Do All Keycaps Fit All Switches? – A Comprehensive Guide

In the realm of mechanical keyboards, a common question arises: ‘Do All Keycaps Fit All Switches?’ Understanding the intricate relationship between keycaps and switches is pivotal.

This guide explores these components’ compatibility, essential for both newcomers and seasoned mechanical keyboard enthusiasts.

Keycap Definition & FunctionKeycaps are the primary touchpoint for typing, designed to fit onto keyboard switches. They come in various profiles (OEM, Cherry, SA, DSA) and materials (ABS, PBT).
Mechanical Switch OverviewSwitches under keycaps provide tactile and auditory feedback. Popular types include Cherry MX, Topre, and Alps, each with unique characteristics like actuation force and feedback.
Keycap Compatibility with SwitchesDetermined by stem design (cross-shaped for Cherry MX, unique for Topre/Alps). Compatibility must be checked before purchasing new keycaps.
Special Cases for KeycapsErgonomic, vintage, custom, and low-profile keyboards may require specific keycap sets due to unique layouts or switch types.
Factors Affecting CompatibilityStem design variations, keycap material and build quality, keyboard layout and size, and keycap profile and shape.
Popular Keyboard SizesRanges from 60% (compact, no arrow keys) to full-size (includes Numpad). Each size may require specific keycap sets.
Custom Keycap SetsPros: Personalization, improved typing experience. Cons: Compatibility issues, higher cost. Choose based on switch type, layout, material, aesthetics, and budget.
Keycap Installation & MaintenanceSteps include identifying keycap/switch type, using a keycap puller, and regular cleaning. Troubleshoot issues like loose or incompatible keycaps.
Keycap Choices for ActivitiesGaming: Durable, clear legends. Programming: Comfortable profiles. Typing: Tactile/audible feedback. Choice affects performance and user experience.
Advanced ConsiderationsRole of stabilizers for larger keys, impact of keycap weight on typing feel and switch responsiveness, and unique layouts requiring special keycaps.
Conclusion & FAQsUnderstanding keycap-switch compatibility is crucial. FAQs address common concerns about keycap and switch choices.

Understanding Keycaps and Switches

Definition and Function of Keycaps

Keycaps are more than just the letters and symbols you see on a keyboard; they are the primary touch point between the user and the keyboard.

When you press a key, it’s the keycap you interact with. These small caps are designed to fit onto the switches of a keyboard and are crucial for the overall typing experience.

Keycaps come in various profiles, each offering a distinct look and feel:

  • OEM Profile: The most common profile, found on many standard keyboards. It has a sculpted design for comfortable typing.
  • Cherry Profile: Slightly shorter than OEM, this profile is known for its ergonomics and is favored by many mechanical keyboard enthusiasts.
  • SA Profile: Known for its tall, spherical tops, the SA profile keycaps are often used for their retro aesthetic and satisfying typing sound.
  • DSA Profile: These are uniform, low-profile keycaps with a flat surface, making them ideal for users who prefer a consistent feel across all keys.

The material of the keycap also plays a significant role. ABS (Acrylonitrile Butadiene Styrene) and PBT (Polybutylene Terephthalate) are the most common materials.

ABS keycaps are more prone to wear and shine over time, while PBT keycaps are more durable and resistant to shine.


Overview of Mechanical Switches

Beneath every keycap lies a mechanical switch, the heart of a mechanical keyboard’s functionality. These switches are responsible for the tactile and auditory feedback when a key is pressed.

Unlike membrane keyboards, mechanical switches are individual mechanisms that register key presses.

Popular types of mechanical switches include:

  • Cherry MX: Perhaps the most renowned in the mechanical keyboard world, Cherry MX switches come in various colors, each denoting a different typing feel and sound. For example, Cherry MX Reds offer a smooth, linear feel, while Cherry MX Blues provide tactile feedback and a noticeable click.
  • Topre: These electrostatic capacitive non-contact switches are known for their unique typing experience, combining the features of mechanical and rubber dome switches. They offer a smooth, tactile response that many typists find satisfying.
  • Alps: Once a dominant switch type, Alps switches are less common now but are still revered by keyboard enthusiasts for their distinct tactile and auditory feedback.

Each switch type has its own characteristics, such as actuation force (the amount of pressure needed to register a keypress), travel distance (how far the key moves down), and feedback (tactile and auditory).

These factors significantly influence the typing experience and are a key consideration for anyone looking to customize their mechanical keyboard.

Keycap Compatibility with Switches

Stem Design and Compatibility

he stem is a critical component in the keycap-switch relationship. It’s the part of the keycap that attaches directly to the switch.

