1.21.4 https://mcstacker.net/Current Version
1.21.2 / 1.21.3 https://mcstacker.net/1.21.3.php
1.21 / 1.21.1 https://mcstacker.net/1.21.php
1.20.5 / 1.20.6 https://mcstacker.net/1.20.5.php
1.20.3 / 1.20.4 https://mcstacker.net/1.20.3.php
1.20.2 https://mcstacker.net/1.20.2.php
1.20 https://mcstacker.net/1.20.php
1.19 https://mcstacker.net/1.19.php
1.18 https://mcstacker.net/1.18.php
1.17 https://mcstacker.net/1.17.php
1.16 https://mcstacker.net/1.16.php
1.15 https://mcstacker.net/1.15.php
1.14 https://mcstacker.net/1.14.php
1.13 https://mcstacker.net/1.13.php
1.12 https://mcstacker.net/1.12.php Main version for 1.12
1.12 https://legacy.mcstacker.net/ Legacy version for 1.12
1.11 https://legacy.mcstacker.net/mcstacker1.11.php Legacy version
1.8, 1.9 & 1.10 https://legacy.mcstacker.net/mcstacker1.10.php Legacy version
1.7 https://legacy.mcstacker.net/1.7/2014-08-31.php This version has a 1.8 mode also which can switch between numerical item ids or item names.

Old versions of MCStacker are not maintained anymore. I won't be bug fixing or adding features to them. I prioritize only the current version and snapshots.