# “Hello, World!”

So... uh... this is a bit embarrassing. But we don't have a plain "Hello, World!" challenge yet (despite having 35 variants tagged with , and counting). While this is not the most interesting code golf in the common languages, finding the shortest solution in certain esolangs can be a serious challenge. For instance, to my knowledge it is not known whether the shortest possible Brainfuck solution has been found yet.

Furthermore, while all of Wikipedia (the Wikipedia entry has been deleted but there is a copy at archive.org ), esolangs and Rosetta Code have lists of "Hello, World!" programs, none of these are interested in having the shortest for each language (there is also this GitHub repository). If we want to be a significant site in the code golf community, I think we should try and create the ultimate catalogue of shortest "Hello, World!" programs (similar to how our basic quine challenge contains some of the shortest known quines in various languages). So let's do this!

## The Rules

• Each submission must be a full program.
• The program must take no input, and print Hello, World! to STDOUT (this exact byte stream, including capitalization and punctuation) plus an optional trailing newline, and nothing else.
• The program must not write anything to STDERR.
• If anyone wants to abuse this by creating a language where the empty program prints Hello, World!, then congrats, they just paved the way for a very boring answer.

Note that there must be an interpreter so the submission can be tested. It is allowed (and even encouraged) to write this interpreter yourself for a previously unimplemented language.

• Submissions are scored in bytes, in an appropriate (pre-existing) encoding, usually (but not necessarily) UTF-8. Some languages, like Folders, are a bit tricky to score - if in doubt, please ask on Meta.
• This is not about finding the language with the shortest "Hello, World!" program. This is about finding the shortest "Hello, World!" program in every language. Therefore, I will not mark any answer as "accepted".
• If your language of choice is a trivial variant of another (potentially more popular) language which already has an answer (think BASIC or SQL dialects, Unix shells or trivial Brainfuck-derivatives like Alphuck), consider adding a note to the existing answer that the same or a very similar solution is also the shortest in the other language.

As a side note, please don't downvote boring (but valid) answers in languages where there is not much to golf - these are still useful to this question as it tries to compile a catalogue as complete as possible. However, do primarily upvote answers in languages where the authors actually had to put effort into golfing the code.

For inspiration, check the Hello World Collection.

## The Catalogue

The Stack Snippet at the bottom of this post generates the catalogue from the answers a) as a list of shortest solution per language and b) as an overall leaderboard.

## Language Name, N bytes


where N is the size of your submission. If you improve your score, you can keep old scores in the headline, by striking them through. For instance:

## Ruby, <s>104</s> <s>101</s> 96 bytes


If there you want to include multiple numbers in your header (e.g. because your score is the sum of two files or you want to list interpreter flag penalties separately), make sure that the actual score is the last number in the header:

## Perl, 43 + 2 (-p flag) = 45 bytes


You can also make the language name a link which will then show up in the snippet:

## [><>](https://esolangs.org/wiki/Fish), 121 bytes


/* Configuration */

var QUESTION_ID = 55422; // Obtain this from the url
// It will be like https://XYZ.stackexchange.com/questions/QUESTION_ID/... on any question page
var COMMENT_FILTER = "!)Q2B_A2kjfAiU78X(md6BoYk";
var OVERRIDE_USER = 8478; // This should be the user ID of the challenge author.

/* App */

return "https://api.stackexchange.com/2.2/questions/" +  QUESTION_ID + "/answers?page=" + index + "&pagesize=100&order=desc&sort=creation&site=codegolf&filter=" + ANSWER_FILTER;
}

