Who owns the top Rust crates

Short answer492 people own the 1000 most-downloaded Rust crates on crates.io; 211 of them own two or more. The biggest by real downloads is rust-lang-owner: 43 top crates, about 103,463,584 real downloads a day.

Top 300 owners by real downloads a day

#	Owner	Top crates	Real downloads a day	Biggest
1	rust-lang-owner	43	103,463,584	hashbrown
2	dtolnay	37	87,360,463	syn
3	taiki-e	34	57,283,526	pin-project-lite
4	carllerche	25	49,233,129	bytes
5	Manishearth	28	46,413,324	yoke
6	kennykerr	22	45,352,064	windows-sys
7	epage	26	44,270,649	winnow
8	newpavlov	37	42,860,698	digest
9	djc	29	36,261,667	rustls
10	seanmonstar	19	35,967,014	http
11	tarcieri	27	34,885,553	cpufeatures
12	BurntSushi	20	34,213,373	memchr
13	SimonSapin	24	30,233,209	smallvec
14	cuviper	14	29,541,613	indexmap
15	sfackler	21	27,518,179	socket2
16	dhardy	9	26,271,028	getrandom
17	cramertj	9	25,794,053	futures-core
18	Amanieu	11	23,363,143	parking_lot_core
19	bluss	11	21,380,000	indexmap
20	sffc	10	17,595,314	icu_collections
21	hawkw	12	17,579,615	tracing-core
22	alexcrichton	16	14,970,595	wasi
23	sunfishcode	7	14,100,347	rustix
24	ctz	8	13,951,064	rustls
25	jhpratt	7	13,416,785	time
26	abonander	13	12,727,983	phf_shared
27	KodrAus	4	12,456,125	bitflags
28	daxpedda	9	12,383,460	wasm-bindgen
29	huonw	8	12,241,426	log
30	guybedford	8	11,250,083	wasm-bindgen
31	Darksonn	6	11,192,735	bytes
32	TedDriggs	7	11,085,243	darling_core
33	jswrenn	3	10,841,103	itertools
34	RReverser	7	10,070,974	wasm-bindgen
35	aws-sdk-rust-ci	21	9,770,579	aws-smithy-http
36	vorner	6	8,998,103	once_cell
37	faern	3	8,831,590	parking_lot_core
38	JohnTitor	6	8,708,951	phf_shared
39	jeehoonkang	5	8,633,660	crossbeam-utils
40	wasmtime-publish	12	8,569,541	wit-bindgen
41	fitzgen	9	8,441,953	bumpalo
42	kornelski	11	8,413,866	vcpkg
43	matklad	3	8,265,759	autocfg
44	zbraniecki	4	7,904,132	writeable
45	kwantam	4	6,753,055	unicode-width
46	sujayakar	4	6,753,055	unicode-width
47	hsivonen	5	6,682,461	idna_adapter
48	danburkert	5	6,447,269	prost
49	Ralith	4	5,646,436	quinn-proto
50	kbknapp	2	5,631,140	clap
51	joshlf	2	5,480,417	zerocopy
52	joshtriplett	5	5,332,891	pkg-config
53	larsbergstrom	6	5,203,971	core-foundation
54	fintelia	9	5,126,057	png
55	SergioBenitez	5	5,091,799	version_check
56	mbrubeck	5	4,945,485	core-foundation
57	alicemaz	1	4,638,981	base64
58	marshallpierce	1	4,638,981	base64
59	briansmith	3	4,637,103	untrusted
60	Kimundi	2	4,561,538	stable_deref_trait
61	Lokathor	4	4,555,700	tinyvec
62	oyvindln	2	4,505,609	miniz_oxide
63	mitsuhiko	8	4,432,398	console
64	metajack	6	4,418,080	core-foundation
65	Gankra	5	4,259,498	bit-vec
66	myrrlyn	6	4,245,876	bitvec
67	davidhewitt	5	4,094,340	pyo3-build-config
68	isislovecruft	4	4,085,050	subtle
