smol

smol is used at run time in 297 crates (of which 124 optionally). It is a direct run-time dependency in 192 crates. It's used at build time in 1 crate. It's used only as a dev dependency in 133 crates (of which 115 directly).

Number of dependers	smol version	Downloads/month
187	2.0.2	205K
210	1.3.0	175K
4	1.2.5	2.5K
3	0.4.3	0
7	0.3.3	340
20	0.1.18	4.1K

Depender (with downloads and own rev deps)			smol version
3.1M	5880	criterion	optional	^1.2
3.1M	158	quinn	optional	^2
744K	52	fs4	optional	^2
318K	18	if-watch	optional	^2
268K	2	smoldot-light	optional	^2.0.0
69K	52	codspeed-criterion-compat	optional	^2.0
36K	32	socketcan	optional	^1.3
34K	3	async-condvar-fair	optional	^1
33K	11	poll-promise	optional	^1.2.5
25K	25	iced_futures	optional	^1.0
15K	7	runtimelib	optional	^1.2
4.9K	1	delay_timer		^1.2.5
13K	11	iroh-quinn	optional	^2
8.8K	6	criterion2	optional	^2.0.2
2.0K		pcap-async		^1.2
6.2K	6	fmmap	optional	^1.3
1.8K	1	geph5-client		^2.0.0
1.7K	3	retty		^2.0.0
1.3K		geph4-client		^1.3.0
4.1K	2	streamcatcher	optional	^1
3.7K	3	hwaddr	optional build	>=1.0.0, <2.0.0
3.4K	2	timer-kit	optional	^1
700		hitdns		^2.0.0
550	2	nursery_macro		^1.3.0
500	4	geph4-aioutils		^1.2.5
490	1	melib		^2
470		sidecar		^2
440	3	geph4-protocol		^1.2.5
410	1	libublk		^2.0.2
1.6K	1	async-transport	optional	^2.0.0
340		act-locally		^2.0.2
300	2	naia-server-socket		^1.3
290		hyparview-rs		^2.0.0
240	2	wezterm-ssh		^1.2
200	3	sosistab		^1.2.5
180		erldash		^2
170	6	melnet2		^1.2.5
170		cast-sender		^2.0
170		rublk		^2.0.2
160	2	feature-extension-for-smol		^2
140		suricata-ipc		^1.2
130	4	nanorpc-http		^1.3.0
850	2	karyon_core	optional	^2.0
110	8	melprot		^1.2.5
110		geph4-exit		^1.3.0
800	1	close_already	optional	^2
800	2	rsdns	optional	^2
	4	sosistab2		^1.3.0
		puppeteer		^2.0.0
	3	themelio-nodeprot		^1.2.5
	1	earendil		^1.3.0
		env-select		^2.0.0
		ikill		^1.2.5
		benchrs		^1.2.5
		psychophysics		^1.3.0
	2	distant-ssh2		^1.3.0
		twitch_chat_wrapper		^0.3.3
		themelio-node		^1.2.5
		rtcps		^1.3
	1	tundevice		^1.2.5
	2	sosistab2-obfsudp		^1.3.0
		kapiti		^1.2
		mxdns		^2
		rmus		^0.1.18
		rust-with-kafka-tls		^1.2.4
		geph4-vpn-helper		^1.2.5
	4	runa-io		^1.2.5
		gstreamer_iced		^2.0.0
		isostatic		^0.3.3
	1	novasymph		^1.2.5
	1	virta		^2.0.0
		sqlui		^1.2.5
		is-prime2		^1.3.0
	3	melnet		^1.2.5
		melwallet-cli		^1.2.5
		rkill		^1.2.5
		scd30-modbus		^2.0.0
	1	smol-executor-trait		^2.0
		caspaxos-kv		^1.0.1
		meows		~0.1.11
		narwhalol		^0.1.4
		earendil-gui		^1
	2	libtun		^0.1.11
		cargo-fixture		^1.3.0
		libpylon		^1.3.0
		cooper		^1.2
		crescent		^1.2.5
		cait-sith		^1.3.0
		geph4-binder-transport		^1.2.5
