13 Native Browser APIs Now Baseline in 2026, Replacing Common JS Libraries
As of 2026, thirteen web APIs have achieved Baseline status, meaning they are fully supported across all major browsers without polyfills. These native APIs can replace widely used libraries such as Moment.js, Lodash, Axios, UUID, and clipboard.js, potentially eliminating over 115 KB of gzipped bundle weight. Key additions include structuredClone for deep copying objects, crypto.randomUUID for generating unique identifiers, and Intl.RelativeTimeFormat for human-readable relative timestamps. Other notable APIs include the native dialog element for modals, IntersectionObserver for lazy loading, and ResizeObserver for element-level resize detection. Developers are encouraged to audit their dependencies and replace these packages with built-in browser capabilities to reduce bundle sizes and simplify codebases.
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