69	jackpot51	4	4,069,678	redox_syscall
70	raphlinus	3	4,063,000	tinystr
71	pczarn	4	4,055,685	bit-vec
72	Thomasdezeeuw	1	4,034,112	socket2
73	davidpdrsn	4	4,020,085	axum
74	chifflier	7	3,997,066	x509-parser
75	withoutboats	1	3,901,922	heck
76	jplatte	1	3,901,922	heck
77	Ms2ger	1	3,868,589	smallvec
78	alejandro-vaz	1	3,868,589	smallvec
79	Peternator7	2	3,836,274	strum_macros
80	197g	6	3,794,398	png
81	philipc	3	3,735,613	object
82	nevi-me	13	3,733,448	arrow-buffer
83	xhochy	13	3,733,448	arrow-buffer
84	alamb	13	3,733,448	arrow-buffer
85	tustvold	13	3,733,448	arrow-buffer
86	TommyCpp	6	3,691,586	opentelemetry
87	cijothomas	6	3,691,586	opentelemetry
88	Alexhuszagh	7	3,551,208	minimal-lexical
89	Stebalien	3	3,538,367	tempfile
90	djkoloski	7	3,531,658	ptr_meta
91	madsmtm	6	3,525,281	clang-sys
92	LucioFranco	5	3,524,889	tonic
93	kou	12	3,469,452	arrow-buffer
94	kszucs	12	3,469,452	arrow-buffer
95	Jefffrey	12	3,469,452	arrow-buffer
96	dragostis	4	3,402,907	pest
97	nikomatsakis	3	3,401,856	rayon
98	mehcode	7	3,396,983	sqlx-core
99	orlp	2	3,388,774	foldhash
100	retep998	3	3,347,652	winapi
101	GREsau	2	3,336,340	schemars
102	mystor	2	3,325,703	synstructure
103	comex	1	3,284,146	shlex
104	fenhl	1	3,284,146	shlex
105	gyscos	3	3,247,306	zstd-safe
106	nagisa	5	3,240,198	libloading
107	danielrh	4	3,222,294	brotli
108	yaahc	3	3,139,667	displaydoc
109	tkaitchuck	3	3,077,549	ahash
110	paholg	1	3,031,404	typenum
111	4lDO2	2	2,978,214	redox_syscall
112	emilio	5	2,960,035	bindgen
113	dguo	1	2,956,166	strsim
114	maxbachmann	1	2,956,166	strsim
115	astraw	2	2,937,483	iana-time-zone
116	Kijewski	2	2,937,483	iana-time-zone
117	soc	3	2,909,162	dirs-sys
118	JelteF	2	2,883,620	derive_more
119	pcwalton	4	2,853,261	core-foundation
120	yoshuawuyts	7	2,819,780	async-compression
121	fizyk20	1	2,819,219	generic-array
122	novacrazy	1	2,819,219	generic-array
123	lambda-fairy	1	2,791,762	errno
124	japaric	4	2,733,414	cast
125	ordian	1	2,715,071	toml_edit
126	simlay	5	2,691,518	objc2
127	zesterer	2	2,647,211	spin
128	Byron	2	2,583,470	flate2
129	andygrove	9	2,574,608	arrow-buffer
130	Hoverbear	1	2,520,673	url
131	Frommi	1	2,510,979	miniz_oxide
132	kazcw	1	2,441,634	ppv-lite86
133	jpernst	1	2,440,590	stable_deref_trait
134	Storyyeller	1	2,440,590	stable_deref_trait
135	jwilm	2	2,437,542	utf8parse
136	chrisduerr	2	2,437,542	utf8parse
137	valenting	1	2,429,162	idna_adapter
138	sdroege	1	2,394,417	pkg-config
139	lifthrasiir	1	2,369,156	chrono
140	srijs	2	2,351,225	crc32fast
141	npmccallum	3	2,325,395	ciborium
142	justsmth	2	2,319,709	aws-lc-sys
143	skmcgrail	2	2,319,709	aws-lc-sys
144	crypto-alg	2	2,319,709	aws-lc-sys
145	quininer	1	2,299,591	tokio-rustls
146	jonasbb	2	2,297,728	serde_with
147	tailhook	3	2,290,738	quick-error
148	olix0r	1	2,290,495	h2
149	bheisler	3	2,251,248	criterion-plot
