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Timers & games / Reaction time test4 tools

Best reaction time tests

Measure how fast you react. Facts come from each tool's own pages, and every score says where it comes from. How we rank

Tools
4
Researched
2
Free option
1
Only listed
2

Disclosure: agathox makes some of the tools listed here. They are labelled and scored by the same method as every other tool.

Made by agathox · free, no sign-up, runs in your browser

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We build this tool, so it is labelled. It is scored with the same tests as the rest, and this box never changes the ranking below.

Reaction time test on agathox

Ranked by signals we can measure or quote: website health, the facts each tool's own pages state, and community discussion. Nothing here has been hands-on tested yet, so this is not a quality test. How the signals rank works

Quick answer

  • No signup needed: agathox timers & games
  • Files stay on your device: agathox timers & games

Based on what each tool's own pages say. A tool is left out when its pages say it varies or do not say. Details are listed under each tool.

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  • 1

    Aim Lab

    Free optionSignup unclearFile handling unclearHealth 3.7
    Open Aim Lab
    Details and sources
    Free tier
    Aimlabs offers a free version that allows users to play and train. The page says: “Join over 40 million players using Aimlabs to improve their FPS skills. Train with AI-powered personalized tasks, track your progress through real-time analytics, compete in multiplayer, and use game-specific tools to play at your best.. . . Play for free.”
    Paid plan
    Not stated.
    Signup
    Not stated.
    Watermark
    Not stated.
    Where files go
    Not stated.

    From the tool's own pages, checked 2026-11-04. Sources: Home. Prices and limits change; check the tool before you rely on them.

    Read automatically by a program, not by a person. Each fact quotes the sentence it came from, and a fact is shown only if that sentence is on the page. Where a page did not say, it reads “Not stated.”

    Full page for Aim Lab

  • -

    agathox timers & gamesMade by agathox

    UnclearNo signupFiles stay on your device—
    Open agathox timers & games
    Details and sources

    No facts have been read from this tool's pages yet.

    Full page for agathox timers & games

Answers come from each tool's own pages (“Unclear” means they do not say). Tick “Compare” on two to four tools to read them side by side.

Also listed (2, not yet tested)

Each of these answered when we visited its site. We have not tested them or recorded facts, so they are in alphabetical order, not ranked.

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