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Web Platform Baseline Status Breakdown Total Features: 1191
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Categories: All CSS (101) HTML elements (98) Selectors (46) JavaScript (43) Forms (40)
WebGL extensions (37) WebAssembly (22) Media queries (21) Fonts (19) Performance (19) Text (19) Scrolling (18) Arrays (17) Layout (17) HTML (16) Progressive web app (15) Typed arrays (14) Units (14) Canvas (13) Background (12) Color types (12) Media elements (12) Strings (12) Clipping, shapes, and masking (11) Security (11) Web components (11) WebXR (11) Typographic font features (10) Animation (9) Internationalization (9) Reporting (9) Text wrap (9) Clipboard (8) Workers (8) Containment (7) DOM (7) Fetch (7) JavaScript modules (7) Print media (7) Sensors (7) CSS object models (6) Image formats (6) Iterators (6) Landmark elements (6) Positioning (6) Promises (6) SVG (6) Storage (6) Streams (6) Credential management (5) Custom elements (5) Explicit defaults (5) Font synthesis (5) HTTP (5) Messaging (5) Multi-column (5) Resource hints (5) Ruby (5) Selection (5) Speech (5) Transitions (CSS) (5) View transitions (5) Web audio (5) WebGL (5) Container queries (4) Cookies (4) Counters (4) File system access (4) Flexbox (4) Gamepad (4) Grid (4) Images (4) Lists (4) Primitive types (4) Regular expressions (4) WebDriver (4) WebRTC (4) Blend mode (3) Borders and outlines (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) Geolocation (2) IndexedDB (2) Parsing and serialization (2) Resource integrity (2) Sets (2) Text fragments (2) WebMCP (2) CSS environment variables (1)
Showing 5 of 5 features

2026

1 features
• February 2026

Branch hints in WebAssembly allows a browser to optimize performance when a branch is a likely to take a specific path.

Chrome 137
Firefox 148
Safari 16
Edge 137
Baseline Date: Feb 24, 2026

2025

1 features
• May 2025

When caught, an exception is reified into an exception reference, a value of the new type exnref.

Chrome 137
Firefox 131
Safari 18.4
Edge 137
Baseline Date: May 29, 2025

2024

3 features
• December 2024

Garbage collection tracks references for better memory management with garbage-collected languages running in WebAssmbly.

Chrome 119
Firefox 120
Safari 18.2
Edge 119
Baseline Date: Dec 11, 2024

Tail call optimization discards a caller frame and replaces the call with a jump instruction.

Chrome 112
Firefox 121
Safari 18.2
Edge 112
Baseline Date: Dec 11, 2024
• September 2024

A typed function reference can be called directly.

Chrome 119
Firefox 120
Safari 18
Edge 119
Baseline Date: Sep 16, 2024