Web Platform Baseline Status Breakdown
Total Features: 1219
Categories:
All
CSS (2)
JSON (2)
JavaScript (2)
Performance (2)
Scrolling (2)
Typed arrays (2)
View transitions (2)
Clipboard (1)
File system access (1)
Forms (1)
HTML (1)
HTML elements (1)
Internationalization (1)
Iterators (1)
Print media (1)
Promises (1)
Regular expressions (1)
Resource hints (1)
Selection (1)
Selectors (1)
Text (1)
Web components (1)
WebAssembly (1)
WebGL extensions (1)
WebRTC (1)
2025
2 features
• April 2025
Newly Available
Module import … with { type: "json" } statements load JSON data. Also known as JSON module scripts.
Chrome
123
Firefox
138
Safari
17.2
Edge
123
Baseline Date: Apr 29, 2025
• March 2025
Newly Available
To serialize and parse JSON in a lossless way, JSON.stringify() handles rawJSON values and JSON.parse()'s reviver callback takes a source context parameter.
Chrome
114
Firefox
135
Safari
18.4
Edge
114
Baseline Date: Mar 31, 2025