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Entropy

Free#48 of 105 in Keyboard and Mouse Customization Software

Entropy: A free, cross-platform layout tool with advanced keyboard configuration and testing. Ranked #48 of 105 in Keyboard and Mouse Customization Software by our editors (5.3/10); pricing: Free plan; best for open-source keyboard layout enthusiasts.

5.3/10Editor score

Visit Ergohaven

Entropy5.3 Visit Ergohaven

At a glance

Editor score
5.3 / 10
Pricing
Free plan
Best for
Open-source keyboard layout enthusiasts
Free plan
Yes
Paid from
Free
Supported operating systems
Cross-platform
Facts checked
22 Sep 2026

Where it wins
- Layer, keycode, macro, combo, and tap-dance editing
- RGB, pointing-device, mouse-key, and firmware settings
- Cross-platform typing, testing, text expansion, and layout tools
Where it doesn't
- Controls depend on the connected device’s firmware
- Works with compatible Vial-QMK or Vial-RMK interfaces
- More keyboard-layout focused than a full mouse suite

Our verdict on Entropy

Entropy is a desktop application from Ergohaven for configuring programmable keyboards and related input devices with Vial-QMK or Vial-RMK interfaces. It is aimed at solo users and small teams working with compatible keyboards, macropads, trackballs, touchpads, encoders, and modular devices. The application supports Linux, Windows, and macOS, with compatible devices connecting over USB or Bluetooth. Its focus is keyboard layouts and input-device configuration rather than broad mouse customization.

Entropy is distributed as free, open-source GPL-3.0 software. Its configuration scope includes layout and layer editing, key assignment, keycode selection, visual macro, combo, and tap-dance configuration, plus RGB and layer LED controls. Users can import and export device layouts and images or PDFs. The software also includes a Matrix Tester, Layout Indicator, local text expansion, and a Typing Trainer with local result history. Live synchronization covers time, volume, media, and operating-system layout settings.

The main qualification is hardware and firmware compatibility. Available controls depend on the connected device’s firmware, so the full feature set is not universal across every keyboard or input device. Entropy is also desktop software, with no mobile deployment listed. It suits users who want detailed, open-source keyboard layout work, macros, lighting controls, testing, and typing tools across three operating systems. Users seeking a broader, mouse-first customization suite may prefer a different category fit.

Your product? Our editors can test Entropy in depth and publish a review, labelled as paid · from $149/mo →

Entropy pricing

Plans Free planFree Free to use — no paid tier required for the core job.

See plans on entropy.tools

Entropy fact sheet

Free plan	Yes
Paid from	Free
Supported operating systems	Cross-platform
Macro support	Yes
Per-app profiles	Not verified
Onboard device memory	Yes
Polling rate control	Not verified
Sensitivity controls	Yes
Profile slots	Not verified
Deployment	Desktop
Platforms	Windows, macOS, Linux
Support	Email, Community, Docs
Built for	Solo, Small business (editorial estimate)
Integrations	4 integrations: time, volume, media, operating-system layout
Pricing	Free plan
Website	entropy.tools
Facts checked	22 Sep 2026

Entropy integrations

Entropy lists 4 integrations on its own site.

time
volume
media
operating-system layout

Alternatives to Entropy

See all Entropy alternatives →

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Featured on iTechGuides

Entropy is listed in our Keyboard and Mouse Customization Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update