		karma-p2p-webrtc		^1.2.5
		lottie-player		^2.0.0
		manx		^0.1.4
		rkill_lib		^1.2.5
	1	erl_rpc		^2
	1	melblkidx		^1.2.5
		stocker		^0.1.18
	1	streamlette		^1.2.5
		wirectl		^1.2.5
		dir-meta		^2.0.0
		webrtc-streaming-actix		^2
		empath		^1.2
		hup		^0.1.11
		lkj		^0.1.11
		neu		^1.2.5
	2	runa-core		^1.2.5
		scripthookv-rs		^1.2.4
		ai-agents		^2.0
	1	asuran		^0.1.18
		delay_timer_wf		^1.2.5
		digtask		^2.0.0
		ether-dream-dac-emulator		^0.1
		gremlin-cli		^0.4.3
		melminter		^1.2.5
		seagulldoro		^1.2.5
		blindspot		^1.2.5
	1	melwallet-client		^1.2.5
		melwalletd		^1.2.5
		sosistun		^1.2.5
		turingdb-server		^0.3.3
		voxy		^2.0.2
		wez-mdns		^1.3
		direct_http		^1.3.0
		melnode		^1.3.0
		smoldot-full-node		^2.0.0
	1	sosistab2-obfstls		^1.3.0
		sosistab2-obfsws		^1.3.0
		async-ssh2		^0.1
		eventure		^2.0.0
		gfuckw		^1.2.5
		melminter-mod		^1.2.5
		rusty-socket		^2.0.2
		scl-core		^1.2
		ap_kcp		^1.2
		asuran-cli		^0.1.18
		persia-futures		^1.0
		poseidon-client		^1.2.5
		rust-tunnel		^1.2.5
		smol-attributes		^0.1
		smtp-client		^1.2
		smtp-queue		^1.2
		smtp-server		^1.2
		stream-merge		^1.0.0
		wechat-mp		^0.1
370		mews	optional	^2
360		mqrstt	optional	^2
360	4	xtra	optional	^1.1
340	1	zallocator	optional	^2
330	2	twitchchat	optional	^1.2
260	1	bevy_remote_stream	optional	^2
250		agnostik	optional	^1.2.4
190	5	product-os-async-executor	optional	^1.3.0
170		teenygame	optional	^2.0.2
140		embedded-huffman	optional	^2.0.2
130		gdext_coroutines	optional	^2.0
130		rucron	optional	^1.3.0
100	3	async-send-fd	optional	^2
	1	spawns-compat	optional	^2.0.0
		ohkami	optional	^2
		lyanne	optional	^2.0.0
	3	lnk-thrussh-agent	optional	^1.2
	1	async-abci	optional	^1.2.5
		xrpl-rust	optional	^2.0.2
		abci-rs	optional	^1.2.5
		servt	optional	^2.0.0
		abs_art	optional	^2
	1	asuran-chunker	optional	^0.1.18
		async-vfs-os	optional	^1.2.5
		blynk_io	optional	^1.2
	1	cargo-fixture-lib	optional	^1.3.0
		ch4	optional	^2
	2	channels-io	optional	^2
	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
		kludgine-app	optional	^1.2.5
	1	kvarn-quinn	optional	^2
		megumax	optional	^1.2.2
		redis_tang	optional	^1
		riptun	optional	^1.2.5
		tappers	optional	^2.0.2
		tasic	optional	^1.3.0
		task-collection	optional	^1.0
2.5M	53	async-task	dev	^2
960K	164	aws-sdk-s3	dev	^1.2.0
711K	215	enum_dispatch	dev	^1.3.0
423K	41	tokio-socks	dev	^2.0.0
384K	105	rdkafka	dev	^1.2.4
362K	37	futures-rustls	dev	^1
292K	118	sea-orm	dev	^1.2
212K	1	sea-orm-cli	dev	^1.2.5
136K	36	async-mutex	dev	^0.1.18
96K	4	stabby	dev	>=1, <3
94K	18	async_once	dev	^1.2.4
89K	32	async-dup	dev	^1
84K	1201	bevy	dev	^2
