fetch-smartlyResilient HTTP Made Effortless

Zero-dependency, isomorphic HTTP client with intelligent retry, circuit breaker, and offline queue for Node.js and browsers

Intelligent Retry

Exponential backoff with jitter, Retry-After header respect, and custom retry predicates. Never hammer a struggling server again.

Automatic failure isolation with open/half-open/closed state machine. Fail fast when a service is down, recover gracefully.

Concurrent identical GET/HEAD requests share a single in-flight fetch. Save bandwidth and reduce server load effortlessly.

NetworkError, TimeoutError, HttpError, RateLimitError — every failure is classified with instanceof checks and structured metadata.

Queue failed requests for replay when connectivity returns. Pluggable storage backends for browser (localStorage) and Node (in-memory).

Built entirely on native Web APIs. Works in Node.js 18+, browsers, Cloudflare Workers, Deno, and Bun. Under 16KB bundled.