Update

Removed the BigInteger.js requirement, browsers are far enought along that it should be fine. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt#browser_compatibility

steamid-converter

Simple conversion between Steam's ID formats, and also an example of the validation of inputs that require the various Steam ID formats (not actually handled by this library, but I figured hey, while I'm doing things with Regex...").

Installation

If you just want to cut to the chase and use it in your software, simply download converter-min.js and link it in your html files where you need it:

<script src="js/converter-min.js"></script>

Usage

An example of using every part of steamid-converter can be found in the file ui.js. Here's a brief overview:

SteamIDConverter.toSteamID64("STEAM_0:1:50279161");
// => "76561198060824051"

SteamIDConverter.toSteamID("76561198060824051");
// => "STEAM_0:1:50279161"

SteamIDConverter.toSteamID3("STEAM_0:1:50279161");
// => "[U:1:100558323]"

All three methods can take any of the other two forms of ID. I.e. toSteamID() can take a steamid64 or a steamid3.

There are also equivalent functions that check if the given string is a steamID, steamID64, or steamID3:

SteamIDConverter.isSteamID("STEAM_0:1:50279161");
// => true

SteamIDConverter.isSteamID64("bacon");
// => false

SteamIDConverter.isSteamID64("76561198060824051");
// => true

SteamIDConverter.isSteamID3("[U:1:100558323]");
// => true

Also included is a helper function to generate profile links based on the user's Steam ID:

SteamIDConverter.profileURL("[U:1:100558323]");
// => "http://steamcommunity.com/profiles/76561198060824051"

Just like the other conversion functions, profileURL() can take any form of Steam ID.