Open your
.schem files in 3D
Drop a WorldEdit schematic and inspect it in 3D right away: dimensions, block count, full palette. Nothing is sent to a server.
No account, no install. Your file is read inside your browser and never leaves your device.
What is a .schem file?
A .schem is a Sponge Schematic, the format WorldEdit and FastAsyncWorldEdit have written since Minecraft 1.13. It stores a palette of block states — with their properties, facing and variants — then a varint-packed index array referencing that palette.
It replaced the older .schematic at the Flattening: that format only knew numeric IDs (35:14 for red wool), which left it unable to describe anything added since. This viewer reads both, plus versions 2 and 3 of the Sponge format.
How to create a .schem file
Select the area
With //wand, left-click one corner and right-click the opposite one to outline the build.
Copy the selection
//copy records the region relative to where you stand — that point becomes the paste origin.
Save it
//schem save my_build writes the .schem into plugins/WorldEdit/schematics. Drop it above to check the result.
Frequently asked questions
Q.What is the difference between .schem and .schematic?
.schematic is the old MCEdit format, pre-1.13, built on numeric block IDs. .schem is the modern Sponge format, built on block names. This viewer opens both.
Q.Is my file sent anywhere?
No. The file is decoded locally by your browser. Nothing is uploaded, so there is nothing to delete afterwards.
Q.How do I paste a .schem on my server?
Put the file in plugins/WorldEdit/schematics, then //schem load name followed by //paste. Add -a to skip air blocks.
Q.Are versions 2 and 3 supported?
Yes. v3 nests its data under a Schematic compound and moves the palette into a Blocks node; the viewer detects the structure automatically.
Q.Can I open several files at once?
Yes — drop a .zip or .rar and every schematic inside is extracted, including from sub-folders, and listed under the viewer.