TurboHTTPHigh-Performance HTTP Client for .NET

Built on Akka.Streams — automatic retries, caching, cookies, and HTTP/2 & HTTP/3 multiplexing out of the box.

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HTTP/1.0, HTTP/1.1, HTTP/2 & HTTP/3

Automatic version negotiation, HPACK/QPACK compression, flow control, and multiplexed streams over TCP and QUIC. One client handles all versions.

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Smart retry with idempotency detection — GET, PUT, DELETE are retried automatically. Respects Retry-After headers. POST is never retried.

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In-memory LRU cache with Vary support, conditional requests (ETag, Last-Modified), and freshness evaluation. Zero config needed.

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Automatic redirect chain following with method rewriting (301/302 → GET), body preservation (307/308), loop detection, and cross-origin safety.

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Automatic cookie storage and injection. Domain/path matching, Secure/HttpOnly/SameSite attributes, expiration handling.

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Per-host connection pools with automatic reconnect, idle eviction, and configurable concurrency limits.

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Automatic gzip, deflate, and Brotli decompression. Server-driven content negotiation via Accept-Encoding.

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Span, Memory, and IBufferWriter throughout. Pooled buffers, stateful decoders, zero GC pressure on the hot path.