Free open source application emulates Windows mouse clicks EXTREMELY QUICKLY, at hardware speed limit, due to arrayed SendInput(). Supports command line and the clicking parameters auto-save. The only program utilizes fine tricks in SendInput() system call with arrays of 100-1000 mouse events, interleaved by precisely calibrated Sleep().

I have rewritten this program inspired by the currently obsolete project "Fast Mouse Clicker" by xytor.

This program solves the following end-user problems:
- How can I click faster?
- How can I use mouse from my keyboard in Windows?
- How do I make my mouse click automatically?
- What is butterfly clicking?

*NEW* Command line support: TheFastestMouseClicker.exe -c <clicks/s> -t <trigger key> -s <stop at> -m {p|t} -b {l|m|r}. See Features below.

*NEW* Auto-save all the clicking parameters.

*NEW* Reset to defaults button.

Formerly "The Windows Intel Fastest Mouse Clicker".


  • The world's best click rate up to 100 000 clicks per second, increased by 10 times comparing with the predecessor application "Fast Mouse Clicker". The latest version with fixed performance issue is 100 times faster!
  • The Left, Middle, and Right mouse buttons are supported, they can be triggered for clicking by a key on the keyboard in a press or toggle mode.
  • Arbitrary keyboard key can be selected to trigger the clicking process. Furthermore, an another mouse button can play a role of a trigger key.
  • The program works fine even if it is minimized and also it operates on an arbitrary desktop area. The program can stop to ckick automatically, if a certain number of clicks is given by end-user.
  • This is free, open source application without Ads forever.
  • The uninstaller bug has been fixed. The application uninstalls clearly.
  • Executes modern SendInput() system call instead of obsolete mouse_event() used in the predecessor "Fast Mouse Clicker".
  • Utilizes batch-array feature of SendInput() and manipulates with Sleep() to reach the ultimate possible performance of mouse clicks on Windows.
  • The application can be used on a bare system, it does not depend on .NET Framework or any other external library as "Speed AutoClicker", "Fast Clicker", etc. do.
  • Supported operating systems: Windows 7, Windows 8, Windows 8.1, Windows 10.
  • Built with heavily optimized Intel C/C++ compiler 15.0. Of course, both Intel and AMD processors are supported.
  • Not only a keyboard key can trigger a mouse click, but another mouse button can do that too.
  • The setup installer of version 1.9.x.x has been dramatically reduced in size from 4.7Mb to 1.6Mb. Download it 3x times faster!
  • *** NEW *** Command line has been supported: TheFastestMouseClicker.exe -c <clicks/s> -t <trigger key> -s <stop at> -m {p|t} -b {l|m|r}, where '-m {p|t}' is the 'trigger key mode' {'press'|'toggle'} and '-b {l|m|r}' is the 'mouse button to click' {'left'|'middle'|'right'}. One may specify any part of arguments; unspecified or unrecognized values will be treated as defaults (see them by running the app without command line, e.g. from Windows programs menu).
  • *** NEW *** This program is essentially used to create amazing photo-realistic art performed by millions of mouse clicks in applications such as Gimp or Photoshop, etc.
  • *** NEW *** Auto-save all the clicking parameters has been added! This feature does not interfere parameters from the command line.
  • *** NEW *** Reset to default parameters button added.
  • *** NEW *** Fractional values for clicks/s parameter are supported. For example, 0.5 clicks/s equals to 1 click every 2 seconds.
  • SHA256(Setup_TheFastestMouseClicker_1_9_7_0.exe)= 178d544cab7fb4b05809cab58eb770df417ca64ec8525b4d31e38ec65207f4ac.
  • SHA256(Setup_TheFastestMouseClicker_1_9_8_0.exe)= c37b3e55fcd58b0b727e3c249e34fd2b5804be650c8763355d63dfe5caba91b1.

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User Reviews

  • The only program that uses fine calibrated approach to make mouse clicks extremely fast. Also superb features like full command line support and saving the clicking arguments.

    2 users found this review helpful.
  • The fastest clicker ever with great developer that explains how it works so quickly.

    3 users found this review helpful.
  • The author of this app has polished all the details and features, that other mouse clickers lack. Attention to the details makes this clicker the best.

    2 users found this review helpful.
  • Coolest mouse app so far

    3 users found this review helpful.
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Additional Project Details


French, Italian, English, Portuguese, Indonesian, Chinese (Simplified), German, Spanish

Intended Audience

Education, Developers, End Users/Desktop, Quality Engineers, Testers

User Interface

Win32 (MS Windows)

Programming Language

C++, C

Database Environment