer badge in the Elements panel
- Attach Wasm debugging information at runtime
- Support live edit during debugging
- View and edit @scope at rules in the Styles pane
- Source map improvements
- Miscellaneous highlights
Chrome 104
- Restart frame during debugging
- Slow replay options in the Recorder panel
- Build an extension for the Recorder panel
- Group files by Authored / Deployed in the Sources panel
- New User Timings track in the Performance insights panel
- Reveal assigned slot of an element
- Simulate hardware concurrency for Performance recordings
- Preview non-color value when autocompleting CSS variables
- Identify blocking frames in the Back/forward cache pane
- Improved autocomplete suggestions for JavaScript objects
- Source maps improvements
- Miscellaneous highlights
Chrome 103
- Capture double-click and right-click events in the Recorder panel
- New timespan and snapshot mode in the Lighthouse panel
- Improved zoom control in the Performance Insights panel
- Confirm to delete a performance recording
- Reorder panes in the Elements panel
- Picking a color outside of the browser
- Improved inline value preview during debugging
- Support large blobs for virtual authenticators
- New keyboard shortcuts in the Sources panel
- Source maps improvements
Chrome 102
- Preview feature: New Performance insights panel
- New shortcuts to emulate light and dark themes
- Improved security on the Network Preview tab
- Improved reloading at breakpoint
- Console updates
- Cancel user flow recording at the start
- Display inherited highlight pseudo-elements in the Styles pane
- Miscellaneous highlights
- [Experimental] Copy CSS changes
- [Experimental] Picking color outside of browser
Chrome 101
- Import and export recorded user flows as a JSON file
- View cascade layers in the Styles pane
- Support for the hwb() color function
- Improved the display of private properties
- Miscellaneous highlights
- [Experimental] New timespan and snapshot mode in the Lighthouse panel
Chrome 100
- View and edit @supports at rules in the Styles pane
- Support common selectors by default
- Customize the recording’s selector
- Rename a recording
- Preview class/function properties on hover
- Partially presented frames in the Performance panel
- Miscellaneous highlights
Chrome 99
- Throttling WebSocket requests
- New Reporting API pane in the Application panel
- Support wait until element is visible/clickable in the Recorder panel
- Better console styling, formatting and filtering
- Debug Chrome extension with source map files
- Improved source folder tree in the Sources panel
- Display worker source files in the Sources panel
- Chrome’s Auto Dark Theme updates
- Touch-friendly color-picker and split pane
- Miscellaneous highlights
Chrome 98
- Preview feature: Full-page accessibility tree
- More precise changes in the Changes tab
- Set longer timeout for user flow recording
- Ensure your pages are cacheable with the Back/forward cache tab
- New Properties pane filter
- Emulate the CSS forced-colors media feature
- Show rulers on hover command
- Support
row-reverse
andcolumn-reverse
in the Flexbox editor - New keyboard shortcuts to replay XHR and expand all search results
- Lighthouse 9 in the Lighthouse panel
- Improved Sources panel
- Miscellaneous highlights
- [Experimental] Endpoints in the Reporting API pane
Chrome 97
- Preview feature: New Recorder panel
- Refresh device list in Device Mode
- Autocomplete with Edit as HTML
- Improved code debugging experience
- Syncing DevTools settings across devices
Chrome 96
- Preview feature: New CSS Overview panel
- Restored and improved CSS length edit and copy experince
- Emulate the CSS prefers-contrast media feature
- Emulate the Chrome’s Auto Dark Theme feature
- Copy declarations as JavaScript in the Styles pane
- New Payload tab in the Network panel
- Improved the display of properties in the Properties pane
- Option to hide CORS errors in the Console
- Proper
Intl
objects preview and evaluation in the Console - Consistent async stack traces
- Retain the Console sidebar
- Deprecated Application cache pane in the Application panel
- [Experimental] New Reporting API pane in the Application panel
Chrome 95
- New CSS length authoring tools
- Hide issues in the Issues tab
- Improved the display of properties
- Lighthouse 8.4 in the Lighthouse panel
- Sort snippets in the Sources panel
- New links to translated release notes and report a translation bug
- Improved UI for DevTools command menu
Chrome 94
- Use DevTools in your preferred language
