smol

smol is used at run time in 310 crates (of which 126 optionally). It is a direct run-time dependency in 195 crates. It's used at build time in 1 crate. It's used only as a dev dependency in 130 crates (of which 115 directly).

Number of dependers	smol version	Downloads/month
197	2.0.2	180K
211	1.3.0	125K
4	1.2.5	2.6K
3	0.4.3	0
6	0.3.3	350
20	0.1.18	5.5K

Depender (with downloads and own rev deps)			smol version
2.8M	6009	criterion	optional	^1.2
2.6M	165	quinn	optional	^2
565K	53	fs4	optional	^2
241K	18	if-watch	optional	^2
196K	2	smoldot-light	optional	^2.0.0
107K	55	codspeed-criterion-compat	optional	^2.0
28K	11	poll-promise	optional	^1.2.5
24K	25	iced_futures	optional	^1.0
23K	33	socketcan	optional	^1.3
17K	3	async-condvar-fair	optional	^1
13K	7	runtimelib	optional	^2
3.0K	1	delay_timer		^1.2.5
9.0K	7	criterion2	optional	^2.0.2
8.1K	12	iroh-quinn	optional	^2
1.9K		melminter		^1.2.5
1.8K		pcap-async		^1.2
5.7K	5	fmmap	optional	^1.3
1.6K	2	feature-extension-for-smol		^2
1.5K		puppeteer		^2.0.0
1.4K	3	retty		^2.0.0
1.1K		env-select		^2.0.0
1.1K	1	geph5-client		^2.0.0
850		eventure		^2.0.0
3.2K	2	streamcatcher	optional	^1
850		geph4-client		^1.3.0
2.8K	2	timer-kit	optional	^1
2.7K	3	hwaddr	optional build	>=1.0.0, <2.0.0
550	1	sosistab2-obfstls		^1.3.0
550		smoldot-full-node		^2.0.0
500		melnode		^1.3.0
490	2	nursery_macro		^1.3.0
420	1	smol-executor-trait		^2.0
410		luavisors		^2
390	1	libublk		^2.0.2
380	4	geph4-aioutils		^1.2.5
340		earendil-gui		^1
1.4K	1	async-transport	optional	^2.0.0
320	3	sosistab		^1.2.5
1.4K		ch4	optional	^2
310	3	geph4-protocol		^1.2.5
290		cast-sender		^2.0
280		ai-agents		^2.0
260		hitdns		^2.0.0
260		gfwdns		^2.0.2
1.1K		mqrstt	optional	^2
160		rublk		^2.0.2
150	3	melnet		^1.2.5
120		sidecar		^2
120	3	themelio-nodeprot		^1.2.5
110		act-locally		^2.0.2
110		geph4-exit		^1.3.0
110	1	virta		^2.0.0
100		wez-mdns		^1.3
800	2	karyon_core	optional	^2.0
		mxdns		^2
750		lyanne	optional	^2.0.0
	2	naia-server-socket		^1.3
	1	melblkidx		^1.2.5
		dir-meta		^2.0.0
		melwallet-cli		^1.2.5
	1	asuran		^0.1.18
	1	streamlette		^1.2.5
		melminter-mod		^1.2.5
		themelio-node		^1.2.5
700		gdext_coroutines	optional	^2.0
	1	erl_rpc		^2
		libpylon		^1.3.0
		voxy		^2.0.2
		benchrs		^1.2.5
		asuran-cli		^0.1.18
		sosistab2-obfsws		^1.3.0
	8	melprot		^1.2.5
		gstreamer_iced		^2.0.0
	1	melib		^2
	4	nanorpc-http		^1.3.0
	1	tundevice		^1.2.5
	6	melnet2		^1.2.5
	1	novasymph		^1.2.5
		cait-sith		^1.3.0
		rtcps		^1.3
	4	runa-io		^1.2.5
		psychophysics		^1.3.0
	2	libtun		^0.1.11
		scripthookv-rs		^1.2.4
		blindspot		^1.2.5
		gfuckw		^1.2.5
		poseidon-client		^1.2.5
	2	runa-core		^1.2.5
		ikill		^1.2.5
		empath		^1.2
		erldash		^2
		rust-with-kafka-tls		^1.2.4
	2	wezterm-ssh		^1.2