}

jQuery.ajax({
method: "get",
dataType: "jsonp",
crossDomain: true,
success: function (data) {
data.items.forEach(function(a) {
});
comment_page = 1;
}
});
}

jQuery.ajax({
method: "get",
dataType: "jsonp",
crossDomain: true,
success: function (data) {
data.items.forEach(function(c) {
if (c.owner.user_id === OVERRIDE_USER)
});
else process();
}
});
}

var SCORE_REG = /<h\d>\s*([^\n,<]*(?:<(?:[^\n>]*>[^\n<]*<\/[^\n>]*>)[^\n,<]*)*),.*?(\d+)(?=[^\n\d<>]*(?:<(?:s>[^\n<>]*<\/s>|[^\n<>]+>)[^\n\d<>]*)*<\/h\d>)/;

function getAuthorName(a) {
return a.owner.display_name;
}

function process() {
var valid = [];

var body = a.body;
if(OVERRIDE_REG.test(c.body))
body = '<h1>' + c.body.replace(OVERRIDE_REG, '') + '</h1>';
});

var match = body.match(SCORE_REG);
if (match)
valid.push({
user: getAuthorName(a),
size: +match[2],
language: match[1],
});
else console.log(body);
});

valid.sort(function (a, b) {
var aB = a.size,
bB = b.size;
return aB - bB
});

var languages = {};
var place = 1;
var lastSize = null;
var lastPlace = 1;
valid.forEach(function (a) {
if (a.size != lastSize)
lastPlace = place;
lastSize = a.size;
++place;

.replace("{{NAME}}", a.user)
.replace("{{LANGUAGE}}", a.language)
.replace("{{SIZE}}", a.size)

var lang = a.language;
lang = jQuery('<a>'+lang+'</a>').text();

languages[lang] = languages[lang] || {lang: a.language, lang_raw: lang, user: a.user, size: a.size, link: a.link};
});

var langs = [];
for (var lang in languages)
if (languages.hasOwnProperty(lang))
langs.push(languages[lang]);

langs.sort(function (a, b) {
if (a.lang_raw.toLowerCase() > b.lang_raw.toLowerCase()) return 1;
if (a.lang_raw.toLowerCase() < b.lang_raw.toLowerCase()) return -1;
return 0;
});

for (var i = 0; i < langs.length; ++i)
{
var language = jQuery("#language-template").html();
var lang = langs[i];
language = language.replace("{{LANGUAGE}}", lang.lang)
.replace("{{NAME}}", lang.user)
.replace("{{SIZE}}", lang.size)
language = jQuery(language);
jQuery("#languages").append(language);
}

}
body {
text-align: left !important;
display: block !important;
}

width: 290px;
float: left;
}

#language-list {
width: 500px;
float: left;
}

font-weight: bold;
}

table td {
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="language-list">
<h2>Shortest Solution by Language</h2>
<table class="language-list">
<tr><td>Language</td><td>User</td><td>Score</td></tr>
<tbody id="languages">

</tbody>
</table>
</div>
<tr><td></td><td>Author</td><td>Language</td><td>Size</td></tr>

</tbody>
</table>
</div>
<table style="display: none">
</tbody>
</table>
<table style="display: none">
<tbody id="language-template">
</tbody>
</table>

• @isaacg No it doesn't. I think there would be some interesting languages where it's not obvious whether primality testing is possible. – Martin Ender Aug 28 '15 at 13:56
• If the same program, such as "Hello, World!", is the shortest in many different and unrelated languages, should it be posted separately? – aditsu quit because SE is EVIL Aug 28 '15 at 15:33
• @mbomb007 Well it's hidden by default because the three code blocks take up a lot of space. I could minify them so that they are a single line each, but I'd rather keep the code maintainable in case bugs come up. – Martin Ender Aug 28 '15 at 19:34
• @ETHproductions "Unlike our usual rules, feel free to use a language (or language version) even if it's newer than this challenge." Publishing the language and an implementation before posting it would definitely be helpful though. – Martin Ender Aug 29 '15 at 23:01
• @MartinEnder ... Almost. If two BF solutions have the same size, the one with smaller lexicographical order will take smaller number of bytes in Unary. Of course the smallest Unary solution translated to BF is guaranteed to be smallest. – user202729 May 20 '18 at 10:20

## Geom++, 17 bytes

" Hello, World! "


Yes, the spaces around the string are necessary.

## Lines, 13 bytes

Hello, World!


There are no control characters, so the string is just output.

## Gray Snail, 22 bytes

OUTPUT "Hello, World!"


OUTPUT just outputs the string.

