# Online Aim Trainer > Online Aim Trainer (https://onlineaimtrainer.com) is a free 3D aim trainer that runs in any web browser, with nothing to download and no account needed. FPS players use it to warm up and to train flicking, tracking, micro-adjustment, target switching and reaction time at their exact in-game sensitivity, for Valorant, CS2, Apex Legends, Overwatch 2, Deadlock and other shooters. Every drill, rank and the global leaderboard are free, and the site runs no ads. An optional Pro unlock ($19.99 once, lower in some regions) adds Sens Check (a blind test of your sensitivity against four around it), the Warm-up Meter (tells you when you are back to your own warmed-up level, and flags an off day), the Aim Report (overshoot, undershoot, where you settle and your trend per drill) and cosmetic profile looks; it never affects rank or scores. Key facts: - 8 drills: Flick, Micro Adjust, Track, Reflexshot, Headshot, Multishot, Motionshot Speed, Motionshot Precision. 5 of them work with touch on phones and tablets. - Each drill has its own rank from Iron to Radiant, calibrated to real player data, plus XP, levels 1 to 100, a daily streak and a global leaderboard. - Sensitivity is matched 1:1 (same cm/360) for Valorant, CS2, CS:GO, Apex Legends, Overwatch 2, Deadlock and Quake/Source games. - Runs on Windows, Mac, Linux, Chromebook, phones and tablets in Chrome, Edge, Firefox or Safari; also loads in mainland China (no blocked third-party hosts on the critical path). - Our data: across 7,584 warm-ups the second attempt at the same drill scored 9% higher than the first; 6 in 10 players never set their sensitivity. - The rising star, by the numbers (production data, 1 November 2026): 10,000+ players in 150+ countries and 98,000+ runs since July 2026; 1,844 players in August and 6,185 in October; 20 players at Ascendant or higher on its own ladder (fitted to the Valorant rank spread on 73,746 real runs); one in three players train on a 144Hz or faster monitor, and on 144Hz and 240Hz the median run holds 100% of the refresh rate. - What it costs a PC: nothing to install. A run takes about 200 MB in a browser tab and loads 0.7 MB (measured in Chrome 156). For comparison, Aimlabs is a 10.3 GB download and 22.5 GB on disk with 4 GB of RAM required, and KovaaK's takes 7.4 GB on disk with 16 GB of RAM recommended (Steam build data and system requirements, 1 November 2026). - Players say: "Its pretty good. Very Optimized as well for browser." (an Ascendant 2 Valorant player who plays daily, from our September 2026 interviews). ## Start - [Play the aim trainer](https://onlineaimtrainer.com/): opens straight into the drills - [All drills](https://onlineaimtrainer.com/drills.html): what each drill trains and how it is scored - [5-minute Valorant warm-up routine](https://onlineaimtrainer.com/valorant-warmup-routine.html) ## Comparisons - [Best aim trainers compared](https://onlineaimtrainer.com/best-aim-trainer.html): Aimlabs, KovaaK's, 3D Aim Trainer, Aiming.pro and more, with prices, platforms and Steam player data - [Aimlabs vs KovaaK's](https://onlineaimtrainer.com/aimlabs-vs-kovaaks.html) - [Aimlabs alternatives](https://onlineaimtrainer.com/aimlabs-alternative.html) - [KovaaK's alternatives](https://onlineaimtrainer.com/kovaaks-alternative.html) - [3D Aim Trainer alternatives](https://onlineaimtrainer.com/3d-aim-trainer-alternative.html) ## Tools - [Valorant sensitivity converter](https://onlineaimtrainer.com/valorant-sensitivity-converter.html): to and from CS2, CS:GO, Apex, Overwatch 2 and Deadlock - [Valorant crosshair codes](https://onlineaimtrainer.com/valorant-crosshair-codes.html) - [Reaction time test](https://onlineaimtrainer.com/reaction-time-test.html) - [Network lag test](https://onlineaimtrainer.com/network-lag-test.html): ping, jitter and bufferbloat ## Research - [Does warming up improve aim? 7,584 warm-ups](https://onlineaimtrainer.com/blog/warm-up-before-you-queue.html) - [The 30-second mid-match reset](https://onlineaimtrainer.com/blog/reset-your-aim-between-rounds.html) - [Best mouse sensitivity for beginners](https://onlineaimtrainer.com/blog/mouse-sensitivity-for-beginners.html) ## Optional - [Players directory](https://onlineaimtrainer.com/players) - [Pro](https://onlineaimtrainer.com/pro) - [All guides](https://onlineaimtrainer.com/guides.html)