Heapless

Heapless is used at run time in 1,122 crates (of which 204 optionally). It is a direct run-time dependency in 402 crates. It's used at build time in 1 crate (). It's used only as a dev dependency in 101 crates (of which 29 directly).

Number of dependers	Heapless version	Downloads/month
387	0.8.0	275K
648	0.7.17	476K
52	0.6.1	7.0K
119	0.5.6	8.8K
17	0.4.4	100
1	0.2.7	0

Depender (with downloads and own rev deps)			Heapless version
5.0M	194	ipnet	optional	^0
1.7M	101	aead	optional	^0.7
673K	40	zvariant	optional	^0.8.0
204K	48	rstar		^0.8
340K	209	postcard	optional	^0.7.0
81K	44	smoltcp		^0.8
81K	10	wasmer-wasix		^0.7.16
73K	66	embassy-sync		^0.8
42K	2	serde_prometheus		^0.8
30K	108	usb-device		^0.8
23K	62	embassy-time		^0.8
66K	24	domain	optional	^0.8
66K	6	octseq	optional	^0.8
61K	26	serde-json-core	optional	^0.7
59K	29	crc-any	optional	^0.8
16K	8	pgrx		^0.7.16
49K	44	ts-rs	optional	>=0.7, <0.9
13K	19	esp-idf-hal		^0.8
12K	23	embedded-svc		^0.8
13K	2	esp-idf-part		^0.8.0
10K	9	iso7816		^0.7
8.3K	22	esp-idf-svc		^0.8
7.7K	63	cortex-m-rtic		^0.7.7
7.3K	8	embassy-usb		^0.8
6.9K	3	embassy-net		^0.8
6.2K	7	esp-hal-common		^0.8.0
6.1K	1	embedded-test		^0.8.0
4.8K	13	ansi-parser		^0.8.0
3.1K	8	palaver		^0.5
3.0K	13	heapless-bytes		^0.8
2.9K	18	embedded-sdmmc		^0.8
2.8K	4	mqttrs		^0.7
2.3K	9	coap-message-utils		^0.5
2.2K	5	minimq		^0.7
7.0K	3	mipidsi	optional	^0.8.0
2.1K	3	coap-message-implementations		^0.5
6.1K	6	st7789	optional	^0.7
1.7K	5	flacenc		^0.8.0
1.5K		esp-wifi		^0.8.0
1.3K	7	atat		^0.8
1.3K		anise		^0.8.0
1.1K	1	rtic-sync		^0.8
1.1K	1	picoserve		^0.8.0
1.0K		foundation-urtypes		^0.8
1.0K		miniconf_mqtt		^0.8
1.0K	7	stak-primitive		^0.8.0
1.0K		foundation-ur		^0.8
800	3	smoltcp-nal		^0.7
800	2	sans-io-runtime		^0.8
750	1	embedded-nal-coap		^0.7
750	1	embedded-nal-minimal-coapserver		^0.5
700	1	coap-message-demos		^0.7
700	3	embedded-tls		^0.8
700	1	embedded-websocket		^0.7.16
600	1	postcard-rpc		^0.8.0
600	3	nmea		^0.7
600	2	ockam_executor		^0.8
550		reqwless		^0.8
500	2	kanata-keyberon		^0.7.16
500		foundation-firmware		^0.8
470		komac		^0.8.0
420	2	gctex		^0.8.0
400	1	udevrs		^0.7
310		ethercrab		^0.8.0
310	2	esp32-nimble		^0.8.0
1.4K	3	serde_at	optional	^0.8
300	4	generic-btree		^0.7.16
290	3	cbor-smol		^0.7
280		embedded-c-sdk-bind-hal		^0.8.0
240	2	loro-delta		^0.8.0
240	2	ctap-types		^0.7
240	8	pgx		^0.7.16
240	14	wasmrs-codec		^0.7
230	2	ushell		^0.7.1
220	1	ethercrab-wire		^0.8.0
220		crosstrait		^0.8
220		ublox-sockets		^0.7
220		miniconf_cli		^0.8.0
210		xdevs-no-std		^0.8
210	11	cortex-m-rtfm		^0.5.0
190	1	usbd-human-interface-device		^0.8
180	1	eb90		^0.7
180	2	trackball		^0.8.0
170		heapless_matrix		^0.8.0
170	1	wasm4-impl		^0.7.9
170	1	nrf-softdevice		^0.8.0