## PureStack, 18 bytes

"Hello, World!"
!~


Pushes "Hello, World!" to the stack and prints it.

## Blank, 64 bytes

[33][100][108][114][111][87][32][44][111][108]{:}[101][72]{p}{@}


Hint: Read the interpreter / compiler to ensure that you use all features. This esolangs page, for example, used to exclude the p instruction.

## EXCON, 137 bytes

<<<^<<<^!:^<<^<<<^<^!:<<^<^<<^<^!!:^<^<^<^<<^<^!:<<^<^<<^!:<<<<<^!:^<^<^<<^<<^!:^<^<^<^<<^<^!:<^<<<^<^<^!:<<^<^<<^<^!:<<^<<<^<^!:^<<<<<^!


Simple bit-hacking.

## 96, 44 bytes

72,101,108:,@,111,44,32,87,111,114,@,100,33"


Uses the accumulator to store the L.

## Jumper, 59 bytes

=72>=101>=108>=108>=111>=44>=32>=87>=111>=114>=108>=100>=33


# Milky Way 1.0.0, 16 bytes

"Hello, World!"!


or

"Hello, World!">


### Explanation

"Hello, World!"   # push "Hello, World!" to the stack
!  # output the TOS


or

"Hello, World!"   # push "Hello, World!" to the stack
>  # rotate the stack rightward.
if nothing is output manually,
the bottom stack item is output


## Dirst, 21 bytes

dss_Hello, World!.txt


Note: this must be run in a system where ! is allowed in filenames.

## Elixir, 22 bytes

IO.puts"Hello, World!"


## Pig, 27 bytes

/dev/stdoutPIGHello, World!


Requires a Unix-like OS to run. Pig is a simple language in which a program is a filename, followed by PIG, followed by anything else, which writes the string to the file specified by the filename. In this case, I use the tactic of writing the output to /dev/stdout, outputting the string. /dev/tty outputs the string, but it requires a console window to work, and doesn't pipe output correctly.

• Not a programming language. – SuperJedi224 Dec 12 '15 at 19:58

# C, 32 bytes

main(){printf("Hello, World!");}


Tested on C99 Strict, compiler will generate a warning that there is no return-type, and int is assumed.

What actually happens in most environments is that the return value from the last printf is left in the register used for return values.

Quote Reference

In our case the printf("Hello, World!") is the only statement in our program, which will set 13 in the registry for return values.

In most environments, EXIT_FAILURE is usually 1 as in gcc, which means that on most environments this will not write to STDERR.

• It seems we already have a shorter C solution. Your elaboration is nice though, so I guess it's your call whether you keep this answer or not. – Martin Ender Dec 15 '15 at 8:59
• @MartinBüttner is it okay to provide an answer that has a requirement on how to compile or a specific file name ? – Khaled.K Dec 15 '15 at 10:02
• Answers that only work with specific compilers are fine (for the purposes of code golf here, languages are actually defined by their implementations). Specific command-line options and file names are legitimate too but need to be added to the byte count. – Martin Ender Dec 15 '15 at 10:05

## Algol-M, 36 bytes

BEGIN
WRITE("Hello, World!");
END


CP/M nostalgia...

B>type hello.alg
BEGIN
WRITE("Hello, World!");
END

B>algolm hello
ALGOL-M COMPILER VERS 1.1
0 ERROR(S) DETECTED

B>runalg hello
ALGOL-M INTERPRETER-VERS 1.0

Hello, World!

B>_


A problem?

There is more output than just "Hello, World!" but that output is not caused by the program itself, it is caused by the interpreter.

• In this challenge, not even extra interpreter output is allowed. Is there a way to disable it? – LegionMammal978 Dec 25 '15 at 12:33
• @Martin Büttner: Hey chef... I've no problem deleting this solution if that not-by-my-program-output really is a probem... or use your moderator magic power and delete it... definitely my life does not depend on this solution... ;-) – user19214 Dec 25 '15 at 17:23

# Befalse, 41 bytes

I want to learn this language, but it's so confusing ):

0"!dlrow olleH"!/$?\ \. /  Demo (paste into the the box and click "Show", then click "Run".) ## SPL, 91 bytes File hello.spl: PROGRAM h;BYTE w='Hello, World!$';PROCEDURE BDOS(WORD f,s);EXTERNAL;BEGIN BDOS(9,@w) END h.


