#1
Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.
15K starsJun 19, 2026 pushlegal-complianceJavaPrivacy
$ npx skills add cryptomator/cryptomatorAlternatives
Concrete alternatives for AI agents.
Compare similar skills by workflow fit, trust score, quality, GitHub adoption, maintenance, and install readiness.
Current skill
Concrete
Concrete: TFHE Compiler that converts python programs into FHE equivalent
84
Quality
81
Trust
1.6K
Stars
#2
Monero: the secure, private, untraceable cryptocurrency
11K starsJun 20, 2026 pushlegal-complianceC++Privacy
$ npx skills add monero-project/monero#3
💚 End-to-end encrypted cloud for everything.
27K starsJun 29, 2026 pushlegal-complianceDartPrivacy
$ npx skills add ente/ente#4
💚 End-to-end encrypted cloud for everything.
27K starsJun 16, 2026 pushlegal-complianceDartPrivacy
$ npx skills add ente-io/ente#5
FHEVM, a full-stack framework for integrating Fully Homomorphic Encryption (FHE) with blockchain applications
25K starsJun 16, 2026 pushlegal-complianceRustPrivacy
$ npx skills add zama-ai/fhevm#6
Set up your own IPsec VPN server in just a few minutes, with IPsec/L2TP, Cisco IPsec and IKEv2. Supports Ubuntu, Debian, CentOS/RHEL, Amazon Linux, Alpine and Raspberry Pi. Includes client config and management scripts.
28K starsJun 16, 2026 pushlegal-complianceShellPrivacy
$ npx skills add hwdsl2/setup-ipsec-vpn#7
Set up your own OpenVPN server on Debian, Ubuntu, Fedora, CentOS, Arch Linux and more
16K starsJun 18, 2026 pushlegal-complianceShellPrivacy
$ npx skills add angristan/openvpn-install#8
SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱!
11K starsJun 20, 2026 pushlegal-complianceHaskellPrivacy
$ npx skills add simplex-chat/simplex-chat#9
Perform data science on data that remains in someone else's server
9.9K starsJun 20, 2026 pushlegal-compliancePythonPrivacy
$ npx skills add OpenMined/PySyft#10
Send files and folders anywhere in the world without storing in cloud - any size, any format, no accounts, no restrictions.
8.3K starsJun 19, 2026 pushlegal-complianceTypeScriptPrivacy
$ npx skills add tonyantony300/alt-sendme#11
KeePassXC is a cross-platform community-driven port of the Windows application “KeePass Password Safe”.
28K starsJun 4, 2026 pushlegal-complianceC++Privacy
$ npx skills add keepassxreboot/keepassxc#12
Berty is a secure peer-to-peer messaging app that works with or without internet access, cellular data or trust in the network
9.2K starsJun 19, 2026 pushlegal-complianceTypeScriptPrivacy
$ npx skills add berty/berty#13
Private, fast, and honest web browser
18K starsJun 20, 2026 pushlegal-complianceC++Privacy
$ npx skills add imputnet/helium#14
🍃 Organic Maps is a free Android & iOS offline maps app for more than 6M travelers, tourists, hikers, and cyclists. It uses crowd-sourced OpenStreetMap data and is developed with love by the community. No ads, no tracking, no data collection, no crapware. Please donate to support the development!
14K starsJun 20, 2026 pushlegal-complianceC++Privacy
$ npx skills add organicmaps/organicmaps#15
Docker image to run an IPsec VPN server, with IPsec/L2TP, Cisco IPsec and IKEv2. Auto-generates server config and supports VPN client setup on Linux, Windows, macOS, iOS and Android.
7.1K starsJun 16, 2026 pushlegal-complianceShellPrivacy
$ npx skills add hwdsl2/docker-ipsec-vpn-server#16
Prowler is the world’s most widely used open-source cloud security platform that automates security and compliance across any cloud environment.
14K starsJun 17, 2026 pushlegal-compliancePythonGDPR
$ npx skills add prowler-cloud/prowlerHow to choose
When should you switch?
Use an alternative when it has a clearer install path, higher trust score, fresher maintenance, or better platform fit for your current agent stack. Keep Concrete if it already passes your workflow test and repository review.
Next step
Compare top candidates side by side
Open the compare page, test the install commands in a sandbox, and check each repository before using a skill in production.