Welcome to Wikifunctions

Wikifunctions is a free library of functions that anyone can edit.

Welcome!

Wikifunctions is a Wikimedia project for everyone to collaboratively create and maintain a library of code functions to support the Wikimedia projects and beyond, in the world's natural and programming languages.

A "function" is a sequence of programming instructions that makes a calculation based on data you provide. Functions can answer questions, such as how many days have passed between two dates, or the distance between two cities.

Get started

Wikifunctions in 7 minutes

Functions to try out

reverse string (Z10012): Inverts the order of the characters in a String (see Z10548 for one with Unicode grapheme support)
is palindrome (Z10096): test if a string is the same when read forward and backward (see Z10553 for one with Unicode grapheme support)
substring exists (Z10070): Check if a substring exists within another string
To Uppercase (Z10018): Convert a string to uppercase letters
To Lowercase (Z10047): Convert a string to lowercase letters
join strings (Z10000): combine two strings, one after the other
Trim String (Z10079): Remove starting and ending whitespaces
is empty string (Z10008): true if the input string is empty
string equality (Z866): True if the first string and the second string are the same
Boolean equality (Z844): returns true only if both inputs are equal
more functions…

Learn and contribute

Learn about Wikifunctions

Contribute to other areas

Get involved as a translator

Get help

Questions? Ask at the Project chat or our Telegram/IRC channel!
Report a technical problem
- Status page lists major known issues and problems

News

Upcoming meetings

The next Volunteers' Corner will be at 2023-11-13, 18:30 UTC on Google Meet at meet.google.com/xuy-njxh-rkw.

Recent updates about Wikifunctions

2023-11-16: What types next?
2023-11-07: Wikifunctions, the library of functions that anyone can use and edit
2023-11-03: Python in WebAssembly; Improvements on Object Selector; Next Volunteer's Corner
2023-10-25: Running on WebAssembly
2023-10-04: Arguments made easier
2023-09-27: Serializers and deserializers for types
2023-09-20: Renderers and parsers for types
2023-09-08: Let’s start building morphological paradigms!
2023-08-31: Wikimania digest, CoSMo language, GFpedia demo, CCKS keynote
2023-08-14: Wikifunctions at Wikimania

More news

Wikifunctions is part of the non-profit, multilingual, free-content Wikimedia family.

Wikipedia
Encyclopedia
Wikidata
Knowledge base
Commons
Media repository
Wiktionary
Dictionary and thesaurus
Wikibooks
Textbooks and manuals
Wikinews
Free-content news
Wikiquote
Collection of quotations
Wikisource
Free-content library
Wikiversity
Learning resources
Wikivoyage
Travel guides
Wikispecies
Directory of species
Incubator
New language versions
Meta-Wiki
Project coordination
MediaWiki
MediaWiki development