		async-ssh2		^0.1
		geph4-vpn-helper		^1.2.5
		sqlui		^1.2.5
		karma-p2p-webrtc		^1.2.5
		caspaxos-kv		^1.0.1
		sosistun		^1.2.5
		wechat-mp		^0.1
		ether-dream-dac-emulator		^0.1
		ap_kcp		^1.2
		crescent		^1.2.5
		kapiti		^1.2
		rmus		^0.1.18
		rust-tunnel		^1.2.5
		turingdb-server		^0.3.3
		cargo-fixture		^1.3.0
		manx		^0.1.4
		rkill_lib		^1.2.5
		suricata-ipc		^1.2
		cooper		^1.2
	2	distant-ssh2		^1.3.0
		isostatic		^0.3.3
		smol-attributes		^0.1
		smtp-server		^1.2
		stocker		^0.1.18
		gremlin-cli		^0.4.3
		rkill		^1.2.5
		direct_http		^1.3.0
		hup		^0.1.11
		lkj		^0.1.11
		neu		^1.2.5
		persia-futures		^1.0
	4	sosistab2		^1.3.0
		wirectl		^1.2.5
		delay_timer_wf		^1.2.5
		is-prime2		^1.3.0
		meows		~0.1.11
		narwhalol		^0.1.4
		seagulldoro		^1.2.5
	2	sosistab2-obfsudp		^1.3.0
		stream-merge		^1.0.0
		digtask		^2.0.0
	1	melwallet-client		^1.2.5
		melwalletd		^1.2.5
		scd30-modbus		^2.0.0
		smtp-client		^1.2
		smtp-queue		^1.2
		twitch_chat_wrapper		^0.3.3
	1	earendil		^1.3.0
		geph4-binder-transport		^1.2.5
		hyparview-rs		^2.0.0
		lottie-player		^2.0.0
		rusty-socket		^2.0.2
		scl-core		^1.2
		webrtc-streaming-actix		^2
490	2	rsdns	optional	^2
390		teenygame	optional	^2.0.2
380	1	xrpl-rust	optional	^2.0.2
340	1	zallocator	optional	^2
330	1	close_already	optional	^2
300	1	bevy_remote_stream	optional	^2
300	2	channels-io	optional	^2
250		embedded-huffman	optional	^2.0.2
230	5	product-os-async-executor	optional	^2.0.2
170	1	spawns-compat	optional	^2.0.0
140		agnostik	optional	^1.2.4
130		rucron	optional	^1.3.0
110	2	twitchchat	optional	^1.2
	4	xtra	optional	^1.1
	1	asuran-chunker	optional	^0.1.18
		kludgine-app	optional	^1.2.5
	1	async-abci	optional	^1.2.5
		async-vfs-os	optional	^1.2.5
		servt	optional	^2.0.0
		abci-rs	optional	^1.2.5
		abs_art	optional	^2
	3	async-send-fd	optional	^2
		blynk_io	optional	^1.2
	1	cargo-fixture-lib	optional	^1.3.0
	1	credent_cli	optional	^1.2.5
	1	credent_cli_model	optional	^1.2.5
	1	dnsclientx	optional	^2
		doomsday-clock	optional	^1
		drteeth	optional	^1.3.0
		embedded-td	optional	^1.2.5
		hls_lfcd_lds_driver	optional	^1.2
		if-watch-plus	optional	^1.2.5
	1	kvarn-quinn	optional	^2
	3	lnk-thrussh-agent	optional	^1.2
		megumax	optional	^1.2.2
		mews	optional	^2
		ohkami	optional	^2
		redis_tang	optional	^1
		riptun	optional	^1.2.5
		tappers	optional	^2.0.2
		tasic	optional	^1.3.0
		task-collection	optional	^1.0
2.0M	53	async-task	dev	^2
693K	169	aws-sdk-s3	dev	^1.2.0
583K	226	enum_dispatch	dev	^1.3.0
351K	42	tokio-socks	dev	^2.0.0
272K	37	futures-rustls	dev	^1
270K	105	rdkafka	dev	^1.2.4
205K	120	sea-orm	dev	^1.2
144K	1	sea-orm-cli	dev	^1.2.5
113K	36	async-mutex	dev	^0.1.18
78K	1240	bevy	dev	^2
70K	4	stabby	dev	>=1, <3
68K	32	async-dup	dev	^1
