Supported Packages

On each commit, Github Actions CI automatically compiles all supported packages with GopherJS and runs their tests:

Name	Supported	Comment
archive
-- tar	✅ yes
-- zip	✅ yes
bufio	✅ yes
builtin	✅ yes
bytes	✅ yes
compress
-- bzip2	✅ yes
-- flate	✅ yes
-- gzip	✅ yes
-- lzw	✅ yes
-- zlib	✅ yes
container
-- heap	✅ yes
-- list	✅ yes
-- ring	✅ yes
context	✅ yes
crypto	✅ yes
-- aes	✅ yes
-- cipher	✅ yes
-- des	✅ yes
-- dsa	✅ yes
-- ecdsa	✅ yes
-- ed25519	✅ yes
-- elliptic	✅ yes
-- hmac	✅ yes
-- md5	✅ yes
-- rand	✅ yes
-- rc4	✅ yes
-- rsa	✅ yes
-- sha1	✅ yes
-- sha256	✅ yes
-- sha512	✅ yes
-- subtle	✅ yes
-- tls	❌ no
-- x509	✅ yes
-- -- pkix	✅ yes
database
-- sql	✅ yes
-- -- driver	✅ yes
debug
-- dwarf	✅ yes
-- elf	✅ yes
-- gosym	☑️ partially	on binaries generated by gc
-- macho	✅ yes
-- pe	✅ yes
-- plan9obj	✅ yes
embed	❌ no	Not implemented yet: https://github.com/gopherjs/gopherjs/issues/997.
encoding
-- ascii85	✅ yes
-- asn1	✅ yes
-- base32	✅ yes
-- base64	✅ yes
-- binary	✅ yes
-- csv	✅ yes
-- gob	✅ yes
-- hex	✅ yes
-- json	✅ yes
-- pem	✅ yes
-- xml	✅ yes
errors	✅ yes
expvar	✅ yes
flag	✅ yes
fmt	✅ yes
go
-- ast	✅ yes
-- build	❌ no
-- build/constraint	✅ yes
-- constant	✅ yes
-- doc	✅ yes
-- format	✅ yes
-- importer	❌ no
-- parser	✅ yes
-- printer	✅ yes
-- scanner	✅ yes
-- token	✅ yes
-- types	❌ no
hash	✅ yes
-- adler32	✅ yes
-- crc32	✅ yes
-- crc64	✅ yes
-- fnv	✅ yes
-- maphash	✅ yes
html	✅ yes
-- template	✅ yes
image	✅ yes
-- color	✅ yes
-- -- palette	✅ yes
-- draw	✅ yes
-- gif	✅ yes
-- jpeg	✅ yes
-- png	✅ yes
index
-- suffixarray	✅ yes
io	✅ yes
-- fs	✅ yes
-- ioutil	✅ yes
log	✅ yes
-- syslog	❌ no
math	✅ yes
-- big	✅ yes
-- bits	✅ yes
-- cmplx	✅ yes
-- rand	✅ yes
mime	✅ yes
-- multipart	✅ yes
-- quotedprintable	✅ yes
net	☑️ partially	network is simulated, supports only localhost connections
-- http	☑️ partially	client only, emulated via Fetch/XMLHttpRequest APIs;
node.js requires polyfill
-- -- cgi	❌ no
-- -- cookiejar	✅ yes
-- -- fcgi	✅ yes
-- -- httptest	☑️ partially
-- -- httputil	☑️ partially
-- -- pprof	❌ no
-- mail	✅ yes
-- rpc	☑️ partially	data structures only (no net)
-- -- jsonrpc	✅ yes
-- smtp	☑️ partially	data structures only (no net)
-- textproto	✅ yes
-- url	✅ yes
os	☑️ partially	node.js only
-- exec	☑️ partially	node.js only
-- signal	☑️ partially	node.js only
-- user	☑️ partially	node.js only
path	✅ yes
-- filepath	✅ yes
plugin	❌ no
reflect	✅ yes
regexp	✅ yes
-- syntax	✅ yes
runtime	☑️ partially	SetMutexProfileFraction, SetFinalizer, ReadMemStats unsupported
-- metrics	☑️ partially	Same as runtime.
-- cgo	❌ no
-- debug	❌ no
-- pprof	❌ no
-- race	❌ no
-- trace	❌ no
sort	✅ yes
strconv	✅ yes
strings	✅ yes
sync	✅ yes
-- atomic	✅ yes
syscall	☑️ partially	node.js only
testing	☑️ partially	AllocsPerRun and T.Helper are unsupported.
-- iotest	✅ yes
-- fstest	✅ yes
-- quick	✅ yes
text
-- scanner	✅ yes
-- tabwriter	✅ yes
-- template	✅ yes
-- -- parse	✅ yes
time	✅ yes	UTC and Local only (see issue)
-- tzdata	✅ yes
unicode	✅ yes
-- utf16	✅ yes
-- utf8	✅ yes
unsafe	❌ no