The design of the stem determines whether a keycap can be fitted onto a particular switch.

  • Cross-Shaped Stem: The most common stem design, found in Cherry MX switches and their clones, features a cross or “+” shape. This design has become a de facto standard in the industry, leading to a wide range of keycap sets compatible with Cherry MX stems.
  • Other Stem Designs: Other switches, like Topre or Alps, have different stem designs. Topre switches, for instance, use a unique stem that requires specific keycaps. Alps switches, known for their rectangular stem, also require specially designed keycaps.

The compatibility of a keycap with a switch is largely determined by this stem design. When purchasing new keycaps, it’s essential to ensure that the stem design matches your keyboard’s switches.

Special Cases

  • Ergonomic Keyboards: Ergonomic keyboards, designed for comfort and to reduce strain during typing, often use non-standard key layouts and switch types. This uniqueness can limit the availability of compatible keycap sets. For example, keyboards like the ErgoDox have a very distinct layout and require specific keycap sizes and profiles.
  • Vintage Keyboards: Keyboards from earlier computing eras often feature switches that are no longer in production, such as buckling spring switches found in IBM Model M keyboards. Finding replacement keycaps for these can be challenging, often requiring enthusiasts to seek out vintage parts or custom solutions.
  • Custom and Boutique Switches: The mechanical keyboard hobby has seen a rise in custom and boutique switch designs, like the Holy Panda or Zealios switches. While many of these switches use stems compatible with Cherry MX keycaps, some may have slight variations that affect keycap fit.
  • Low-Profile Switches: With the advent of low-profile mechanical switches, like Cherry MX Low Profile or Kailh Choc switches, there’s a growing need for compatible low-profile keycaps. These switches are shorter than traditional switches, requiring thinner keycaps.

In summary, while the majority of modern mechanical keyboards use Cherry MX-compatible stems, special cases like ergonomic, vintage, custom, and low-profile keyboards often require specific keycap sets.

It’s always recommended to thoroughly research your keyboard’s switch type and stem design before purchasing new keycaps to ensure compatibility.


Factors Affecting Keycap Compatibility

Stem Design Variations

The stem design is a primary factor in determining keycap compatibility. Different mechanical switches have varying stem designs, which directly impacts whether a keycap can be fitted onto them. Here are some common variations:

  • Cross-Shaped Stems: Predominantly found in Cherry MX switches and their clones, these stems are the most universal, allowing for broad keycap compatibility.
  • Other Designs: Brands like Topre, Alps, and some custom switches have unique stem designs, requiring specific keycaps. For instance, Topre’s conical stem is incompatible with Cherry MX keycaps.

Keycap Material and Build Quality

The material and build quality of keycaps play a significant role in their compatibility and overall user experience:

  • ABS (Acrylonitrile Butadiene Styrene): A common plastic used in keycaps, known for its smooth texture. However, ABS keycaps can develop a shiny patina over time due to wear.
  • PBT (Polybutylene Terephthalate): More durable and resistant to shine than ABS, PBT keycaps are preferred for their longevity and texture.
  • Thickness and Quality: The thickness of the keycap walls can affect durability and sound. Thicker keycaps generally offer a more solid feel and deeper sound when typing.

Keyboard Layout and Size Considerations

Different keyboard layouts and sizes can necessitate specific keycap sets:

  • Standard Layouts: Keyboards with a standard layout (like full-size or TKL) usually have no issues with keycap compatibility.
  • 65% Keyboards: Popular for their compact form factor, 65% keyboards like the Epomaker Theory or Keychron Q2 often require specific keycap sets due to their unique layout, which includes 67 to 68 keys, a function row, and sometimes a shortened spacebar or shift key.
  • Custom Layouts: Keyboards with custom layouts may have non-standard key sizes or placements, requiring specialized keycap sets.

Profile and Shape of Keycaps

The profile and shape of keycaps significantly influence typing ergonomics and aesthetics:

  • Flat Profiles (DSA, XDA): These profiles have uniform keycap heights, offering a consistent feel across the keyboard. They are often preferred for their modern look and ease of typing.
  • Sculpted Profiles (OEM, Cherry, SA): These profiles have varying heights for different rows, designed to match the natural curvature of fingers. They can enhance typing comfort but may take time to get used to.
  • High vs. Low Profile: High-profile keycaps, like SA, offer a more pronounced look and feel, while low-profile keycaps are sleeker and may be more suitable for portable or slim keyboards.

