节拍器NEW
可调 BPM 与重拍提示音
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AllFreeTool is a free online metronome that keeps a steady beat for practice, rehearsal or recording. You set the tempo between 20 and 240 beats per minute and choose a time signature from two to eight beats per bar, then start it and the click runs by itself. A tap-tempo button works out the speed if you are not sure of it. The sound is synthesised in your browser, so nothing is uploaded.
It suits learning a piece at a manageable tempo, working on your timing, or recording a take without a drummer. The accent on the first beat of each bar makes it much easier to hear where you are in the measure, and the animated pendulum gives you a visual cue when you are practising away from the screen.
Why use 节拍器 on AllFreeTool?
Steady Click
A precise beat from 20 to 240 BPM, generated with the Web Audio oscillator.
Time Signature
Choose between two and eight beats per bar, with the first beat accented.
Tap Tempo
Tap the button in time and the tool works out the tempo you are tapping.
Sound and Volume
Choose a wood block or an electronic tone and set the output level.
How to use 节拍器
Set the Tempo
Enter the beats per minute and pick the number of beats per bar.
Start the Click
Press start and adjust the volume and the tone to suit the room.
Keep Time
Follow the accent and the swinging pendulum, or use tap tempo to find the speed.
Common questions
How does the tap tempo button work?＋
You tap the button in time with the music, and the tool measures the interval between your taps to work out a tempo. It needs at least two taps to produce a reading, and it works best if you keep tapping for several beats so the average settles down.
What does the accent on the first beat do?＋
The first beat of each bar is played with a different sound so you can hear exactly where the measure begins. That is what stops you drifting, because you always have an audible reference point rather than a shapeless stream of identical clicks.
How precise is the timing?＋
The beat is scheduled with the Web Audio clock rather than by counting timeouts, which keeps the tempo accurate and free from the jitter you get with a plain JavaScript interval. At slower tempos this is obvious, and it stays steady at fast ones too.
Is anything downloaded or uploaded?＋
Nothing. The clicks are synthesised from oscillators inside your browser, so there is no audio file to download and no network request to make. The tool opens instantly and keeps working with no internet connection.