Searching and Extracting
This tool can search files within all of the game's BIF, MOD and RIM files and the override folder and extract them. JEFindRes allows for simple regular expressions such as "j04_*.dlg" or "*.nss". It also includes Txb2Tga and can convert TXBs upon extraction. (See this post at lucasforums.com for more info)
ERF/MOD/RIM Editor for Jade Empire (with correct file type associations)
Converts Bioware's custom image format TXB into the editable TGA.
Standard V2.0 2DA files can be edited and saved with a simple text editor such as notepad. However, not all 2DA files use V2.0, and earlier versions require special tools to be opened and edited. The "players.2da" file in Jade Empire is one such example.
Convert2da allows you to convert V1.0 2DA files to V2.0 so that they can be opened in a simpler fashion.
This add-in allows users of Microsoft Excel to read and write .2DA files using the afore-mentioned program.
Although it was designed for the game bearing its title, the Knights of the Old Republic Tool works just as well for Jade Empire as far as 2DA editing is concerned. Just ignore the error messages at the beginning and use the "Open 2DA Editor" function from the "Tools" drop-down menu in the main window.
Editor for Bioware's GFF (Generic File Format). Nearly half of the game's files are stored in this format.
Editor for the dialog.tlk
Editor for DLG Files
A basic savegame editor for Jade Empire.
With these two command line tools you can uncompress your savegames and recompress them when you are done editing them. The resulting files are all SAVs and can be edited with K-GFF. Note that some virus scanners incorrectly flag these tools as malicious. That's a false positive!
Compiler for the game's script files. Takes NSS files as input and outputs NCS files.
Additionally there is also a group of PHP classes for reading and manipulating 2das and the dialog.tlk:
(a class for GFFs will soon be added)