Do I really have to explain what is this Minecraft Tool is all about? INVedit, as it named, it is a inventory editor tool both for SinglePlayer and MultiPlayer. For MultiPlayer, you have to be the owner or server host.
These are the basic things that you can do with INVedit 1.2.5
- Download blocks from the files (items.txt or .pngs)
- Search and filter items
- Show damages as bar
- Show items in stacks
- Tabbed-navigation for editing multiple inventory
- Transfer items between inventory
- Save and load inventory
- Automatically check for new update
Thanks Copyboy, the developer of INVedit. You make our life much more easier 
ArtRichEll
More items, thanks