QDAT

Items

Liquids

Legend

General

Item size 100%

Player size 100%

HM size 100%

HM opacity 90%

Map zoom 100%

Transparent bg

Map opacity 100%

Solid color

Jumppad color

Lightmap

Item models

Items xray

Players xray

2D & ISO View
Drag	Pan map
Scroll	Zoom in / out
Double-click	Reset pan & zoom
3D View
Click	Capture mouse (enter free-look)
W A S D	Fly forward / left / back / right
Space	Fly up
Ctrl	Fly down
Mouse	Look around
Scroll	Adjust fly speed
Esc	Release mouse / stop following player
General
Drop file	Load demo from disk (drop anywhere)

QDAT

Quake Demo Analysis Toolkit

Created by

vidje / esdf

git.sr.ht/~vidje/qdat — source repository
discord.gg/WzrPw9DRXs — Discord

About

QDAT parses and visualises Quake Live and Quake III Arena demo files. It renders BSP map geometry in top-down, isometric, and full 3D WebGL views, and overlays player positions, flag events, and heat-maps for post-game analysis.

Built with

Go — HTTP server, BSP parsing, analytics pipeline
Vanilla JavaScript — all frontend logic, no frameworks
WebGL — 3D map rendering (no external 3D library)
HTML5 Canvas 2D — top-down & isometric views

Third-party tools & libraries

UberDemoTools (UDT) — demo parsing engine; extracts game states, obituaries, flag captures, match stats, and raw config strings from .dm_68 / .dm_73 / .dm_90 / .dm_91 demos
wolfcam-ql / QuakeJS — .dm_68 / .dm_91 demo format reference
Quake III Arena BSP format specification
Quake Live network protocol documentation

Browse

Merge Demos

Select demos to merge (click folder to select all in it):

Geometry Layers

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Monochrome

Layer sep 0px

3D View

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Camera

Mouse sens 35

Heatmaps

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