In conclusion, keycap compatibility is influenced by a variety of factors, including stem design, material, keyboard layout, and keycap profile.

Understanding these aspects is crucial for anyone looking to customize their mechanical keyboard, ensuring both functional compatibility and personal preference are met.

Popular Keyboard Sizes and Their Keycap Needs

65% Keyboards: A Case Study

65% keyboards represent a balance between functionality and compactness. Models like the Epomaker Theory, KBD67, and Keychron Q2 are examples of this layout.

They typically include 67 to 68 keys, which is a reduction from the standard 104 keys found on full-size keyboards.

This reduction is achieved by removing the Numpad and sometimes the function row, while still retaining dedicated arrow keys and a few essential function keys.

  • Keycap Sets for 65% Keyboards: Due to their unique layout, 65% keyboards often require specific keycap sets. These sets must accommodate non-standard key sizes, such as a shorter right shift key, smaller function keys, or additional keys like “Page Up” and “Page Down” near the arrow keys. The compact form factor of these keyboards makes them popular among users who value desk space but still want the functionality of arrow and function keys.

Other Keyboard Sizes

  • 60% Keyboards: This layout is even more compact than the 65% variant, typically omitting the dedicated function row, Numpad, and even the arrow keys. Keycap sets for 60% keyboards are usually straightforward, focusing on the alphanumeric keys, modifiers, and some function keys that are often layered onto other keys. These keyboards are favored for their portability and minimalist aesthetic.
  • 75% Keyboards: These are a step up from 60% keyboards in terms of functionality. They include a function row but maintain a compact size by placing keys closer together and often eliminating the gaps between key groups. Keycap sets for 75% keyboards need to cater to this dense layout, which sometimes includes additional keys like home, end, page up, and page down.
  • TKL (Tenkeyless) Keyboards: TKL keyboards are essentially full-size keyboards without the Numpad, offering a more compact footprint while retaining the function row, arrow keys, and navigation keys. Keycap sets for TKL keyboards are quite common and are compatible with most standard sets designed for full-size keyboards, minus the Numpad keys.
  • Full-size Keyboards: The most traditional layout, full-size keyboards include all key sections: the alphanumeric keys, function row, Numpad, arrow keys, and navigation keys. Keycap sets for full-size keyboards are widely available and offer the most straightforward compatibility, catering to all standard key sizes and placements.

Each keyboard size caters to different user preferences and needs, from the ultra-compact 60% to the fully-featured full-size.

When choosing keycap sets, it’s crucial to consider the specific layout and key sizes of your keyboard to ensure a perfect fit and functionality.


Customization and Keycap Sets

Custom Keycap Sets

Custom keycap sets are an essential aspect of personalizing mechanical keyboards. They not only enhance the aesthetic appeal of the keyboard but can also improve the typing experience.

Here’s an expanded look at the pros and cons of custom keycap sets and some tips on choosing the right set.

Pros of Custom Keycap Sets:

  • Personalization: Custom keycaps allow users to personalize their keyboards to reflect their style and preferences. This can include different colors, themes, materials, and even custom legends (the characters or symbols on the keycaps).
  • Improved Typing Experience: Different materials and textures can change the feel of typing. For example, PBT keycaps are more durable and have a different texture compared to standard ABS keycaps. This can lead to a more satisfying typing experience, both in terms of feel and sound.
  • Enhanced Aesthetics: Custom keycaps can significantly enhance the visual appeal of a keyboard. Unique designs, colors, and themes can make a standard keyboard look extraordinary.

Cons of Custom Keycap Sets:

  • Compatibility Issues: Not all keycap sets are compatible with every keyboard. Factors like the size of the keycaps, the layout of the keyboard (such as ANSI vs ISO), and the stem design of the switches (like Cherry MX, Topre, or Alps) can affect compatibility.
  • Potentially Higher Cost: Custom keycap sets can be significantly more expensive than standard sets. Limited edition or high-quality sets, especially those made from PBT or with unique designs, can be a considerable investment.
  • Availability: Some custom keycap sets are produced in limited runs or are made by small-scale manufacturers, making them hard to find or subject to long waiting times.