68K	2	futures-ticker	dev	^1.2.5
43K	28	nats	dev	^1.2.5
18K	7	async-rustls	dev	^2.0
17K	19	portable-pty	dev	^1.2
16K	3	async-http-codec	dev	^1.2.5
15K	1	async-web-client	dev	^2.0.0
15K	16	rustls-acme	dev	^2.0.0
12K	1	oxide-auth-async	dev	^1.3.0
11K	7	smlang	dev	^1
8.8K	19	smol-potat	dev	^1.2
8.8K	3	ksni	dev	^2
7.8K	6	fixed-buffer	dev	^2
7.7K	9	async-utility	dev	^2.0
5.3K	2	rustdds	dev	^2.0
4.4K	9	wg	dev	^2
4.0K	11	trillium-http	dev	^2.0.0
3.9K	4	ros2-client	dev	^1.3
3.1K	6	retainer	dev	^1.2
2.9K		madsim-rdkafka	dev	^1.2.4
1.8K		graceful-shutdown	dev	^2.0
1.6K	3	isotest	dev	^1.2
1.5K	1	image2	dev	^1
1.0K	17	nanorpc	dev	^1.2.5
850	1	karyon_net	dev	^2.0
850	1	karyon_jsonrpc	dev	^2.0
850		sled-overlay	dev	^2
750	1	iocraft	dev	^2.0.1
700	2	picomux	dev	^2
550	2	erl_dist	dev	^1
550	1	iocraft-macros	dev	^2.0.1
550		ethercrab	dev	^2.0.0
470	2	vmcircbuffer	dev	^1.2.5
430		elegant-departure	dev	^1
370	3	tintanum	dev	^2.0.2
340		ruloom	dev	^2
250	1	scopegraphs	dev	^2
230	2	mprocs-pty	dev	^1.2
230	1	msedge-tts	dev	^2.0.2
220		interthread	dev	^2.0.0
180		sea-orm-fork	dev	^1.2
170		async-cron-scheduler	dev	^2.0.0
110		messages	dev	^1.2
		mosquitto-rs	dev	^2.0
		apecs	dev	^2.0
	1	async-cpupool	dev	^2.0.0
	4	keepcalm	dev	^1
	2	wait-for-me	dev	^1.3.0
		async-mavlink	dev	^1
	1	credent_fs	dev	^1.2.5
	1	sfu	dev	^2
		async-skipdb	dev	^2
		crossmist	dev	^2
		bench-rs	dev	^1.2.1
		trillium-acme	dev	^2.0.0
		async-quic	dev	^1.2.5
		interactsh-rs	dev	^1
	1	lottie-renderer-bevy	dev	^2.0.0
		pg_wire	dev	^1.2.5
	1	onetime	dev	^2
		radicle-keystore	dev	^1.2
		credent	dev	^1.2.5
	2	mfio	dev	^1
		signalfut	dev	^2.0.0
		async-task-ffi	dev	^1.0.1
	1	unicom-nres	dev	^2
		juggle	dev	^1.0.1
		lapinou	dev	^1.0
		coil	dev	^1.2
		stream_multiplexer	dev	^0.3.3
		ticque	dev	^2
	1	willow-data-model	dev	^2.0.0
	1	async-peek	dev	^0.4
		async-scgi	dev	^2.0
		curseforge	dev	^1.2
		unicom-tcp	dev	^2
		borrow_mutex	dev	^1.3
	1	mfio-rt	dev	^1
		vuot	dev	^2
		mailboxxy	dev	^2.0.0
		modrinth	dev	^1
		see-you-later	dev	^0.1
		async-tcp	dev	^0.4
	1	fastudp	dev	^1
		rmw_ttlmap	dev	^1.2.5
	1	sllm-rs	dev	^2.0
		aiven_rs	dev	^1.2.5
		autolog	dev	^1.2
		nats-aflowt	dev	^1.2.5
		retainer_nickbp	dev	^1.2
		edyn	dev	^1.3.0
	1	priority-async-mutex	dev	^1
	2	tang-rs	dev	^0.1.10
		tophat	dev	^1.2.5
		alhc	dev	^1.3.0
		async-gpiod	dev	^2
		async-hidg	dev	^2
		async-nng	dev	^2.0
		async-time-mock-smol	dev	^2
		futures-mockstream	dev	^0.1.4
		poster	dev	^1.2
		solana-payments	dev	^2.0.0
		tdn_permission	dev	^1
		tdn_storage	dev	^1
		trillium-tracing	dev	^1.2.5
	2	async-web-server	dev	^1.2.5
		gsi	dev	^1.0.0
		pipe_macro	dev	^0.1
		starfish-ql	dev	^1.2