Filter Keys lets your keyboard ignore accidental repeated key presses

Filter Keys is an accessibility feature built into Windows and Mac that stops your keyboard from registering the same key multiple times when you press it once. If you hold down a key by accident, or if your fingers shake slightly when you type, Filter Keys can prevent that single keypress from creating "aaaaaaa" or "ssssss" on your screen.

The feature works by adding a small delay between when you press a key and when the computer registers it, and then ignoring any repeated presses that happen too quickly afterward. You control how long that delay is and how fast the repeat has to be before it gets ignored. It is not the same as turning off key repeat entirely — you can still hold down a key to get multiple characters if you want them, but accidental bounces and tremors will not create extra letters.

Filter Keys is most useful for people with motor control differences, tremors, or arthritis, but anyone whose keyboard is worn out or whose hands shake when tired can turn it on temporarily.

Key Takeaways

  • Filter Keys prevents accidental repeated characters by ignoring key presses that happen too quickly after the first one.
  • You can adjust the delay time and the repeat rate, so the feature works with your typing speed rather than against it.
  • Filter Keys is built into Windows (under Ease of Access) and Mac (under Accessibility), so you do not need to install anything.
  • Turning on Filter Keys will not stop intentional key repeats — if you hold down a key on purpose, you will still get multiple characters.

How Filter Keys works on Windows

On Windows 10 and 11, Filter Keys lives in the Ease of Access settings. Open Settings, go to Accessibility, then Keyboard, and look for the toggle labeled "Filter keys". When you turn it on, Windows starts watching for bouncing keypresses and ignores the ones that come too fast.

Once Filter Keys is on, you will see a Settings button next to the toggle. Click it to open the detailed options. Here you can set the "Bounce Keys" delay — this is how long Windows waits after you press a key before it starts listening for repeats. The longer the delay, the more time you have before the repeat filter kicks in. Most people start with the middle setting and adjust from there.

You can also set the repeat rate, which controls how fast a key has to repeat before Windows ignores it. A slower repeat rate means Windows will ignore more repeats; a faster rate means only the very fastest bounces get filtered out. Test both settings by typing in Notepad to see what feels right for your hands.

How Filter Keys works on Mac

On Mac, Filter Keys is called Slow Keys and lives in System Preferences under Accessibility. Open System Preferences, click Accessibility, then Keyboard, and turn on the Slow Keys toggle.

When Slow Keys is on, Mac adds a delay between the moment you press a key and the moment it registers on screen. You control this delay with a slider — move it left for a shorter delay, right for a longer one. The longer the delay, the more time you have to lift your finger before the keypress counts, which reduces accidental repeats.

Mac also lets you turn on a sound or visual feedback when a key is accepted, so you know the computer registered your press. This is helpful if you are not sure whether a key went through or if you are still getting used to the delay.

When to turn Filter Keys on and off

Filter Keys is worth turning on if you notice repeated characters appearing when you only pressed a key once, or if you find yourself deleting extra letters constantly. It is also useful if you have arthritis, a tremor, or any condition that makes fine motor control difficult.

You might turn it off if you are a fast typist and the delay starts to feel like it is slowing you down, or if you play games that require rapid key presses. The good news is that turning it on and off takes five seconds, so you can experiment without any real cost. Many people turn it on only when they need it — for example, when they are tired or when their hands are cold.

If you find that Filter Keys helps but the settings do not feel quite right, spend a few minutes adjusting the delay and repeat rate. Small changes to these numbers can make a big difference in how the feature feels when you type.

Other keyboard accessibility features that work with Filter Keys

Filter Keys is one of several keyboard features designed to make typing easier. Sticky Keys lets you press Shift, Control, or Alt once and have it stay active for the next keypress, instead of holding it down. Toggle Keys plays a sound when you press Caps Lock or Num Lock, so you know whether they are on or off.

You can turn on any of these features at the same time — they do not interfere with each other. Some people use Filter Keys to reduce bouncing, Sticky Keys to avoid holding down modifier keys, and Toggle Keys to hear confirmation that Caps Lock is active. Start with whichever one solves your biggest typing problem, then add others if you need them.

Troubleshooting Filter Keys when it feels too slow

If you turn on Filter Keys and suddenly typing feels sluggish, the delay is probably set too long. Go back into the settings and move the delay slider to the left (on Mac) or choose a shorter bounce delay (on Windows). Start with the shortest setting and type a test sentence in Notepad. If you still get repeated characters, move the slider slightly to the right and try again.

Another common issue is that the repeat rate is set too aggressively, so even intentional key holds do not work. If you hold down a key and nothing happens, or if only one character appears when you expected several, adjust the repeat rate setting to allow faster repeats. The goal is to filter out accidental bounces while still letting you hold down a key on purpose.

If Filter Keys is making typing worse instead of better, turn it off and try a different feature instead. Some people find that Sticky Keys solves their problem better than Filter Keys, or that a combination of both works best. There is no single right answer — it depends on how your hands work.

Frequently Asked Questions

Will Filter Keys slow down my typing speed?

It depends on the delay setting. If the delay is too long, yes — but you control the delay, and most people find a setting that does not noticeably slow them down. Start with a short delay and increase it only if you are still getting repeated characters. Many fast typists use Filter Keys without any speed loss.

Can I turn Filter Keys on with a keyboard shortcut?

On Windows, you can hold the right Shift key for eight seconds to toggle Filter Keys on and off. On Mac, there is no built-in keyboard shortcut, but you can add one through System Preferences by going to Keyboard, then Shortcuts, and creating a custom shortcut for Slow Keys. This is useful if you want to turn the feature on and off without opening settings.

Does Filter Keys work in all programs?

Yes. Filter Keys is a system-wide feature, so it works in every program that accepts keyboard input — email, web browsers, word processors, games, and everything else. Once you turn it on, it stays on until you turn it off, regardless of which program you are using.

What is the difference between Filter Keys and Slow Keys?

They are the same feature with different names. Windows calls it Filter Keys; Mac calls it Slow Keys. Both add a delay before a keypress registers and ignore bouncing repeats. The settings and menus are different, but the purpose and result are identical.

Can I use Filter Keys if I have a wireless keyboard?

Yes. Filter Keys works with any keyboard — wired, wireless, built-in laptop keyboard, or external keyboard. The feature is built into the operating system, not the keyboard itself, so it does not matter what hardware you are using.