With some CRLFs (99 bytes):

PROGRAM h;
BYTE w='Hello, World!$'; PROCEDURE BDOS(WORD f,s);EXTERNAL; BEGIN BDOS(9,@w) END h.  (both without crlf after last line) CP/M nostalgia... E>type hello.spl PROGRAM h;BYTE w='Hello, World!$';PROCEDURE BDOS(WORD f,s);EXTERNAL;BEGIN BDOS(9,@w) END h.
E>do c hello
SuperSUB V1.1

E>; COMPILE AN SPL PROGRAM
E>SPL HELLO

SPL V-1.03.03.10 (17-Dec-06 13:41:11)
No errors. Code = 31. Free memory = 30081.

E>L80 HELLO,HELLO/N/E

Data    0103    01D6    <  211>

46887 Bytes Free
[0111   01D6        1]

E>ERA HELLO.REL
E>hello
Hello, World!
E> _

• Can the downvoter please explain why downvoting was needed? Can it be done shorter in SPL? – user19214 Apr 28 '18 at 8:15

## Genie, 28 bytes

File hello.gs:

init
print "Hello, World!"


(tab indented, needs final newline)

Compile & run:

$valac hello.gs$ ./hello
Hello, World!


## Pilot, 15 bytes

t:Hello, World!


(no trailing newline is ok for the Pilot implementation I used)

CP/M nostalgia...

A>type hello.plt
t:Hello, World!
A>do pilot/pr hello
SuperSUB V1.1

A>: SUBMIT PILOT/P WITH REAL TYPE SUPPORT
A>PILOT/P HELLO
PILOT/P version 2.5, 02/26/84
WRITING TO   HELLO.PAS
Translating: HELLO

A>ERA OLD.HDR
No file
A>REN OLD.HDR=PILOT/P.HDR
A>REN PILOT/P.HDR=PILOT/PR.HDR
A>PASCAL HELLO
InterSystems Pascal v - 4.0
HELLO        1---
VLENGTH     27-
MEMAVAIL    28--
SETLENGT    30-
LENGTH      31-
INDEX       33-
POS         34-
UCASE       35-
LCASE       36-
DELETE      37-
COPY        38-
INSERT      39--
REPLACE     40-
CONCAT      41-
STR         42-
IVALUE      43-
HALT        44-
ISALPHA     45-
ISUPPER     46-
ISLOWER     47-
ISDIGIT     48-
ISSPACE     49--
TOUPPER     50-
TOLOWER     51-
KEYIN       52-
KEYBOARD    53-
DWRITE      54-
CONSTAT     55-
CONCHAR     56-
GOTOXY      57-
VAL         58-
RANDOM      59--
RND         63-
RANDOMIZ    65-
INITIALI    69-----
WAIT       102---
MATCH      124-------
HELLO      185-
0 compilation error(s).

A>ERA HELLO.LST
A>REN PILOT/PR.HDR=PILOT/P.HDR
A>REN PILOT/P.HDR=OLD.HDR
A>ASMBL MAIN,HELLO/REL
Pascal/Z run-time support interface ASMBLE v-7d

0 errors.  312 symbols generated.  Space for 2819 more symbols.
4275 characters are stored in 44 macros.
1680 bytes of program code.

A>ERA HELLO.SRC
Generate a COM file
Lo = 0100   Hi = 1A32   Start = 0172   Save  26 blocks

A>ERA HELLO.REL
A>ERA HELLO.PAS
A>hello
Hello, World!

A>_


## COMAL, 20 bytes

1print"Hello, World!


CP/M nostalgia...

A>comal

COMAL Users Group, U.S.A. Limited

1print"Hello, World!
run
Hello, World!