63K	17	async_once	dev	^1.2.4
57K	1	futures-ticker	dev	^1.2.5
28K	28	nats	dev	^1.2.5
14K	7	async-rustls	dev	^2.0
14K	21	portable-pty	dev	^1.2
10K	7	smlang	dev	^1
9.3K	19	smol-potat	dev	^1.2
8.7K	3	async-http-codec	dev	^1.2.5
8.4K	1	async-web-client	dev	^2.0.0
8.3K	17	rustls-acme	dev	^2.0.0
8.2K	3	ksni	dev	^2
7.7K	1	oxide-auth-async	dev	^1.3.0
7.6K	10	async-utility	dev	^2.0
5.5K	2	rustdds	dev	^2.0
5.5K	9	wg	dev	^2
5.3K	6	fixed-buffer	dev	^2
4.2K	4	ros2-client	dev	^1.3
2.6K		madsim-rdkafka	dev	^1.2.4
2.1K		interthread	dev	^2.0.0
1.9K	11	trillium-http	dev	^2.0.0
1.8K		apecs	dev	^2.0
1.7K	6	retainer	dev	^1.2
1.7K	2	iocraft	dev	^2.0.1
1.4K	3	isotest	dev	^1.2
1.2K	1	iocraft-macros	dev	^2.0.1
950	1	image2	dev	^1
800	1	karyon_net	dev	^2.0
800	1	karyon_jsonrpc	dev	^2.0
750	17	nanorpc	dev	^1.2.5
600		sled-overlay	dev	^2
500	2	picomux	dev	^2
490		graceful-shutdown	dev	^2.0
450		ethercrab	dev	^2.0.0
420		alhc	dev	^1.3.0
360		ruloom	dev	^2
290		poster	dev	^1.2
260	1	sllm-rs	dev	^2.0
240		async-skipdb	dev	^2
230	1	unicom-nres	dev	^2
230		trillium-acme	dev	^2.0.0
220		agnostic-mdns	dev	^2
200		unicom-tcp	dev	^2
180		solana-payments	dev	^2.0.0
180	2	erl_dist	dev	^1
160	2	mprocs-pty	dev	^1.2
160		mosquitto-rs	dev	^2.0
150	3	tintanum	dev	^2.0.2
140		elegant-departure	dev	^1
130	2	async-web-server	dev	^1.2.5
130		borrow_mutex	dev	^1.3
120		messages	dev	^1.2
100		async-time-mock-smol	dev	^2
		ticque	dev	^2
	1	priority-async-mutex	dev	^1
	2	vmcircbuffer	dev	^1.2.5
		async-scgi	dev	^2.0
	1	onetime	dev	^2
	1	fastudp	dev	^1
		lapinou	dev	^1.0
		stream_multiplexer	dev	^0.3.3
	2	tang-rs	dev	^0.1.10
	1	msedge-tts	dev	^2.0.2
	1	async-peek	dev	^0.4
	2	async-cron-scheduler	dev	^2.0.0
		async-mavlink	dev	^1
	1	credent_fs	dev	^1.2.5
		sea-orm-fork	dev	^1.2
		aiven_rs	dev	^1.2.5
		bench-rs	dev	^1.2.1
		tophat	dev	^1.2.5
		async-quic	dev	^1.2.5
		interactsh-rs	dev	^1
		pg_wire	dev	^1.2.5
		async-nng	dev	^2.0
		coil	dev	^1.2
	4	keepcalm	dev	^1
		credent	dev	^1.2.5
		nats-aflowt	dev	^1.2.5
		curseforge	dev	^1.2
		async-tcp	dev	^0.4
	1	scopegraphs	dev	^2
		async-task-ffi	dev	^1.0.1
		mailboxxy	dev	^2.0.0
		futures-mockstream	dev	^0.1.4
		juggle	dev	^1.0.1
	2	wait-for-me	dev	^1.3.0
		crossmist	dev	^2
	2	mfio	dev	^1
		starfish-ql	dev	^1.2
		autolog	dev	^1.2
		trillium-tracing	dev	^1.2.5
		gsi	dev	^1.0.0
		modrinth	dev	^1
		see-you-later	dev	^0.1
	1	sfu	dev	^2
		signalfut	dev	^2.0.0
		pipe_macro	dev	^0.1
		rmw_ttlmap	dev	^1.2.5
		tdn_permission	dev	^1
		tdn_storage	dev	^1
	1	async-cpupool	dev	^2.0.0
		radicle-keystore	dev	^1.2
		retainer_nickbp	dev	^1.2
	1	mfio-rt	dev	^1
		vuot	dev	^2
		async-gpiod	dev	^2
		async-hidg	dev	^2
		edyn	dev	^1.3.0
	1	lottie-renderer-bevy	dev	^2.0.0
	1	willow-data-model	dev	^2.0.0