Dev tools · alternatives · 2026
24 alternatives to Add license key verification to your apps
Open Source License Key Generation and Verification Tool written in Go - furkansenharputlu/f-license
This GitHub repository provides developers with tools to implement license key verification in their applications. It enables software creators to protect their work by validating license keys at runtime. The solution… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Add license key verification to your apps launched in 2020; newer entries below may have overtaken it.
- 1

Open Source License Key Generation and Verification Tool written in Go - furkansenharputlu/f-license
2020 · github.com · its alternatives →
- 2

Keygen is a powerful software licensing API for desktop apps, on-premise software and other software products written in Go, Rust, JS, C/C++, C#, Swift, Java, Kotlin and more.
2017 · keygen.sh · its alternatives →
- 3
Keygen▲252A dead-simple software licensing API built for developers
2016 · keygen.sh · its alternatives →
- 4
Keydock▲133Painless license key generation for products you develop.
2018 · keydock.app · its alternatives →
- 5

This free, open-source .NET library allows you to license your non-free applications through activation keys. Follow the quick start instructions and try it out in 5 minutes! Available on: NuGet https://www.nuget.org/packages/SNBS.Licensing.ActivationKeys... Website (full docs, downloads) https://snbslibs.github.io/Licensing.ActivationKeys GitHub (downloads, full docs, release notes etc.) https://github.com/SNBSLibs/Licensing.ActivationKeys
2023 · github.com · its alternatives →
- 6

- 7

go generate based graphql server library. Contribute to 99designs/gqlgen development by creating an account on GitHub.
2018 · github.com · its alternatives →
- 8

Develop faster, eliminate complexity, protect your secrets
2022 · 1password.com · its alternatives →
- 9
Free software license generator & finder tool
2025 · freelicence.com · its alternatives →
- 10

Web-scale and security-hardened API key server for users, services, machine to machine, and AI agents. Token derivation brings fine-grained capability tokens to avoid common API key pitfalls. Apache2 open source for indie deployments, commercial for scalable and HA. - ory/talos
Jun 2026 · github.com · its alternatives →
- 11
Keyforge▲8Hey HN, A few months ago I realized licensing my app wasn't as straightforward as I expected. There was too much setup just to create a license, and the customer experience was not great. All I wanted was for licenses to be generated automatically when I got paid, and for customers to manage their own licenses. So I built Keyforge, a simple software licensing platform for developers. It integrates with Stripe so that licenses are created automatically when someone purchases or subscribes to your product. There's also a self-serve customer portal where users can manage their licenses,…
2025 · keyforge.dev · its alternatives →
- 12

- 13

Software sandbox for storage of sensitive information in memory. - awnumar/memguard
2017 · github.com · its alternatives →
- 14
Cryptlex▲3Generate and validate license keys to sell your products.
2018 · cryptlex.com · its alternatives →
- 15

- 16

A bash script for generating trusted self-signed SSL certs for local development on your Mac - kingkool68/generate-ssl-certs-for-local-development
2018 · github.com · its alternatives →
- 17

I built this as a small side project to learn and experiment, and I ended up with this! I used a subdomain from my personal portfolio, and everything else runs on free tiers. The project uses Nuxt, SVG, Cloudflare Workers, D1 (SQL), KV, Terraform, and some agentic coding with OpenAI Codex and Claude Code. What started as a joke among friends turned into a fun excuse to build something end to end, from zero to production, and to explore a few things I’d never touched before. I’d really appreciate any feedback or suggestions.
Jan 2026 · certificate.brendonmatos.com · its alternatives →
- 18

Let's Encrypt/ACME client and library written in Go - go-acme/lego
2015 · github.com · its alternatives →
- 19

A generator library for concise, unambiguous and URL-safe UUIDs - lithammer/shortuuid
2015 · github.com · its alternatives →
- 20

We built an open-source tool that scans your codebase and generates OpenAPI docs in minutes. Right now it supports Rails, Go, Python, and NodeJS frameworks, and we will keep adding more. It picks up routes, params, request bodies, and models directly from the code and outputs a clean OpenAPI spec you can drop into your workflow.
Nov 2025 · github.com · its alternatives →
- 21

- 22

FOSSA secures the software supply chain with automated SBOM generation, software composition analysis, license compliance, and vulnerability management.
2017 · fossa.io · its alternatives →
- 23

Sell your desktop app. We handle the license keys.
Jul 2026 · keys.sublimearts.io · its alternatives →
- 24
Also compare
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →