CS Demo Analyzer vs DemoLens

CS Demo Analyzer is a free command-line tool for analyzing and exporting Counter-Strike 2 and CS:GO demo files. It produces CSV, JSON, or CSDM output, and an optional flag adds entity positions such as player and grenade locations. Users can force a demo source, with supported options including FACEIT, ESEA, ESL, and Valve. Developers can use the Go API to analyze a demo or analyze and export it. The @akiver/cs-demo-analyzer NPM module wraps the Go CLI and supplies TypeScript types and constants. The project uses the demoinfocs-golang parser, created by Markus W. and maintained by him and AkiVer. It is distributed under the MIT License, which permits use, modification, and distribution subject to its conditions. The linked CS Demo Manager companion application lists statistics, grenade finding, heatmaps, VAC tracking, video generation, downloads, search, and exports; that app can export XLSX or JSON or provide SQL access to its database. CS Demo Analyzer is intended for developers extracting data from Counter-Strike demos and supports Linux, macOS, Windows, and API use.

DemoLens is a free browser viewer for Counter-Strike 2 match demos, presenting a 2D tactical replay rather than a 3D first-person view. It accepts .dem, .dem.gz, and .dem.zst files and parses them in the browser with WebAssembly, so demo files are not uploaded to DemoLens. Replay controls include a multi-level radar, grenade trajectories, player status, key presses, playback speed, and kill markers. Analysis tools provide grenade lineup pins, movement trails, heatmap-style pins, FOV cones, drawing mode, and kill-feed badges. Scoreboard and economy data, player metrics, percentile comparisons, and an integrity check against professional baselines are included. FACEIT demos add synchronised voice playback, per-player voice timelines with WAV export, and chat translation. The browser extension adds one-click demo opening and player scouting statistics in FACEIT rooms. Desktop Chrome, Edge, or Firefox is required; phones are unsupported. The project says it has no accounts, tracking, analytics cookies, ads, or personal-data collection.