170		rp-rs-radio-clock		^0.8
1.0K		every_variant	optional	^0.7.0
160		sma-proto		^0.8.0
160		rktk		^0.8.0
150		se05x		^0.7
140		riot-wrappers		^0.7
140		psf-rs		^0.8.0
900	1	random_variant	optional	^0.7
130		esp-ieee802154		^0.8.0
130	2	kiibohd-hall-effect		^0.7
120		rust-mqtt		^0.8
120		moondancer		^0.8.0
120	2	rmk		^0.8.0
110		max11300		^0.8
850	1	edge-executor	optional	^0.8
110	4	tracing-serde-structured		^0.7.10
100		kiibohd-hall-effect-keyscanning		^0.7
100	7	kll-core		^0.7
		usbd-ccid		^0.7
		alrulab-core		^0.8.0
	7	canadensis_core		^0.7.7
		socketcand		^0.8.0
	4	littlefs2		^0.7
		hwatch		^0.8.0
	1	i2c-pio		^0.8.0
		is31fl3743b		^0.7
		rx8900		^0.8
		esp-hal-mfrc522		^0.8.0
	2	tlv-rs		^0.7.16
		ockam_entity		^0.7
		shproto-rs		^0.7.16
		ansi_parser_extended		^0.8.0
		barebones-watchface		^0.5.1
	1	embedded-update		^0.7
		nutp		^0.8
700		wasm-msgpack	optional	^0.7
	1	ppproto		^0.7.16
	3	hmac-sha		^0.7
	2	klogger		^0.7.14
	1	canadensis_pnp_client		^0.7.7
	1	ssp		^0.7
	1	nrfxlib		^0.7
		hal-sim		^0.8
	1	noproto		^0.8
	1	edge-dhcp		^0.8
		riscv-slic		^0.8.0
		scalesocket		^0.8.0
	3	hid-io-protocol		^0.7
	1	edge-http		^0.8
650		serde-csv-core	optional	^0.7.16
	1	canadensis_serial		^0.7.7
	1	hid-io-core		^0.7
		ltc681x		^0.8.0
		pacmog		^0.7.16
		Rusty_CryptoAuthLib		^0.5.5
	2	mqttrust		^0.7
	1	seeed-erpc		^0.5
		tinygif		^0.7.16
		zmodem2		^0.8.0
		ais		^0.7
		bl602-sdk		^0.7.3
	5	embedded-nal-tcpextensions		^0.7
		nostr-nostd		^0.7.14
		canadensis_bxcan		^0.7
		zip_parser		^0.7
		factbird-common		^0.7
	5	kaspa-wallet-core		^0.7.16
		blinq		^0.7.0
	2	mfrc522		^0.7
		writebuf-core		^0.7
		infinity-sampler		^0.8
	1	a4-core		^0.7.8
	2	canadensis_data_types		^0.7.7
	1	hm11		^0.4.1
		prinThor		^0.8.0
	3	canadensis_can		^0.7.0
	1	minireq		^0.8
		blues-notecard		^0.7
	1	embedded-nano-mesh		^0.7.0
	1	fuga-json-seq-parser		^0.7.16
		max32660-hal		0.7.*
	2	pinetime-watchface		^0.5.1
	2	sunset		^0.8
		esp-at-nal		^0.7.16
	1	expanse		^0.5.1
		nuttx-embedded-hal		^0.7.10
		pca9539		^0.8.0
	1	phm		^0.7.10
	1	mqttrust_core		^0.7
		sirena		^0.7
		veriform		^0.5
		logz		^0.7.13
		rustot		^0.7.0
	2	canadensis		^0.7.0
	1	edge-mdns		^0.8
		sidh		^0.7.7
		urpc		^0.5.1
		can_aerospace_lite		^0.7.4
		embedded-plots		^0.7.3
		esp8266-at-driver		^0.7
	1	futex-queue		^0.7
		keyberon		^0.5
	1	pinetime-lvgl		^0.5.3
		disco-rs		^0.7
		anachro-server		^0.5.5
	2	byte-slab		^0.7.5
		google-cloud-iot-jwt		^0.7.9
		rak811-at-driver		^0.7
		choreographer		^0.7.1
		crdt-richtext		^0.7.16
		esp8266-wifi-serial		^0.7
		jh71xx-hal		^0.7
		scd30		^0.4.2
	3	signature_core		^0.7
		drogue-tls		^0.7
	2	graphite_server		^0.7.15
		nrf-modem-nal		^0.7.10
		nucleo-h7xx		^0.7.16
		rand_pwd		^0.5.5
550	5	rmodbus	optional	^0.8.0
	3	rubble		^0.5.1
