Web Platform Baseline Status Breakdown
Total Features: 1219
Categories:
All
CSS (102)
HTML elements (100)
Selectors (46)
JavaScript (43)
Forms (42)
WebGL extensions (37)
Text (26)
WebAssembly (22)
Media queries (21)
Scrolling (20)
Fonts (19)
Performance (19)
Arrays (17)
Layout (17)
HTML (16)
Progressive web app (15)
Typed arrays (14)
Units (14)
Canvas (13)
Color types (13)
Strings (13)
Background (12)
Media elements (12)
Security (12)
Animation (11)
Clipping, shapes, and masking (11)
Web components (11)
WebXR (11)
Typographic font features (10)
DOM (9)
Internationalization (9)
Iterators (9)
Reporting (9)
Text wrap (9)
Workers (9)
Clipboard (8)
CSS object models (7)
Containment (7)
Fetch (7)
JavaScript modules (7)
Print media (7)
Sensors (7)
Container queries (6)
Explicit defaults (6)
Image formats (6)
Landmark elements (6)
Multi-column (6)
Positioning (6)
Promises (6)
SVG (6)
Storage (6)
Streams (6)
Credential management (5)
Custom elements (5)
Font synthesis (5)
HTTP (5)
Lists (5)
Messaging (5)
Resource hints (5)
Ruby (5)
Selection (5)
Speech (5)
Transitions (CSS) (5)
View transitions (5)
Web audio (5)
WebGL (5)
Anchor positioning (4)
Cookies (4)
Counters (4)
File system access (4)
Flexbox (4)
Gamepad (4)
Grid (4)
Images (4)
Primitive types (4)
Regular expressions (4)
WebDriver (4)
WebRTC (4)
Blend mode (3)
Borders and outlines (3)
Geolocation (3)
Gradients (3)
Image scaling (3)
JSON (3)
Maps (3)
MathML (3)
Payments (3)
Reading order (3)
Scroll markers (3)
Transforms (3)
WebAuthn (3)
WebGPU (3)
White space (3)
Worklets (3)
XML (3)
Collections (2)
Compute pressure (2)
IndexedDB (2)
Parsing and serialization (2)
Resource integrity (2)
Sets (2)
Text fragments (2)
WebMCP (2)
CSS environment variables (1)
2025
1 features
• August 2025
Newly Available
The <input type="file" webkitdirectory> HTML element shows a file picker from which users can choose a folder to upload with the form.
Chrome
13
Firefox
50
Safari
11.1
Edge
13
Baseline Date: Aug 19, 2025
2023
1 features
• March 2023
Widely Available
The navigator.storage.getDirectory() method returns a FileSystemDirectoryHandle that is restricted to a specific origin and invisible to the user's actual file system for faster file-based applications, such as SQLite databases.
Chrome
108
Firefox
111
Safari
16.4
Edge
108
Baseline Date: Mar 27, 2023
2015
1 features
• July 2015
Widely Available
The <input type="file" multiple> HTML element shows a file picker from which users can choose one or more files to upload with a form.
Chrome
2
Firefox
3.6
Safari
4
Edge
12
Baseline Date: Jul 29, 2015
Limited Availability
1 features
• In Progress / Not Yet Baseline
Limited
The showOpenFilePicker(), showDirectoryPicker(), and showSaveFilePicker() methods request access to files and directories on the user's device and returns a handle for reading and writing to them.
Chrome
86
Firefox
—
Safari
—
Edge
86
Status: Incomplete cross-engine support