150	RazrFalcon	4	2,224,145	memmap2
151	zicklag	1	2,163,249	cfg_aliases
152	agalakhov	2	2,161,279	tungstenite
153	daniel-abramov	2	2,161,279	tungstenite
154	zeenix	6	2,156,828	zvariant_utils
155	Geal	1	2,156,544	nom
156	rkuhn	1	2,090,796	sync_wrapper
157	robjtede	4	2,080,071	async-compression
158	pyfisch	3	2,054,851	httpdate
159	dvdhrm	1	2,051,196	r-efi
160	Nugine	3	2,032,843	outref
161	krisprice	1	2,000,731	ipnet
162	alex	2	1,977,536	openssl-sys
163	KokaKiwi	1	1,974,541	hex
164	jedisct1	1	1,957,258	siphasher
165	mcountryman	1	1,931,920	simd-adler32
166	38	3	1,928,504	plotters
167	AaronErhardt	3	1,928,504	plotters
168	Soveu	1	1,928,288	tinyvec_macros
169	davidbarsky	1	1,919,774	tracing-subscriber
170	mvdnes	1	1,878,351	spin
171	akhilles	2	1,846,946	crc
172	Gilnaa	2	1,829,521	memoffset
173	NobodyXu	3	1,812,101	async-compression
174	folkertdev	3	1,796,949	zlib-rs
175	colin-kiegel	3	1,788,827	derive_builder
176	sophiajt	1	1,787,707	nu-ansi-term
177	sholderbach	1	1,787,707	nu-ansi-term
178	mxinden	2	1,783,426	quinn-udp
179	VoidStarKat	2	1,725,112	half
180	ValarDragon	5	1,721,914	ark-std
181	ebfull	2	1,717,432	ff
182	str4d	2	1,717,432	ff
183	nox	1	1,715,895	serde_urlencoded
184	thomcc	3	1,711,643	libsqlite3-sys
185	rib	2	1,707,547	jni-sys
186	allan2	2	1,699,142	memmap2
187	rutrum	1	1,687,092	convert_case
188	bkchr	1	1,677,715	proc-macro-crate
189	zakarumych	1	1,659,839	allocator-api2
190	RalfJung	1	1,651,833	memoffset
191	ibraheemdev	1	1,597,322	matchit
192	reem	2	1,533,827	ordered-float
193	berkus	2	1,531,503	criterion-plot
194	lemmih	2	1,531,503	criterion-plot
195	ABorgna	1	1,525,364	petgraph
196	tafia	1	1,525,182	quick-xml
197	Mingun	1	1,525,182	quick-xml
198	dralley	1	1,525,182	quick-xml
199	illicitonion	2	1,521,164	num_enum
200	jrraymond	1	1,507,079	fixedbitset
201	james7132	1	1,507,079	fixedbitset
202	gwenn	2	1,491,539	libsqlite3-sys
203	pkgw	1	1,467,123	vcpkg
204	mcgoo	1	1,467,123	vcpkg
205	waych	1	1,467,123	vcpkg
206	Nemo157	2	1,464,670	bs58
207	complexspaces	2	1,449,953	rustls-platform-verifier
208	nvzqz	1	1,442,265	static_assertions
209	algesten	2	1,419,743	ureq
210	jsha	2	1,419,743	ureq
211	ia0	1	1,416,151	data-encoding
212	sunshowers	2	1,354,245	camino
213	tbu-	2	1,348,732	memmap2
214	kyren	1	1,322,396	hashlink
215	shepmaster	3	1,290,240	twox-hash
216	Marwes	2	1,249,200	combine
217	sebcrozet	3	1,222,323	approx
218	AldaronLau	2	1,220,330	whoami
219	etemesi254	2	1,214,550	zune-core
220	Dirbaio	2	1,196,247	embedded-io
221	jeromefroe	1	1,188,797	lru
222	awxkee	2	1,178,493	moxcms
223	CreepySkeleton	4	1,171,618	proc-macro-error
224	AltSysrq	2	1,168,213	proptest
225	nearprotocol-ci	2	1,157,370	borsh
226	stlankes	1	1,146,485	hermit-abi
227	mkroening	1	1,146,485	hermit-abi
228	jturner314	3	1,143,446	matrixmultiply