Choosing the Right Keycap Set

  • Consider Switch Type: Ensure that the keycaps are compatible with the type of switches on your keyboard. Most keycaps are designed for Cherry MX stems or similar, but if you have a different switch type, you’ll need to find a compatible set.
  • Keyboard Layout: Keyboards come in various layouts (full-size, tenkeyless, 60%, etc.), and keycap sets are designed to fit these specific layouts. Make sure the set you choose matches your keyboard’s layout.
  • Material and Quality: Keycaps are typically made from ABS or PBT plastic. PBT is generally more durable and resistant to shine over time, but ABS can offer a smoother typing experience.
  • Aesthetics and Personal Preference: Choose a design that appeals to you. This could be a specific color scheme, theme, or even custom artwork. Remember, the keycaps are a reflection of your personal style.
  • Budget: Set a budget before you start looking. Keycap sets can range from relatively inexpensive to very high-end, so it’s important to know how much you’re willing to spend.
  • Read Reviews: Before making a purchase, read reviews and feedback from other users. This can provide valuable insights into the quality and compatibility of the keycap set.

In conclusion, while custom keycap sets offer a great way to personalize and enhance your keyboard, it’s important to consider factors like compatibility, cost, and personal preference before making a decision.

With the right set, you can significantly improve both the aesthetics and the functionality of your keyboard.

Installation and Maintenance of Keycaps

Replacing keycaps is a common way to customize a mechanical keyboard. It’s a relatively simple process, but it requires careful handling to avoid damage to both the keycaps and the switches.

Here’s an expanded guide on how to replace keycaps and maintain them, along with troubleshooting common issues.

Step-by-Step Guide to Replacing Keycaps

  • dentify Keycap and Switch Type: Before starting, identify the type of keycaps and switches your keyboard has. This ensures compatibility of the new keycaps with your keyboard’s switches. Common switch types include Cherry MX, Topre, and Alps.
  • Prepare Your Workspace: Have a clean, flat surface to work on. Lay out your tools, such as a keycap puller, and have a container ready to store the removed keycaps.
  • Gently Remove Old Keycaps: Using a keycap puller, carefully attach it to the sides of the keycap and gently pull upwards. Do this evenly to avoid bending the switch stems. For larger keys like the spacebar, stabilizers are involved, so extra care is needed.
  • Clean the Keyboard: Once the keycaps are removed, it’s a good opportunity to clean your keyboard. Use a soft brush or compressed air to remove dust and debris from the switches and board.
  • Align New Keycaps: Take your new keycaps and align them with the switch stems. Pay attention to the orientation, especially for keys like enter, shift, and spacebar which have specific shapes.
  • Press Firmly: Once aligned, press the keycap down firmly until it snaps into place. You should feel it seat securely on the switch stem.

Maintenance Tips

  • Regular Cleaning: Regularly clean your keycaps to prevent dust and grime buildup. You can use a damp cloth with mild soap for surface cleaning. For a deeper clean, remove the keycaps and wash them in warm soapy water, then let them dry completely before reattaching.
  • Gentle Handling: When removing or attaching keycaps, always be gentle to avoid damaging the switch stems or the keycaps themselves.
  • Avoid Harsh Chemicals: When cleaning, avoid using harsh chemicals or abrasive materials that can damage the keycap’s surface or lettering.

Troubleshooting Common Issues

  • Loose Keycaps: If a keycap feels loose, ensure it’s properly aligned and pressed down firmly. If it continues to be loose, the keycap or switch stem may be damaged.
  • Incompatible Sizes: If a keycap doesn’t fit, double-check if it’s designed for your keyboard’s layout and switch type. Keycaps designed for different switch types or layouts won’t fit properly.
  • Sticky Keys: If a key feels sticky or unresponsive after changing keycaps, check for proper installation. Ensure that the keycap is not pressing against neighboring keys or that the stabilizer (for larger keys) is correctly installed.
  • Uneven Key Heights: If the new keycaps seem uneven, check to see if they are all properly seated. Some keycaps, especially on non-standard keyboards, might require specific placement.

Gaming, Programming, and Typing: Keycap Choices

Choosing the right keycaps for your keyboard can significantly impact your experience, whether you’re gaming, programming, or typing. Different keycap types cater to the specific needs of these activities.

Here’s an expanded view on the best keycap choices for each, their impact on performance, and insights from user experiences.

Best Keycap Types

For Gaming:

  • Durable Keycaps: Gamers need keycaps that can withstand intense and frequent use. Materials like PBT (Polybutylene Terephthalate) are preferred for their durability and resistance to wear and shine.
  • Clear Legends: Keycaps with clear, durable legends are crucial for gaming, especially in low-light conditions. Backlit keycaps or those with high-contrast legends can be beneficial.
  • Low-Profile Keycaps: Some gamers prefer low-profile keycaps for quicker keystrokes and faster reaction times.

