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Razer
razer.com › synapse-4
Razer Synapse 4: Advanced Device Control and Lighting Software | Razer United States
Razer Synapse 4 offers improved speed, smarter features, and a reimagined user interface for a seamless gaming adventure. Download now!
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Razer Support
mysupport.razer.com › app › answers › detail › a_id › 1834 › ~ › how-to-install-or-upgrade-razer-synapse
How to install or upgrade Razer Synapse
December 11, 2025 - Razer ID, software download, license ... view the video below for instructions or review a copy of the video transcript. ... Go to Razer Synapse 4 download page then click “Download Now”....
Discussions

NEVER EVER upgrade to Synapse 4
I bought a Viper V3 Pro and installed Synapse 4. After I could not use the on-board memory for my mouse, no way to save settings at all for it. Contacted Razer and had a rep tell me “it doesn’t have on-board memory.” Uninstalled 4 and reinstalled Synapse 3, and now magically my mouse has on-board memory again. Weird how that works. More on reddit.com
🌐 r/razer
272
289
July 27, 2025
Just got back to PC gaming, download synapse 4 its so much better! *freezes on login*
So when I finally connected it all to turn it all off and then to delete it - it literally went through and cleared all my profiles on both my black widow and my razer 8k and now i dont even remember what my dpi settings were anymore. I actually hate this company so much. More on reddit.com
🌐 r/razer
5
6
January 8, 2025
What's going on with Synapse 4?
lol, for me it's the other way around. S3 worked like a piece of shit on my system and S4 still works like a piece of shit but better More on reddit.com
🌐 r/razer
41
16
October 25, 2024
[deleted by user]
I switch back from 4 to 3 since 4.is such a resource hog More on reddit.com
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36
12
December 22, 2024
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SourceForge
sourceforge.net › projects › razer-synapse-4
Razer Synapse 4 download | SourceForge.net
Razer Synapse 4
Download Razer Synapse 4 for free. Customize and control all your Razer devices . Customize and control all your Razer devices from one powerful platform. Whether you’re remapping buttons, creating macros, or fine-tuning performance settings, Synapse provides every tool you need to personalize ... Customize and control all your Razer devices from one powerful platform. Whether you’re remapping buttons, creating macros, or fine-tuning performance settings, Synapse provides every tool you need to personalize your gear to your playstyle.
Rating: 5 ​
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Razer
razer.com › pc › software
Razer Software | Synapse, Razer Chroma RGB, Razer Cortex and More | Razer United States
Immersive range of software platforms allowing you to game lag-free, stream with customized Chroma effects, and more. Download the software today!
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TechSpot
techspot.com › downloads › 5419-razer-synapse.html
Razer Synapse Download Free - 4.0.868 | TechSpot
December 1, 2025 - Download Razer Synapse - Every peripheral. Every macro. Every preference, profile and Razer add-on. All ready to go, all the time, from anywhere.
Rating: 3.3 ​ - ​ 189 votes
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Uptodown
razer-synapse.en.uptodown.com › windows › games › utilities › razer synapse › download
Download Razer Synapse 4.0.86 for Windows | Uptodown.com
October 29, 2025 - Razer Synapse / Download · 4.0.86 · Razer Inc. 5 · 2 reviews · 221.3 k downloads · Advertisement · Remove ads and more with Turbo · Advertisement · Remove ads and more with Turbo · Download 14.23 MB free Older versions · Click on "Download" to get the file.
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Reddit
reddit.com › r/razer › never ever upgrade to synapse 4
r/razer on Reddit: NEVER EVER upgrade to Synapse 4
July 27, 2025 -

Yesterday, I casually opened Synapse3 and was fooled by the red triangle and pressed the "Update to Synapse4" button. That was the beginning of all the tragedies.

My Razer Tarutarus V2 lost 3 layers and over 30 macro assignments. I can't remember which macros were assigned to which keys and I have to reassign them one by one by hand. This has devastated my CAD, illustration and video editing productivity. Razer is kind enough to call this a "seamless experience."

After a few hours of fuming, I discovered that I could downgrade to Synapse 3, but then the macro module itself stopped working. It was working fine before I pressed the "Update to Synapse 4" button, so it's definitely related to the update to Synapse 4.

There's an old saying that goes "If it ain't broken, don't fix it." I am painfully aware of how right this was. If you are not suffering with Synapse 3, do NOT upgrade to Synapse 4, no matter what threatening message you are being shown.

Synapse3 is set to stop working in January 2026, and when that date comes around I'll replace my device rather than opt for the update. After all, why would you need to worry about persistent software, cloud syncing, and updates that break at the whim of any corporation just to be able to press a button and play a macro?

Find elsewhere
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Reddit
reddit.com › r/razer › just got back to pc gaming, download synapse 4 its so much better! *freezes on login*
r/razer on Reddit: Just got back to PC gaming, download synapse 4 its so much better! *freezes on login*
January 8, 2025 -

Oh how I don't miss messing with a company that can't even get fucking social logins to work but has the most egregious privacy guidelines capturing every keystroke for "enhancement purposes".

Like literally social login just keeps having me login to no avail. Finally figure out my password since no social, then bam loads forever and ever and ever and cant log in. Actually rubbish considering I just want to turn RGB on all my razer shit off from literally just waking me up from that bullshit annoying ass pulse lighting effect. 🙃

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Reddit
reddit.com › r/razer › what's going on with synapse 4?
r/razer on Reddit: What's going on with Synapse 4?
October 25, 2024 -

I know people whinge about Synapse 3 but its been the most stable RGB and device control platform I've ever used (I've used most of them). Synapse 4, on the other hand, is an absolute buggy mess. Devices won't sync to their docks after waking from sleep -- and my Tartarus Pro refuses to work (save for the d-pad because reasons).

I'm using a Tartarus Pro, a Deathstalker V2 Pro TKL, a Firefly V2, a Basilisk V3 Pro and a Mouse Dock Pro -- so it's all current generation hardware. Nothing I own requires Synapse 4 but I'd prefer to use the features that're only available in Synapse 4.

Does it get better with a windows re-install? Or should I just give up on Synapse 4 until Razer fixes it?

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YouTube
youtube.com › watch
How to install or upgrade Razer Synapse - YouTube
Razer Synapse 4 is your new primary hardware configuration tool for your Razer devices with faster system performance, optimized memory usage, and more.This ...
Published   March 21, 2025
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Reddit
reddit.com › r/razer › [deleted by user]
Should I switch to synapse 4? : r/razer
December 22, 2024 - The automatic profile switching does not work if you update from 3 to 4. You have to first uninstall 3, clean all Razer folders and registry entries, then install 4 in order for it to work. Even when it works, Synapse 4 is much slower and riddled with issues, and 80% of the time profiles just don't switch back after changing / closing program.
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Razer
razer.com › ap-en › synapse-4-mac
Razer Synapse for Mac | Razer Asia-Pacific
Go to the Razer Synapse for Mac download page then click “Download Now”.
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YouTube
youtube.com › watch
Razer Synapse 4 - What's New? - YouTube
Subscribe to Simplech -- http://bit.ly/SimplechYTEmail: [email protected] provided by Chillhop MusicSweeps, luv pug - Chromaticahttps://chll....
Published   July 5, 2025