Key takeaways
- Automatic profile switching: Synapse can apply different settings for games, productivity apps, and creative software when supported.
- More customization: You can create complex remaps, macros, lighting patterns, sensitivity stages, and audio adjustments.
- Convenient updates: The software can help manage firmware and device updates from one interface.
- Easy troubleshooting: Synapse gives you a central place to confirm whether the device is detected and whether settings were applied.
- Useful for multi-device setups: If you own a Razer keyboard, mouse, headset, and mouse pad, one app can coordinate settings across them.
- Profiles can be portable on some devices: Onboard memory lets compatible hardware retain certain settings after Synapse is closed.
What's inside
If you own a Razer mouse, keyboard, headset, or other peripheral, you may wonder whether Razer Synapse must stay open every time you use your PC. The answer is less complicated than the software interface suggests, but it depends on which features you use and whether your device can save settings internally.
The Short Answer
No—Razer Synapse does not need to run in the background for basic use, provided your device has onboard memory or you are happy with its default settings. You need Synapse running when you want to apply software-based profiles, remap controls dynamically, manage advanced lighting, use macros, or access features that are not stored directly on the device.
As an Amazon Associate we earn from qualifying purchases at no extra cost to you. Product prices and availability are accurate as of the date shown and are subject to change.
In practical terms, casual users can usually close Synapse after configuring their hardware. Competitive players, streamers, and anyone who switches between detailed profiles may want it available at startup.
What You Actually Get
Razer Synapse is the control software for compatible Razer hardware. Depending on the product, it can manage button assignments, sensitivity settings, polling rate, lighting effects, macros, audio controls, power options, and game-specific profiles.
The important distinction is between device-stored settings and software-dependent settings. Some Razer mice and keyboards include onboard memory, allowing selected profiles to remain available when Synapse is closed or the device is connected to another computer. The number of saved profiles and the settings they retain vary by model.
Other features are processed by Synapse while Windows is running. A profile that automatically changes when a game launches, for example, may require Synapse and its background services. The same is true for certain lighting integrations, virtual audio controls, macros, and cloud-related functions.
Synapse may also install supporting processes that launch with Windows. These can help the app detect devices, apply profiles, and communicate with connected services. Closing the main Synapse window does not always stop every related process, so check the system tray or Task Manager if your goal is to reduce background activity completely.
For 2026, the best approach is still model-specific: check your device’s onboard-memory options rather than assuming every Razer product behaves the same way.
Pros
- Automatic profile switching: Synapse can apply different settings for games, productivity apps, and creative software when supported.
- More customization: You can create complex remaps, macros, lighting patterns, sensitivity stages, and audio adjustments.
- Convenient updates: The software can help manage firmware and device updates from one interface.
- Easy troubleshooting: Synapse gives you a central place to confirm whether the device is detected and whether settings were applied.
- Useful for multi-device setups: If you own a Razer keyboard, mouse, headset, and mouse pad, one app can coordinate settings across them.
- Profiles can be portable on some devices: Onboard memory lets compatible hardware retain certain settings after Synapse is closed.
Cons
- Background resource use: Synapse and its services consume memory and a small amount of processor time, even when you are not actively changing settings.
- Startup clutter: The app may launch with Windows and add several processes to your startup routine.
- Feature limitations after closing: Dynamic profiles, advanced effects, macros, and software-controlled features may stop working.
- Settings can be confusing: A setting shown in Synapse is not necessarily stored on the device. Closing the app may reveal that only the default configuration is hardware-based.
- Updates can change behavior: A software update may reorganize menus, add services, or require a restart before a device works as expected.
- Unnecessary for simple setups: If you only need standard mouse movement, keyboard input, or basic headset audio, running Synapse all day provides little benefit.
Who Should Buy It
Synapse is worth keeping installed—and possibly running in the background—if you bought Razer hardware for its customizable features rather than merely its appearance.
It makes the most sense for gamers who use different sensitivity settings, key assignments, or macros in multiple titles. It is also useful for streamers who need custom shortcuts, lighting control, or coordinated device profiles. People who use Razer peripherals across work and gaming may appreciate automatic profile switching instead of changing settings manually.
Keep Synapse active if your device lacks sufficient onboard memory or if your preferred configuration does not save to that memory. This is especially important when you depend on software features every time you use the computer. A quick test is simple: configure the device, fully exit Synapse, restart the computer, and see whether the settings remain. Test the specific features you care about, not just the basic buttons or keys.
Who Should Skip It
You can skip running Synapse if you use a Razer mouse or keyboard with default controls and do not need lighting effects, macros, profile switching, or advanced audio features.
It is also reasonable to disable Synapse from startup if you are trying to simplify Windows, reduce background processes, or eliminate software conflicts. You can launch it only when you need to change settings. This is often the best compromise for users who want occasional customization without leaving the program active all day.
Do not uninstall Synapse immediately if you are unsure whether your settings are stored in hardware. First, save or note your configuration, close the program, and test the device. If everything works, you can leave the app disabled at startup. If settings disappear, reinstall or re-enable it and look for an onboard-memory profile option.
Cheaper Alternatives
The cheapest alternative is not another utility; it is using the operating system and the device’s built-in memory whenever possible. These options will not reproduce every Synapse feature, but they can be enough for a straightforward setup.
| Option | Cost | Trade-off |
|---|---|---|
| Use default device settings | $0 | No background software, but no custom profiles, macros, or advanced lighting. |
| Save settings to onboard memory | $0, if supported | Settings travel with the device, but available profiles and features depend on the model. |
| Open Synapse only when needed | $0 | Reduces background activity, but you must launch the app manually for changes. |
| Windows mouse and keyboard settings | $0 | Handles basic sensitivity and input options, not Razer-specific lighting or macros. |
| Open-source remapping utility | $0-$20 | May offer simple remapping, but compatibility, support, and security vary. |
Be cautious with third-party remapping tools. A utility that controls one Razer device may not support another, and some games restrict macros or injected input. If you use a remapping program, download it from a reputable source and review its startup permissions.
FAQ
Will my Razer mouse work if I close Synapse?
Yes. Basic cursor movement, clicking, scrolling, and standard buttons should continue working. Custom functions may revert to defaults unless they were saved to onboard memory. DPI stages, polling rate, lighting, and button assignments can vary by model after Synapse closes.
Does Synapse slow down my computer?
It can use background memory and processor resources, but the effect is usually modest on a modern computer. The bigger concern is unnecessary startup activity or software conflicts. If performance matters, compare your system with Synapse enabled and disabled rather than relying on a general claim.
How do I stop Synapse from running at startup?
Open Synapse and look for its startup or launch-with-Windows setting. You can also use Windows Settings, then open Apps and Startup, to disable the relevant Razer entry. Some supporting services may still run, so check Task Manager if you want to stop every related process. You may need administrator access to change certain service settings.
Should I uninstall Synapse?
Usually, no. Disable startup first and keep the software installed in case you need firmware updates, troubleshooting, or profile changes. Uninstall it only after confirming that your device works properly without it and that you will not miss software-dependent features. For most owners, “installed but not always running” is the most practical solution.
