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H2 is used at run time in 21,098 crates (of which 13,306 optionally). It is a direct run-time dependency in 159 crates. It's used at build time in 240 crates (of which 229 optionally, ). It's used only as a dev dependency in 2,587 crates (of which 8 directly).
| Number of dependers | H2 version | Downloads/month |
|---|---|---|
| 9,108 | 0.4.15 | 651K |
| 0 | 0.4.14 | 13.2M |
| 1 | 0.4.13 | 19.1M |
| 12,056 | 0.3.27 | 16.8M |
| 1,684 | 0.2.7 | 915K |
| 1 | 0.2.0-alpha.3 | 4.5K |
| 1,075 | 0.1.26 | 235K |
| Depender (with downloads and own rev deps) | H2 version | |||
|---|---|---|---|---|
| 58.8M | 5118 | hyper | optional | ^0.4.14 |
| 49.1M | 25502 | reqwest | optional | ^0.4 |
| 26.3M | 3005 | tonic | optional | ^0.4 |
| 6.9M | 49 | aws-smithy-http-client | ^0.4.11 | |
| 2.9M | 207 | actix-http | optional | ^0.3.27 |
| 830K | 35 | pingora-core | >=0.4.11 | |
| 829K | 30 | pingora-proxy | >=0.4.11 | |
| 1.1M | 192 | google-cloud-gax-internal | optional | ^0.4.14 |
| 1.2M | 12 | hickory-net | optional | ^0.4.0 |
| 1.2M | 44 | trust-dns-proto | optional | ^0.3.0 |
| 313K | 109 | awc | ^0.3.27 | |
| 211K | 4 | rama-http-backend | ^0.4 | |
| 320K | 27 | hickory-server | optional | ^0.4.0 |
| 36K | reqres | ^0.4 | ||
| 89K | 2 | tonic-rustls | optional | ^0.4 |
| 27K | 24 | deno_fetch | ^0.4.6 | |
| 19K | 19 | spider | ^0.4 | |
| 14K | 2 | tokio-console | ^0.4.6 | |
| 36K | 28 | trust-dns-server | optional | ^0.3.0 |
| 33K | 1 | azure_data_cosmos_driver | optional | ^0.4.13 |
| 28K | 6 | zed-reqwest | optional | ^0.4 |
| 8.6K | 22 | deno_websocket | ^0.4.6 | |
| 22K | linkerd2-proxy-api | optional | ^0.4 | |
| 6.3K | 2 | apollo-router | ^0.4.13 | |
| 18K | 5 | sockudo-ws | optional | ^0.4 |
| 4.2K | 12 | uv-client | ^0.4.7 | |
| 2.4K | 6 | reqwest-wasm | ^0.3.10 | |
| 1.6K | golem-cloud-cli | ^0.3.24 | ||
| 1.5K | vegafusion-server | ^0.3.26 | ||
| 1.4K | asupersync-conformance | ^0.4 | ||
| 1.4K | 3 | agp-datapath | ^0.4.7 | |
| 4.1K | vibeio-http | optional | ^0.4 | |
| 1.1K | 1 | release_plz_core | ^0.4 | |
| 1.1K | doh-client | ~0.4.12 | ||
| 850 | rezolus | ^0.4.10 | ||
| 650 | acsrs | ^0.3.17 | ||
| 2.1K | tracelite | optional | ^0.4 | |
| 480 | 1 | hedera | ^0.4.12 | |
| 360 | 4 | spikard-http | ^0.4 | |
| 340 | 2 | tower-grpc | ^0.1.11 | |
| 330 | h2x | ^0.4 | ||
| 330 | junction-core | ^0.3 | ||
| 300 | remotesysmonitor | ^0.4.5 | ||
| 250 | 1 | kaspa-grpc-server | ^0.4.6 | |
| 230 | 2 | hiero-sdk | ^0.4.12 | |
| 1.1K | 2 | http-handle | optional | ^0.4 |
| 190 | 1 | chatgpt_blocking_rs | ^0.3.20 | |
| 180 | h2kv | ^0.4 | ||
| 180 | momento | ^0.4 | ||
| 160 | 5 | relay-core-lib | ^0.4 | |
| 130 | hds_tokio-console | ^0.3 | ||
| 110 | 7 | agntcy-slim-datapath | ^0.4.7 | |
| 100 | 1 | fn0-deno-fetch | ^0.4.6 | |
| 2 | agntcy-slim-controller | ^0.4.7 | ||
| thetadatadx | ^0.4 | |||
| hoard-rs | ^0.3.20 | |||
| chaussette | ^0.4.7 | |||
| 9 | actori-http | ^0.2.1 | ||
| 1 | ewe_devserver | ^0.4 | ||
| gcdevproxy | ^0.4 | |||
| 8 | volo-grpc | ^0.4 | ||
| icx-proxy | ^0.3.19 | |||
| hreq | ^0.3 | |||
| proxide | ^0.3 | |||
| 2 | kaspa-grpc-core | ^0.4.6 | ||
| 8 | requiem-http | ^0.2.1 | ||
| 8 | scrappy-http | ^0.2.1 | ||
| 4 | kaspa-grpc-client | ^0.4.6 | ||
| 3 | kaspa-p2p-lib | ^0.4.6 | ||
| vaultproxy | ^0.4 | |||
