The Licers Blog
Guides on protecting your software — validating keys, stopping piracy, floating licenses, offline activation, and more.
LicensingComparisonA practical guide to licensing your software on a budget: what features actually matter, common options, and how to add signed license validation for free.
LicensingComparisonComparing Cryptolens for software licensing? Here is an honest look at the category and a free, Python-friendly alternative with tamper-proof signed validation.
LicensingComparisonLooking for a Keygen alternative? Here is an honest comparison of developer-friendly software licensing options — including a free, signed-validation option that is simple to start with.
LicensingOfflineOffline activation lets software verify a license with no internet using a signed license file. Here is how air-gapped activation works and how to ship it.
LicensingFloatingA floating license caps how many copies run at the same time instead of how many are installed. Here is how concurrent seat licensing works and how to add it in minutes.
PythonLicensingDevice binding ties a license key to specific machines using a hardware ID, so one key cannot run everywhere. Here is how to do it reliably across desktop and mobile.
LicensingTrialsHow to build a free trial that users cannot cheat: server-enforced expiry, starting the clock on first use, converting trials to paid, and stopping trial abuse.
LicensingCryptographyFrom partial key verification to digital signatures — how license key algorithms actually work, why the classic approach is broken, and what to use instead.
LicensingActivationA clear explanation of software activation: what happens when a program checks a license, what a machine fingerprint is, how offline activation works, and why the confirmation must be signed.
PythonAnti-PiracyYou cannot make Python impossible to decompile, but you can make it slow, painful, and not worth the effort. Here are the techniques that actually help — and the ones that do not.
PythonLicensingThe options for licensing a Python application — offline files, online validation, and floating licenses — with the trade-offs of each and how to choose.
PythonLicense KeysA practical guide to locking your Python code to a license key: validate on startup, bind to the machine, verify the signature, and obfuscate so the check cannot be removed.
PythonLicense KeysLearn how to generate software license keys in Python — from a quick random key to a secure signed key that cannot be forged or guessed. With copy-paste code.
Anti-PiracyLicensingYou cannot make software 100 percent piracy-proof. But you can make cracking expensive enough that most people simply pay. Here is a realistic, developer-friendly playbook.
PythonLicensingA step-by-step guide to adding secure, tamper-proof license validation to a Python application — using signed responses that a fake license server cannot forge.