End of program
bye

A>_


# WhoScript, 19 bytes

1"Hello, World!";pf


Not nearly as much fun as the full version:

# 48 65 6c 6c 6f 2c 20 57 6f 72 6c 64 21
@ push the ASCII values of the characters "Hello, World!" to the stack

psychic_paper flush
@ print all values on the stack as ASCII characters


# Freelang, 291 bytes

A lot of whitespace, but it's an assembly language for a virtual machine. I'm pretty sure this won't compile without the indents.

H{
." Hello world! " p
halt
: p ( s -- )
[@] 4 * swap incw swap
w:
go[<=0] :e
dec swap [@b]
go[==0] :s
writorb ::z
go :n
s:
drop
n:
inc swap
go :w
e:
drop2
;
z: halt
}H


# lang5, 17 bytes

lang5 is a combination of APL and Forth (Hello World doesn't show off any of the APL bits)

"Hello, World!" .


# SuperX++, 37 bytes

From the web site:

Superx++ is an object-oriented language that is entirely based on XML's syntactical structure. Superx++ conforms with the XML version 1.0 specification as published on the W3C web site. Programming in XML itself has great potential and Superx++ pushes the envelope!

This program comes from http://xplusplus.sourceforge.net/FAQ.htm#hellow

<xpp><xout>Hello, World!</xout></xpp>


# o:XML, 48 bytes

From the web site:

o:XML is a complete object oriented programming language, with features including polymorphism, function overloading, exception handling, threads and more. The syntax is fully compliant XML. With o:XML, object-oriented paradigms can be leveraged to the maximum, while data and code remains in a standard format. With o:XML there is no 'impedance mismatch' when developing XML web-applications, tools and systems. Furthermore o:XML integrates seamlessly with most popular Java platforms, including Java Servlets, Struts, Ant, BSF and Spring 2.0.

This program comes from http://www.xml.com/pub/a/2004/07/21/oxml.html

<?xml version="1.0"?>
<o:do>Hello, World!</o:do>


# REXX, 19 bytes

say "Hello, World!"


Rexx is widely used as a scripting and macro language, and is often used for processing data and text and generating reports. Rexx is the primary scripting language in some operating systems, e.g. OS/2, MVS, VM, AmigaOS, and is also used as an internal macro language in some other software, such as KEDIT, THE and the ZOC terminal emulator.

• Yeah, it's used on zOS – mbomb007 Feb 24 '16 at 19:36

# Mouse16, 16 bytes

"Hello, World!"!


Boring, I know.

If you want somewhat interesting, then there's this, which runs Python from inside Mouse, for 31 bytes:

"!!PY!!print('Hello, World!')"


The to-be interesting bits of Mouse aren't implemented yet, but we have control structs, so...

# Pike, 35 bytes

A fast OOP scripting language with familiar C-style syntax.

int main(){write("Hello, World!");}


The optional return 0; is left off, because it runs without it.

In the REPL, the main declaration can be left off.

Pythonish, but with C syntax. OO-enabled, and also inherits from PHP (the good parts), Perl and (duh) C/C++, but Pike isn't halfassed about OOP like C++ is.

This can be compiled into ANSI C or C++ with a #define (and the #include, for standards compilance) for 113 bytes:

#ifndef __PIKE__
#include<stdio.h>
#define write(x) printf(x)
#endif
int main(){write("Hello, World!");return 0;}


No warnings with gcc -Wall -pedantic! Only a few more defines are needed to make almost any Pike into ANSI C. :D

# Falcon, 16 bytes

I'm sad that the last update to this language was in 2010 :( it looks so cool! it's still indev!!

>"Hello, World!"


It gets its syntax from Python and PHP, most noticeably.

## A-Ray, 16 bytes

Any new language should be put here just for the sake of being put here...

p"Hello, World!"


# Pylons, 16

Toggles string mode with " and then pushes "Hello, World!" to the stack, then uses c to print the whole stack as a string.

"Hello, World!"c


For 14 bytes, thought possibly cheating, so it's not my main answer,

c


with Hello, World! as a command line arg.

I don't have an online interpreter yet, but if you download the repo and pass the command line args to main.py` and the program to stdin, it'll run.