For Programming:

  • Comfortable Profiles: Programmers spend long hours typing, so keycap profiles that promote comfort are essential. Profiles like SA or DSA, which have a spherical top, can provide a more comfortable typing experience.
  • Ergonomic Layouts: Keycaps that support ergonomic layouts can reduce strain during extended typing sessions.
  • Custom Legends: Programmers might prefer keycaps with custom legends for frequently used symbols or functions.
  • For Typing:
  • Tactile and Audible Feedback: Typists often prefer keycaps that enhance tactile or audible feedback, like those used with mechanical switches. This can improve typing rhythm and accuracy.
  • High-Profile Keycaps: Traditional typists might prefer high-profile keycaps, like SA or OEM profiles, which offer a more substantial feel.

Impact on Performance

  • Material and Profile: The material and profile of keycaps can significantly affect typing speed and accuracy. For instance, smoother keycaps might lead to more slippage, while textured keycaps can provide better grip.
  • Ergonomics: Properly chosen keycaps can reduce finger fatigue and strain, especially important for those who type for extended periods.
  • Feedback: The tactile and audible feedback from certain keycap materials and designs can enhance the typing experience, leading to improved speed and fewer errors.

User Experiences

  • Gaming Testimonials: Many gamers report that after switching to durable, backlit keycaps, they experience less wear over time and enjoy enhanced visibility during late-night gaming sessions.
  • Programming Feedback: Programmers often share that keycaps with comfortable profiles significantly reduce finger fatigue and make long coding sessions more bearable. Custom legends can also speed up their workflow.
  • Typing Experiences: Typists frequently note that the right keycap choice, especially those providing tactile feedback, has improved their typing speed and accuracy. The satisfaction from the typing feel and sound also enhances the overall experience.

In conclusion, the choice of keycaps can greatly influence the experience and performance in gaming, programming, and typing.

It’s not just about aesthetics; the right keycaps can lead to better comfort, efficiency, and enjoyment in these activities. Personal preference plays a significant role, and trying out different types can help in finding the perfect fit for your needs.

Advanced Considerations

When delving deeper into the world of mechanical keyboards, several advanced considerations come into play.

These factors can significantly influence the typing experience and overall satisfaction with a keyboard setup. Let’s expand on the role of stabilizers, the impact of keycap weight, and considerations for unique layouts.

Role of Stabilizers

  • Purpose: Stabilizers are used to keep larger keys, such as the spacebar, enter, shift, and backspace keys, stable and even when pressed. Without stabilizers, these larger keys might wobble or fail to register consistent keystrokes.
  • Types of Stabilizers: There are several types, including Cherry-style, Costar-style, and optical stabilizers. Each type has its own characteristics and compatibility requirements with different keyboards and keycaps.
  • Impact on Typing Experience: Good stabilizers can greatly enhance the typing experience by providing a smooth, consistent feel across all keys. Poorly made or improperly installed stabilizers can lead to rattling or uneven key action.
  • Customization: Enthusiasts often modify or ‘tune’ their stabilizers (e.g., by lubricating or clipping them) to achieve a more desirable sound and feel.

Impact of Keycap Weight

  • Typing Feel: Heavier keycaps can change the typing dynamics. They may provide a more solid and deliberate feel, which some typists prefer.
  • Switch Responsiveness: The weight of the keycaps can affect how a switch behaves. Lighter keycaps can make a switch feel lighter or more responsive, while heavier keycaps might require more force to actuate and can dampen the sound.
  • Material Considerations: Different materials have different weights. For example, PBT keycaps are generally heavier than ABS keycaps, which can influence the choice based on preferred typing feel.

Unique Layouts

  • Custom Layouts: Keyboards with non-standard layouts, such as ergonomic keyboards, split keyboards, or those with unique key sizes and placements, require specially designed keycaps.
  • Availability: Finding keycaps for these unique layouts can be more challenging, as most commercial keycap sets cater to standard layouts. This often leads to seeking out custom keycap makers or specialized group buys.
  • Compatibility: When choosing keycaps for unique layouts, it’s crucial to pay attention to the size and shape of each key, as well as the stem type, to ensure proper fit and functionality.

In summary, advanced considerations like the role of stabilizers, the impact of keycap weight, and the requirements of unique layouts play a significant role in the customization and functionality of mechanical keyboards.

Understanding these aspects can help enthusiasts and professionals alike in creating a keyboard setup that not only looks great but also provides an optimal typing experience tailored to their specific needs and preferences.


This guide underscores the importance of understanding keycap and switch compatibility. Experimentation and personalization are key in the mechanical keyboard journey.


Addressing common queries like “Can I use any keycap on my mechanical switch?” or “What are the best keycap materials for durability?”

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