DemoLens
DemoLens is a free browser-based 2D viewer for Counter-Strike 2 match demos.
What DemoLens is
DemoLens is a free browser-based 2D viewer for Counter-Strike 2 match demos. It accepts .dem, .dem.gz, and .dem.zst files, which it parses in the browser using WebAssembly rather than uploading them to DemoLens. Replays include a multi-level radar, grenade trajectories, player status, key presses, playback speed controls, and kill markers. Analysis tools include grenade lineup pins, movement trails, heatmap-style pins, FOV cones, drawing mode, and kill-feed badges.
The viewer provides scoreboard and economy data, player performance metrics, percentile comparisons, and an integrity check against professional baselines. For FACEIT demos, it supports synchronized voice playback, per-player voice timelines with WAV export, and in-game chat translation. A browser extension adds a one-click demo button and player scouting statistics to FACEIT match rooms. DemoLens requires a desktop browser; its site names Chrome, Edge, and Firefox, and says phones are not supported. The replay is a 2D tactical view rather than a 3D first-person replay. DemoLens describes itself as an independently run, non-commercial community project and says it is not affiliated with FACEIT or Valve.
Good
- Parses demo files locally in the browser.
- Offers replay controls and a broad set of analysis tools.
- FACEIT demos support voice timelines and chat translation.
- Free browser-based viewer and extension.
Watch out
- Requires a desktop browser; phones are not supported.
- Replays are 2D rather than 3D first-person.
- Google Translate receives chat text and player names when used as a fallback.
Who it suits
DemoLens may suit Counter-Strike 2 players who want to review match demos and analyze player movement, utility, or match statistics. FACEIT users can also use its extension and additional demo features.
Verdict
DemoLens offers a free set of replay and analysis tools for Counter-Strike 2 demos, with extra voice and scouting features for FACEIT. It is a desktop-browser option, and its replay format is tactical 2D rather than first-person 3D.
Plans and prices
From DemoLens's own pricing page, checked 8 Oct 2001.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | CS2 demo viewer · FACEIT browser extension |
The facts
Each one read from DemoLens's own pages, with the date it was checked.
What it does
- Analysis features
- Analysis tools include grenade lineup pins, movement trails, heatmap-style pins, FOV cones, drawing mode, and kill-feed badges.checked 8 Oct 2001
- Demo limitation
- DemoLens provides a 2D tactical replay rather than a 3D first-person replay.checked 8 Oct 2001
- FACEIT extension
- The browser extension adds a one-click demo button and player scouting statistics to FACEIT match rooms.checked 8 Oct 2001
- Local processing
- Demo files are parsed in the browser using WebAssembly and are not uploaded to DemoLens.checked 8 Oct 2001
- Privacy
- The privacy policy says DemoLens has no accounts, tracking, analytics cookies, or ads, and does not collect personal data.checked 8 Oct 2001
- Project status
- DemoLens describes itself as an independently run, non-commercial community project and says it is not affiliated with FACEIT or Valve.checked 8 Oct 2001
- Purpose
- DemoLens is a browser based 2D viewer for Counter-Strike 2 match demos.checked 8 Oct 2001
- Replay features
- The replay includes a multi-level radar, grenade trajectories, player status, key presses, playback speed controls, and kill markers.checked 8 Oct 2001
- Stats
- The viewer provides scoreboard and economy data, player performance metrics, percentile comparisons, and an integrity check against professional baselines.checked 8 Oct 2001
- Support
- The site lists [email protected] as its contact address.checked 8 Oct 2001
- Supported files
- The viewer accepts .dem, .dem.gz, and .dem.zst files.checked 8 Oct 2001
- Translation privacy
- If built-in on-device translation is unavailable, using the translate button opens Google Translate and sends it the in-game chat text and player names.checked 8 Oct 2001
- Voice and chat
- For FACEIT demos, DemoLens supports synchronized voice playback, per-player voice timelines with WAV export, and in-game chat translation.checked 8 Oct 2001
Where it runs
- Browser requirements
- The viewer requires a desktop browser; the site names Chrome, Edge, and Firefox, and says phones are not supported.checked 8 Oct 2001
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