- New Nest Hub devices in the Device list
- Origin trials in the Frame details view
- New CSS container queries badge
- New checkbox to invert the network filters
- Upcoming deprecation of the Console sidebar
- Display raw
Set-Cookies
headers in the Issues tab and Network panel - Consistent display native accessors as own properties in the Console
- Proper error stack traces for inline scripts with #sourceURL
- Change color format in the Computed pane
- Replace custom tooltips with native HTML tooltips
- [Experimental] Hide issues in the Issues tab
Chrome 93
- Editable CSS container queries in the Styles pane
- Web bundle preview in the Network panel
- Attribution Reporting API debugging
- Better string handling in the Console
- Improved CORS debugging
- Lighthouse 8.1
- New note URL in the Manifest pane
- Fixed CSS matching selectors
- Pretty-printing JSON responses in the Network panel
Chrome 92
- CSS grid editor
- Support for
const
redeclarations in the Console - Source order viewer
- New shortcut to view frame details
- Enhanced CORS debugging support
- Rename XHR label to Fetch/XHR
- Filter Wasm resource type in the Network panel
- User-Agent Client Hints for devices in the Network conditions tab
- Report Quirks mode issues in the Issues tab
- Include Compute Intersections in the Performance panel
- Lighthouse 7.5 in the Lighthouse panel
- Deprecated "Restart frame" context menu in the call stack
- [Experimental] Protocol monitor
- [Experimental] Puppeteer Recorder
Chrome 91
- Web Vitals information pop up
- New Memory inspector
- Visualize CSS scroll-snap
- New badge settings pane
- Enhanced image preview with aspect ratio information
- New network conditions button with options to configure
Content-Encoding
s - shortcut to view computed value
accent-color
keyword- Categorize issue types with colors and icons
- Delete Trust tokens
- Blocked features in the Frame details view
- Filter experiments in the Experiments setting
- New
Vary Header
column in the Cache storage pane - Support JavaScript private brand check
- Enhanced support for breakpoints debugging
- Support hover preview with
[]
notation - Improved outline of HTML files
- Proper error stack traces for Wasm debugging
Chrome 90
- New CSS flexbox debugging tools
- New Core Web Vitals overlay
- Moved issue count to the Console status bar
- Report Trusted Web Activity issues
- Format strings as (valid) JavaScript string literals in the Console
- New Trust Tokens pane in the Application panel
- Emulate the CSS color-gamut media feature
- Improved Progressive Web Apps tooling
- New
Remote Address Space
column in the Network panel - Performance improvements
- Display allowed/disallowed features in the Frame details view
- New
SameParty
column in the Cookies pane - Deprecated non-standard
fn.displayName
support - Deprecation of
Don't show Chrome Data Saver warning
in the Settings menu - [Experimental] Automatic low-contrast issue reporting in the Issues tab
- [Experimental] Full accessibility tree view in the Elements panel
Chrome 89
- Debugging support for Trusted Types violations
- Capture node screenshot beyond viewport
- New Trust Tokens tab for network requests
- Lighthouse 7 in the Lighthouse panel
- Support forcing the CSS
:target
state - New shortcut to duplicate element
- Color pickers for custom CSS properties
- New shortcuts to copy CSS properties
- New option to show URL-decoded cookies
- Clear only visible cookies
- New option to clear third-party cookies in the Storage pane
- Edit User-Agent Client Hints for custom devices
- Persist "record network log" setting
- View WebTransport connections in the Network panel
- "Online" renamed to "No throttling"
- New copy options in the Console, Sources panel, and Styles pane
- New Service Workers information in the Frame details view
- Measure Memory information in the Frame details view
- Provide feedback from the Issues tab
- Dropped frames in the Performance panel
- Emulate foldable and dual-screen in Device Mode
- [Experimental] Automate browser testing with Puppeteer Recorder
- [Experimental] Font editor in the Styles pane
- [Experimental] CSS flexbox debugging tools
- [Experimental] New CSP Violations tab
- [Experimental] New color contrast calculation - Advanced Perceptual Contrast Algorithm (APCA)
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
andurl
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 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
andclass
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