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View a BSP file online, free

Open and read .BSP files online. View source, logs and text with syntax highlighting, search and line numbers, free.

Drop your .BSP file here

Opens your .BSP file right here.

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Up to 50 MB · 160+ text and code extensions
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What you get for a .BSP file

We don't have a dedicated viewer for this format, so we identify and inspect it instead — honestly, only what can be read from the file.

01

Drop your .BSP file

Choose it or drag it in. It's read right here in your browser.

02

We identify it

We read the magic bytes to tell what the file really is, its MIME type, and whether the name matches the contents.

03

See the details

Any metadata we can extract (dimensions, EXIF/GPS, document author and dates), a hex view, plus readable text and strings found inside.

What is a .BSP file?

Plain text that programs, servers and people write every day.

A .BSP file is a Quake Engine Game Map File developed by id Software. These 3D game files contain map data and layouts used for rendering environments. They can be opened and edited using programs such as Quake 2, GtkRadiant, QuArK, Irrlicht, and ZeroRadiant.

Programs that open .BSP files

Windows
Irrlicht, BSPEdit, GtkRadiant / NetRadiant, Hammer Editor (CS2 / Source 2), QuArK (Quake Army Knife), TrenchBroom
macOS
TrenchBroom
Linux
NetRadiant / ZeroRadiant, TrenchBroom
.BSP format details
Full nameBinary Space Partitioned Map File
Developerid Software (original Quake BSP); Valve Corporation (GoldSrc/Source variants)
First released1996 (Quake 1.0, id Software)
CategoryText & Code
MIME typeapplication/octet-stream

Related viewers

Every viewer is free to use.

Frequently asked questions

Is my .BSP file uploaded anywhere?

No. The file is read and highlighted for you.

Why do some characters look wrong (é, ł)?

That usually means the file was saved in one encoding and opened in another. We detect UTF-8, UTF-16 and the Windows-1250/1252 code pages automatically and show which one was used.

Can it handle huge log files?

Yes, up to 50 MB. Only the lines on screen are drawn, so scrolling stays smooth. Syntax colours are switched off for files over 1.5 MB to keep things fast.

How do the log level filters work?

We find levels like ERROR, WARN, INFO and DEBUG on each line. Lines without a level, such as stack traces, stay with the entry above them, so filtering to errors keeps the full trace.

Can I edit the file?

This is a viewer. To change code, download it or copy it into your editor. Converting encodings and line endings is planned.

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