		stm32wb-hal		^0.5.3
		ascii-osd-hud		^0.6
		booster		^0.7
	3	ctaphid-dispatch		^0.7
		embedded-fps		^0.7
		fido-authenticator		^0.7
		finny		^0.7
	1	moonboot		^0.7
	1	pinetime-mynewt		^0.5.1
		verdigris		^0.6
		zipng		^0.7.16
		alg-grid		^0.5
		drogue-http-client		^0.5
		robokit		^0.7
		usbd-ethernet		^0.7
		drogue-esp8266		^0.5.5
	1	edge-std-nal-async		^0.8
		embassy-net-esp-hosted		^0.8
		leak-detect-allocator		^0.5.4
		mqtt-sn		^0.7.7
		orouter-serial		^0.7
		rart-rs		^0.7.10
		svisual		^0.7
		vesc-comm		^0.4.1
		algo_no_std		^0.7.16
		bandsocks-sand		^0.5
	1	drogue-ffi-compat		^0.5.5
		es-wifi-driver		^0.7
		fuga-remo-api		^0.7.16
		mvstore		^0.7
		ufmt-utils		^0.7.16
		blipper		^0.5.1
		digital-filter		^0.5.1
	1	dmx-rdm		^0.8
		drogue-es-wifi		^0.5.6
		etherage		^0.7.16
	1	graphite_magma		^0.7.15
		log-to-defmt		^0.7
		synth-utils		^0.7
	3	trussed		^0.7
		usbd-ctaphid		^0.7
	1	vhrdcan		^0.5.6
		anachro-forth-core		^0.7.8
	3	drogue-network		^0.5
		handdrawn-watchface		^0.5.1
		keytokey		^0.4.4
	1	lpc55-rtic		^0.6.0
		mcumeter		^0.7
		thermostat-eem		^0.7
		timesource		^0.7.8
		drgdfu		^0.7
		esp-at-driver		^0.6.1
		esp32-wroom-rp		^0.7.16
		lc3-codec		^0.7.10
	1	lorawan-device		^0.7
		mnemos		^0.7.10
		nmea-0183-validator		^0.7.10
	1	rucos		^0.7
		state-governor		^0.7.4
		uhr		^0.4.2
		core-serde-json		^0.5.0
		crankstart		^0.6.1
500	3	flexiber	optional	^0.7.0
	1	kiibohd-hid-io		^0.7.16
		mks979b		^0.7.10
		multi-mission-library-rs		^0.8.0
		mwatch-kernel-stm32l4		^0.4.2
		smbus-adapter		^0.8
		tiny-nmea		^0.7.5
		ublox-cellular-rs		^0.7
		ublox-short-range-rs		^0.5
		watchface		^0.5
		wire4		^0.5.2
		axum-postcard		^0.8
		cheetah-game-realtime-protocol		^0.7.16
		drogue-rak811		^0.5.5
		eui-no-std		^0.5
		itla		^0.7
	1	kiibohd-usb		^0.7
		light-cli		^0.4.2
		lpwan		^0.5.5
		n2k		^0.5.5
		phm-worker		^0.7.10
		rustuino		^0.7.7
	1	usb-pd		^0.7.16
		wurth-calypso		^0.7.16
		embassy-net-adin1110		^0.8
		embedded-exfat		^0.7
		itsdns		^0.7
		kiibohd-core-ffi		^0.7
	1	liboscore-cryptobackend		^0.7
		rfm69-async		^0.7.16
		rustworks		^0.7
		ssd1362		^0.5
		at-cryptoauth		^0.7
	2	mwatch_kernel		^0.4.2
		oath-authenticator		^0.7
	2	phm-icd		^0.7.10
	1	purezen		^0.4
		quicklog		^0.7.16
		vax-number		^0.7
	3	apdu-dispatch		^0.7
		dango-core		^0.7.16
		gmqtt		^0.7.7
		junctor		^0.5.5
		mini-rxtx		^0.7
	1	monster_chess		^0.8.0
		myser		^0.7.15
		quectel-bg77		^0.7.3
		trenchcoat		^0.7
	1	w5500-tls		^0.8
	1	canadensis_udp		^0.7.7
		erdnuss-comms		^0.7.0
	1	kiibohd-hid-io-ffi		^0.7.10
		kolibri-embedded-gui		^0.7
		nrf52-bin-logger		^0.5.1
	1	ockam_signature_core		^0.6
		stabilizer		^0.7.16
		ad7147		^0.7.16
	2	anachro-icd		^0.5.5
	2	dcs2		^0.7.16
	1	embedded-nal-minimal-coaptcpserver		^0.7
