Waxseal
Licensing without a licence server — offline software licensing kit for indie developers.
Licensing without a licence server. Issue cryptographically signed offline Ed25519 licences, manage products and tiers, and automate webhook fulfillment with zero server dependencies.
$0 / month
Server Cost
<1ms
Validation Time
Ed25519
Crypto Algorithm
Live
Status
No input — handed over off-channel
No input — handed over off-channel
Context breakdown during technical communication
Modern SaaS licensing SDKs force desktop developers to rent always-on auth servers, pay monthly SaaS fees, or lock their software behind internet pings that fail on air-gapped workstations or offline creators.
Transparent hardware overlay with zero-latency input
A self-contained developer studio running locally on your workstation. Generate 256-bit Ed25519 keypairs, stamp tamper-proof base64url .vpl license certificates, sign monotonic revocation feeds, and verify incoming webhooks from Stripe, Lemon Squeezy, Razorpay, Gumroad, and Paddle.
Subsystem Architecture
4 core layersPure RFC 8032 Ed25519 digital signatures and SHA-512 with sub-millisecond client validation
Compact .vpl license files carrying customer identity, semantic version entitlements, and feature flags
Append-only signed revocations.json manifest feed with cryptographic sequence counters
HMAC-SHA256 signature verification and webhook simulation for top merchant payment gateways
Tell us what you want to build.
One call, a deterministic technical scope, and a 100% fixed price. From architecture to launch, we engineer software that drives real business results.