Best licensing platforms for Electron apps

Electron lets you write one codebase and ship a native binary to macOS, Windows, and Linux from it. That convenience is exactly what makes licensing an Electron app harder than licensing a single-platform one: the license layer has to behave identically across three operating systems with three different filesystem conventions, three different code-signing stories, and three different ideas about where a secure keystore lives.

Most licensing SDKs were not built with that in mind — they target one native platform and treat the rest as an afterthought, or they skip local verification entirely and require a live server call every time. Neither works well for a desktop app that has to run the same way everywhere it ships, including on a machine that is offline.

Electron’s own architecture points at the fix. Every Electron app has a Node.js main process with full filesystem access and one or more renderer processes that draw the Chromium UI. A licensing layer built for Electron puts activation and verification in the main process, where Node behaves the same on all three platforms, and exposes only the result to the renderer. This guide ranks the platforms that fit that shape well in 2026, and what each is actually best at.

The best licensing platforms for Electron apps

1. Keylight — best done-for-you SDK for the Node main process

The JavaScript SDK (@keylight-dev/js) is a single package that runs in any JavaScript runtime with fetch, including Node 18+, which is what Electron’s main process is. It handles key activation, offline Ed25519 lease verification, entitlement checks, and a built-in trial/free-tier flow, and a Stripe payment mints the license with no webhook code to write. Best when you want the SDK-plus-backend done rather than assembled, and you’re happy putting it in the main process and bridging state to the renderer over IPC. See the vs Keygen and vs LicenseSeat breakdowns.

2. Keygen — best for teams already using electron-builder

Keygen publishes a dedicated integration for Electron that goes past licensing alone: it ties into electron-builder so the same platform can also handle signed auto-updates and distribution, not just activation. The API is language-agnostic and the community edition is self-hostable if you want to own the stack. Best when you want licensing and your update pipeline on the same rails. Full comparison.

3. LicenseSeat — best cross-engine backend that treats Electron as first-class

LicenseSeat’s JavaScript/TypeScript SDK lists Electron explicitly among its supported runtimes, alongside Unity, Unreal, JUCE, Rust, and C#, with an open-source Ed25519 offline core and no processor lock-in — bring your own Stripe, Paddle, Gumroad, or PayPal. Best when the same backend also needs to license a game, a plugin, or a non-Electron desktop app. Full comparison.

4. Keyforge — best simple REST option for indie Electron apps

Keyforge publishes a guide specifically for adding license keys to an Electron app, backed by a public REST API that needs no API key plus a JavaScript SDK for offline token verification. Stripe, Polar, and Lemon Squeezy all map payments to keys. Best when you want the smallest possible surface — call the API from the main process, verify the signed token locally. Full comparison.

5. Keymint — best for indie Node/TypeScript backends spanning several stacks

Keymint ships an official Node.js/TypeScript SDK alongside Python, Go, and C#, with node-locking and offline, air-gapped validation on an indie-friendly free tier. Best when Electron is one of several targets — a CLI tool, a Go service, a C# app — and you want one licensing backend across all of them. Full comparison.

6. Cryptlex — best for floating or hardware-bound licensing

Cryptlex’s LexActivator ships a Node.js wrapper (@cryptlex/lexactivator) with node-locked, floating, and hardware-bound models across the same three platforms Electron targets. It’s a native library with precompiled binaries per target platform and architecture rather than a pure-JS package, which is real packaging work to get right in an Electron build — developers have hit binary-not-found errors bundling it with tools like Electron Forge. Best when floating seats or hardware-locked licenses are a hard requirement and you’re willing to do that packaging. Full comparison.

7. LicenseSpring — best for cross-platform enterprise Electron deployments

LicenseSpring’s official @licensespring/node-sdk covers perpetual, subscription, trial, node-locked, floating, consumption-based, and air-gapped licensing from one API, with a free tier to start. Best when your Electron app is part of an enterprise licensing program with procurement, multiple SKUs, or metered usage attached. Full comparison.

8. Cryptolens / Devolens — best language-agnostic engine at production scale

Recently rebranded from Cryptolens to Devolens, it ships a Node.js SDK alongside .NET, C++, Python, Java, and Go, with RSA-signed offline activation and both node-locked and floating models proven at real production scale. Best when your tooling already spans several languages and Electron is only one piece of it. Full comparison.

Main process or renderer

The single decision that shapes an Electron licensing integration is which process runs the SDK, and the answer is the same regardless of which platform above you pick: the main process.

Two reasons. The main process has Node’s filesystem access, so the license or lease can persist across restarts — the renderer does not, at least not with contextIsolation and nodeIntegration: false set, which they should be. And the renderer is a web page: a user can open DevTools and read whatever lives in it. Keeping your tenant configuration, SDK key, and the verified lease in the main process means the renderer only ever sees the specific yes/no answers you choose to hand it — “is this feature unlocked,” not the entitlement payload itself.

So the shape is consistent across every platform in this list: instantiate the SDK once in the main process, verify there, and expose a narrow surface — activate, read state, check an entitlement — to the renderer over ipcMain.handle and a contextBridge preload. The renderer never imports the SDK; it asks and renders the answer. It’s also the reason the cross-platform problem mostly disappears: Node runs the same on macOS, Windows, and Linux, so a check written once in the main process doesn’t need three platform-specific branches to work everywhere Electron does.

That local-first design also has to account for the network honestly. A licensing check that only works online has no good failure mode on a desktop app: fail closed and a paying customer on a plane or behind a corporate firewall gets locked out of software they own; fail open and the check is trivially bypassed by blocking the network. Offline-verified signed leases sidestep the choice — the signature check is local and instant, and periodic online revalidation catches revocations in the background without ever gating the app’s startup on a network call.

How to choose

• Want the SDK, offline leases, and Stripe already wired for your Electron main process → Keylight.
• Already using electron-builder and want licensing and auto-updates on one rail → Keygen.
• The same backend also licenses a game, a plugin, or another engine → LicenseSeat.
• Want the smallest possible integration surface → Keyforge.
• Electron is one of several targets — Python, Go, C# too → Keymint.
• Need floating seats or hardware-locked licenses and can handle native binaries → Cryptlex.
• Running an enterprise or procurement-driven licensing program → LicenseSpring.
• Tooling already spans several languages, need production scale → Cryptolens / Devolens.

Where Keylight fits

Keylight’s JavaScript SDK is a single package for any runtime with fetch — the Electron main process, a browser, Deno, Bun, or an edge worker — so the same integration pattern that gates a desktop app also gates a web dashboard if you ship one. Activation and offline Ed25519 lease verification happen locally once you’ve loaded the cached lease; a Stripe payment mints the license with no webhook code. Bridge activate, state, and hasEntitlement to the renderer over IPC, and the platform differences that make Electron licensing annoying mostly go away. The same integration feeds the dashboard, too: active devices by day and month, activations and validations, devices gone quiet over the last 30 days, and a breakdown by country — so you can see how much of the app is actually in use instead of guessing from support tickets. From @keylight-dev/js 0.1.6 the SDK reports the host operating system, so an Electron main process shows up as macos, windows, or linux and the platform breakdown splits your installs the same way the Swift and Rust SDKs do. Older releases reported the runtime (node) instead, so devices still on them stay grouped under that label until they update.

Plans start at $19/month, with a free tier. Connect your payment provider, drop the SDK into the main process, ship.