		hc14-at-rs		^0.7
		knetrs		^0.7.16
		stretch2		^0.7.9
		wio_terminal		^0.5
		coap-gatt-utils		^0.7.16
		coap-zero		^0.7
		compact-map		^0.8
		fusb302b		^0.7.16
		hwatch-ansi-parser		^0.6.1
		is31fl3733		^0.7.16
		norfs		^0.7
		rs-matter		^0.7.16
		seeed-lora-e5-at-commands		^0.8.0
		senml-deser		^0.7
		smoltcp-rmodbus		^0.8.0
		sunset-async		^0.8
		tfmt		^0.8.0
490	17	ockam_node	optional	^0.8
370	1	justjson	optional	^0.8.0
290		ockam_transport_ble	optional	^0.8.0
250		bin-utils	optional	^0.7.16
250	2	encdec-base	optional	^0.7.16
190	1	ft6x06	optional	^0.7
130		rsiot	optional	^0.8.0
110	1	micropb	optional	^0.8
110		pybadge-high	optional	^0.7.16
	1	channel-bridge	optional	^0.8
		msgpck	optional	^0.7.16
		ockam_vault_core	optional	^0.7
	2	postcard-bindgen-core	optional	^0.8.0
	2	ser-write	optional	^0.8
		adafruit-bluefruit-protocol	optional	^0.8
	1	blipper-shared	optional	^0.5.5
		creature_feature	optional	^0.7.16
		edge-frame	optional	^0.8
		embedded-msgpack	optional	^0.7
		esp-partition-table	optional	^0.7
		fastprio	optional	^0.7.16
		flex-dns	optional	^0
	2	kiibohd-keyscanning	optional	^0.7
		kvs	optional	^0.7.15
		macbinary	optional	^0.7.16
		mipidsi-async	optional	^0.7.16
		nb-executor	optional	^0.7.10
		no_alloc	optional	^0.5.5
		ockam_credential	optional	^0.6
		orouter-wireless	optional	^0.7
		sacn-unofficial	optional	^0.5.3
		satrs	optional	^0.7
		satrs-core	optional	^0.7
		simple-tlv	optional	^0.6.0
		stor	optional	^0.7.9
		systemview-target	optional	^0.7
		ts-rs-json-value	optional	^0.7
		unchecked-std	optional	^0.8.0
281K	69	pretty-hex	dev	^0.8
7.8K	42	stm32f4xx-hal	dev	^0.8
7.7K	15	rp-pico	dev	^0.7.16
5.5K	2	esp32s3-hal	dev	^0.8.0
5.4K	9	rtic	dev	^0.8
5.3K	2	esp32s2-hal	dev	^0.8.0
4.5K	6	nu-pretty-hex	dev	^0.8
1.4K	33	stm32f1xx-hal	dev	^0.7.16
1.0K		feather_m0	dev	^0.7
800		feather_m4	dev	^0.7
500	3	serde-indexed	dev	^0.7.16
380	8	esp32-hal	dev	^0.8.0
380	3	esp32c3-hal	dev	^0.8.0
250		riscv-peripheral	dev	^0.8.0
180	2	esp32c6-hal	dev	^0.8.0
120		esp32c2-hal	dev	^0.8.0
110	2	toad-msg	dev	^0.7
100	6	stm32l4xx-hal	dev	^0.5
		micromap	dev	^0.8.0
	1	kwap-msg	dev	^0.7
	1	dwm1001	dev	^0.7.8
	1	stm32l0xx-hal	dev	^0.7.1
	1	atoi_radix10	dev	^0.7
	1	ufmt_float	dev	^0.7
		esp32h2-hal	dev	^0.8.0
	1	flem	dev	^0.7
	2	canadensis_encoding	dev	^0.7.0
	1	sh1106	dev	^0.7.10
		cmim	dev	^0.5.1
	1	lorawan	dev	^0
		ch58x-hal	dev	^0.8.0
	2	stm32f1xx-hal-bxcan	dev	^0.5.6
		adafruit-kb2040	dev	^0.7.16
		mwatch-sdk	dev	^0.4.1
		canadensis_macro	dev	^0.7.7
		ds1302	dev	^0.6
		lpc55s6x-hal	dev	^0.5
	1	lpc55-hal	dev	^0.7
		pulau-rs	dev	^0.7.16
		htpa32x32d	dev	^0.4.0
		oled_async	dev	^0.7.10
		gsw	dev	^0.7
		itsybitsy_m0	dev	^0.7
		p1am_100	dev	^0.7
		xmc4-hal	dev	^0.8.0
		caprand	dev	^0.8
		todc-mem	dev	^0.7