CS2 Demo Analysis Kit vs DemoLens

CS2 Demo Analysis Kit includes DAK Studio, a free desktop platform for analyzing Counter-Strike 2 demos locally. It links statistics to the source match, round and tick, with a 2D replay for inspection. The app runs on the user’s machine without an account, upload or server. Its modules cover replay, player profiles, duels and mechanics, utility and economy, tournaments, and coach preparation. The built-in exporter imports .dem files or cs2-demo-format v3 ZIPs and parses them on the computer. Windows and macOS downloads include a DMG, installer and portable ZIP options. The full Windows portable ZIP includes the Cologne Major 2026 event package and map data; the core ZIP contains runtime only. The runtime rejects v2 packages, which must be re-exported with cs2df. DAK Studio is AGPL-3.0-only, while ecosystem packages and the Python shell are MIT licensed. The analysis layer is also consumed by RivalHub and CS2 Insight Agent.

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.