CS2 2D demo viewer
Drop in a demo and watch every round back in 2D in your browser. Smokes take the shape they had in the game, and the review rail jumps straight to the moments that decided the round. The round below is a real pro round you can play right now.
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Everything the round had in it
Upload .dem files, or .bz2, .zst, .zip and .rar archives with demos inside, several at once. Subtick parses the demo, then deletes the file. The rounds, the stats and the replay stay in your library.
- Players, view cones, the kill feed, the bomb and its fuse.
- Smokes drawn from CS2's own smoke volume data, and molotov fires as they spread.
- Players on a lower floor are faded, so stacked spots stay readable.
- Playback from 0.25× to 8×, with freeze time and quiet stretches skipped if you want.
A review rail that goes to the moments that matter
Subtick reads the demo and lists the moments worth stopping on: opening kills, trades, flash assists, wallbangs and clutches. It also lists the mistakes, like deaths nobody traded, team flashes, utility that was never thrown and buys out of sync with the team. Click one and the replay jumps to that tick.
The numbers next to the replay
- Scoreboard, weapons and economy, round by round from pistol to full buy.
- Duels and clutches.
- Heatmaps of kills, deaths, damage, opening kills and grenades, filtered by side, buy, result, headshots, wallbangs and more.
Notes, comparisons and back to the server
Pin a note or a drawing to a tick for the team. Stack rounds on one radar to compare your last scrim with a pro round on the same map. Any round, pro rounds included, can be played back as bots on your own CS2 server, so you can walk through it in the game.
Pro rounds for free
Every parsed pro match on Subtick plays in the same viewer, free and without an account.
Questions
Which demo files can I upload?
.dem files, and .bz2, .zst, .zip or .rar archives with demos inside. You can upload several at once, up to 2 GB each.
Do I need to install anything?
No. The viewer runs in your browser, and you sign in with Steam.
What happens to my demo file?
We parse the demo, then delete the file. The rounds, the stats and the 2D replay stay in your library.
Can I watch pro matches?
Yes. Pro matches open straight in the 2D viewer, free and without an account.
Is there a 3D view?
No. Rounds replay on the radar in 2D. To see a round in the game, play it back as bots on your own server.