229	magiclen	3	1,137,243	enum-ordinalize
230	webdesus	1	1,136,794	fs_extra
231	fafhrd91	3	1,135,542	pyo3
232	eira-fransham	1	1,132,952	crunchy
233	xacrimon	1	1,112,131	dashmap
234	jdm	2	1,112,023	string_cache
235	weihanglo	1	1,077,003	home
236	linus-mullvad	2	1,064,037	system-configuration
237	behnam	1	1,058,529	unicode-bidi
238	sarah-quinones	3	1,048,746	equator-macro
239	sebasmagri	1	1,046,756	env_logger
240	de-vri-es	1	1,039,105	memmap2
241	hannobraun	2	1,033,669	inotify
242	rnijveld	1	1,033,404	zlib-rs
243	jcreekmore	1	1,031,308	pem
244	pvdrz	1	1,018,499	bindgen
245	hjr3	1	989,658	hyper-timeout
246	GnomedDev	2	984,274	proc-macro-error2
247	nical	1	980,358	android_system_properties
248	Plecra	1	977,272	zip
249	Pr0methean	1	977,272	zip
250	dignifiedquire	3	970,426	num-bigint-dig
251	mgeisler	2	965,415	textwrap
252	hkratz	1	965,252	simdutf8
253	dpc	1	961,141	fallible-iterator
254	bluejekyll	3	960,518	hickory-proto
255	cesarb	1	934,883	constant_time_eq
256	mrhooray	1	930,857	crc
257	bikeshedder	2	922,220	deadpool
258	tobz	3	919,877	quanta
259	Dylan-DPC-zz	3	918,092	rgb
260	rodrimati1992	2	913,478	const_format
261	robinst	1	912,637	fancy-regex
262	keith-hall	1	912,637	fancy-regex
263	oconnor663	2	911,622	blake3
264	est31	2	903,420	rcgen
265	steffengy	1	901,416	schannel
266	notgull	1	895,322	event-listener-strategy
267	havarnov	1	883,407	multimap
268	brendanzab	2	882,148	approx
269	TimonPost	2	865,861	crossterm
270	tormol	2	858,471	encode_unicode
271	palfrey	2	857,578	serial_test
272	udoprog	2	857,263	xmlparser
273	GuillaumeGomez	2	854,138	sysinfo
274	KyleMayes	1	833,763	clang-sys
275	ghost_3672	1	828,247	bincode
276	bt	1	826,249	urlencoding
277	harryfei	1	817,673	which
278	Xaeroxe	1	817,673	which
279	asomers	2	813,059	mockall
280	meithecatte	2	810,600	enumflags2
281	jethrogb	1	797,490	cexpr
282	darfink	1	784,547	tap
283	jrobsonchase	1	778,423	jni
284	stanislav-tkach	1	778,423	jni
285	dmitry-timofeev	1	778,423	jni
286	bjorn3	2	763,545	bzip2
287	icefoxen	1	758,903	oorandom
288	la10736	2	747,229	rstest
289	cgwalters	1	740,149	tar
290	droundy	1	736,675	arrayref
291	theotherphil	1	735,113	image
292	eminence	2	729,293	terminal_size
293	oli-obk	1	722,103	cargo_metadata
294	LukasKalbertodt	1	718,877	litrs
295	3Hren	2	714,788	rmp
296	ParkMyCar	1	712,106	compact_str
297	andrewhickman	2	705,673	fs-err
298	ogoffart	1	703,484	document-features
299	Keats	1	698,399	jsonwebtoken
300	pacman82	1	689,620	atoi

Owners from the crates.io owners API (users only), fetched Oct 24, 2026. Real downloads = each crate's quiet-day median, summed. Shared crates count for every owner.

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Top 300 owners by real downloads a day

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