| vru-apns | ^0.4.0 | |||
| tokio-h2mux | ^0.3.21 | |||
| fast_reqwest | ^0.3.10 | |||
| izanami | ^0.1 | |||
| rslocal | ^0.3 | |||
| soth-mitm | ^0.4 | |||
| gtunnel | ^0.3 | |||
| mtunnel | ^0.3 | |||
| 1 | pi_awc | ^0.3.9 | ||
| aex | ^0.4 | |||
| 1 | agent-os-sidecar | ^0.4 | ||
| 1 | agp-controller | ^0.4.7 | ||
| arnelify_server | ^0.4.12 | |||
| boardwalk | ^0.4 | |||
| 1 | boardwalk-peer | ^0.4 | ||
| 3 | boardwalk-tunnel | ^0.4 | ||
| 1 | buildkit-client | ^0.4 | ||
| cert-x-gen | ^0.4 | |||
| derusted | ^0.4.6 | |||
| dgate | ^0.4 | |||
| faithea | ^0.4.12 | |||
| 1 | falcorn-core | ^0.4 | ||
| firebase-rust-sdk | ^0.4 | |||
| flyer | ^0.4.14 | |||
| forgedns | ^0.4 | |||
| fusen | ^0.4 | |||
| fusen-gateway | ^0.4 | |||
| 1 | ios-core | ^0.4 | ||
| krpc-core | ^0.4 | |||
| 1 | oxirpc-client | ^0.4 | ||
| 1 | oxitls-h2 | ^0.4.14 | ||
| plumbrs | ^0.4.14 | |||
| psi_detector | ^0.4 | |||
| pyx | ^0.4 | |||
| 1 | qail-qdrant | ^0.4 | ||
| 1 | quilkin-xds | ^0.4 | ||
| rat_engine | ^0.4 | |||
| rpress | ^0.4 | |||
| 1 | signaldock-transport | ^0.4 | ||
| spectreq | ^0.4 | |||
| spire-proxy | =0.4.13 | |||
| tinytun | ^0.3.18 | |||
| tobira | ^0.4 | |||
| tor_simple_impersonate | ^0.4.13 | |||
| water_http | ^0.4.12 | |||
| 480 | limitador | optional | ^0.4 | |
| 300 | 2 | mq-bridge | optional | ^0.4 |
| 270 | 3 | areq | optional | ^0.4 |
| 210 | cf-reqwest | optional | ^0.4 | |
| 210 | reqwest-spider | optional | ^0.4 | |
| 160 | 1 | tonic-veecore | optional | ^0.4 |
| 130 | 1 | froodi | optional | ^0.4 |
| 100 | 1 | slinger | optional | ^0.4 |
| supply-chain-trust-example-crate-000068 | optional | ^0.4.2 | ||
| 1 | rama-hyper | optional | ^0.4 | |
| supply-chain-trust-example-crate-000081 | optional | ^0.4.2 | ||
| architect-tonic | optional | ^0.4 | ||
| 1 | dusks-reqwest | optional | ^0.4 | |
| 1 | fluxio | optional | ^0.4.13 | |
| 4 | hiver-http | optional | ^0.4 | |
| 1 | hyper-myyrakle | optional | ^0.4.2 | |
| 4 | hyper-spider | optional | ^0.4.2 | |
| informalsystems-tonic | optional | ^0.3 | ||
| 5 | kvarn | optional | ^0.4.5 | |
| 2 | liburlx | optional | ^0.4 | |
| m10-sdk | optional | ^0.4 | ||
| 4 | nsproxy-hickory-proto | optional | ^0.4.0 | |
| nsproxy-hickory-server | optional | ^0.4.0 | ||
| 1 | opentelemetry-micropb | optional | ^0.4 | |
| oxidns | optional | ^0.4 | ||
| potato | optional | ^0.4.12 | ||
| prism-mcp-rs | optional | ^0.4.4 | ||
| product-os-h2 | optional | ^0.4.0 | ||
| 2 | reqwest-h3 | optional | ^0.4 | |
| reqwest-patched | optional | ^0.4 | ||
| reqwest-tor | optional | ^0.4 | ||
| santh-sear | optional | ^0.4 | ||
| sib | optional | ^0.4.13 | ||
| slumber-reqwest | optional | ^0.4 | ||
| 1 | tonic-arcanyx-fork | optional | ^0.3 | |
| tonic-iroh-transport | optional | ^0.4 | ||
| 1.4M | 26 | connectrpc | dev | ^0.4 |
| 285K | 6 | http2 | dev | ^0.4 |
| 6.3K | 1 | wreq-proto | dev | ^0.4.6 |
| 1.2K | 1 | h2session | dev | ^0.4 |
| 100 | wasmio | dev | =0.4 | |
| 1 | monoio-transports-netreq-fork | dev | ^0.4.7 | |
| 3 | fn0 | dev | =0.4.13 | |
| 2 | monoio-transports | dev | ^0.4 | |
| 1 | camber | dev | ^0.4.4 | |
| drasi-bootstrap-http | dev | ^0.4 | ||
| http-pack | dev | ^0.4 | ||
| kuiper-forge | dev | ^0.4 | ||
| 1 | roder-ext-cursor | dev | ^0.4.14 | |
| 6 | spine-transport | dev | ^0.4 | |
| strest | dev | ^0.4.12 | ||
| ugi | dev | ^0.4 | ||