BSPEntSpy
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BSPEntSpy 
Developer(s)
jakgor471
Initial release
Jun 1, 2024
Stable release
Dec 14, 2025
(1.673)
(1.673)
Written in
Operating system
Type
Map tool
Target engine(s)
Distribution
Freeware
Website
Download
Version
1.673
BSPEntSpy is an unofficial updated version of 
Entspy. It allows to view and edit entities in a compiled BSP map file.
The features of a program include:
- Importing and exporting entities
- Patching from VMF
- FGD support for SmartEdit like editing
- Mass editing for editing multiple entities at once (works as in Hammer Editor)
- Undo / Redo functionality for time-travelling and fixing mistakes
- Enhanced filtering and selection
- Renaming the map alongside with updating internal references and directories (for fixing broken cubemaps)
- Exporting / Importing embedded files facilitating removal of broken cubemaps or packing files into the map file
- Removing light information for rebuilding the lighting using VRAD
- Re-saving Static prop lump with different version to fix 'stale map version' error
Supported games
- Source games and mods, such as:
Half-Life 2 and Episodes
Counter-Strike: Source
Garry's Mod
Team Fortress 2
GoldSrc games and mods (entity lump editing only), such as:
Note:For 
Half-Life: Blue Shift, use bspfix to convert to standard BSP30.
Quake engine games and mods using standard BSP29 (entity lump editing only), such as:
Confirm:
Hexen II uses a slightly modified version of BSP29, and as such might not be supported.
Gallery
The BSPEntSpy v1.1 interface
Lightmap preview in BSPEntSpy v1.67.
External links
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