1.simplex-chat / simplex-chat
SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱!
+8,786 stars
from 10,838 · score 9.08
Trending repositories
Ranked by Attention Score: stars gained over the last 180 complete days
66 repositories by Attention Score · May 7, 2026 – Nov 2, 2026 (UTC)
2.rclone / rclone
"rsync for cloud storage" - Google Drive, S3, Dropbox, Backblaze B2, One Drive, Swift, Hubic, Wasabi, Google Cloud Storage, Azure Blob, Azure Files, Yandex Files
+4,041 stars
from 56,663 · score 8.30
3.ente / ente
💚 End-to-end encrypted cloud for everything.
+3,899 stars
from 25,918 · score 8.27
4.LearningCircuit / local-deep-research
~95% on SimpleQA (e.g. Qwen3.6-27B on a 3090). Supports all local and cloud LLMs (llama.cpp, Ollama, Google, ...). 10+ search engines - arXiv, PubMed, your private documents. Everything Local & Encrypted.
+3,749 stars
from 5,727 · score 8.23
5.veracrypt / VeraCrypt
Disk encryption with strong security based on TrueCrypt
+2,379 stars
from 9,644 · score 7.77
6.spacedriveapp / spacedrive
Spacedrive is an open source cross-platform file explorer, powered by a virtual distributed filesystem written in Rust.
+1,787 stars
from 37,579 · score 7.49
7.gchq / CyberChef
The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis
+1,737 stars
from 34,547 · score 7.46
8.kopia / kopia
Cross-platform backup tool for Windows, macOS & Linux with fast, incremental backups, client-side end-to-end encryption, compression and data deduplication. CLI and GUI included.
+1,510 stars
from 13,043 · score 7.32
9.cryptomator / cryptomator
Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.
+1,495 stars
from 14,918 · score 7.31
10.hwdsl2 / setup-ipsec-vpn
Set up your own IPsec VPN server in just a few minutes, with IPsec/L2TP, Cisco IPsec and IKEv2. Supports Ubuntu, Debian, CentOS/RHEL, Alpine Linux and Raspberry Pi OS. Includes client config and management scripts.
+1,334 stars
from 27,593 · score 7.20
11.openssl / openssl
General purpose TLS and crypto library
+1,287 stars
from 29,871 · score 7.16
12.beemdevelopment / Aegis
A free, secure and open source app for Android to manage your 2-step verification tokens.
+1,175 stars
from 12,269 · score 7.07
13.peazip / PeaZip
Free Zip / Unzip software and Rar file extractor. Cross-platform file and archive manager. Features volume spanning, compression, authenticated encryption. Supports 7Z, 7-Zip sfx, ACE, ARJ, Brotli, BZ2, CAB, CHM, CPIO, DEB, GZ, ISO, JAR, LHA/LZH, NSIS, OOo, PAQ/LPAQ, PEA, QUAD, RAR, RPM, split, TAR, Z, ZIP, ZIPX, Zstandard.
+898 stars
from 7,158 · score 6.80
14.duplicati / duplicati
Store securely encrypted backups in the cloud!
+783 stars
from 14,395 · score 6.66
15.borgbackup / borg
Deduplicating archiver with compression and authenticated encryption.
+702 stars
from 13,198 · score 6.56
16.tutao / tutanota
Tuta is an email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices.
+651 stars
from 7,442 · score 6.48
17.angristan / openvpn-install
Set up your own OpenVPN server on Debian, Ubuntu, Fedora, CentOS, Arch Linux and more
+531 stars
from 15,648 · score 6.28
18.trailofbits / algo
Set up a personal VPN in the cloud
+392 stars
from 30,058 · score 5.97
19.sobolevn / awesome-cryptography
A curated list of cryptography resources and links.
+325 stars
from 6,863 · score 5.79
20.pglombardo / PasswordPusher
🔐 Securely share sensitive information with automatic expiration & deletion after a set number of views or duration. Track who, what and when with full audit logs.
+268 stars
from 2,972 · score 5.59
21.str4d / rage
A simple, secure and modern file encryption tool (and Rust library) with small explicit keys, no config options, and UNIX-style composability.
+264 stars
from 3,443 · score 5.58
22.amark / gun
An open source cybersecurity protocol for syncing decentralized graph data.
+193 stars
from 18,966 · score 5.27
23.wolfSSL / wolfssl
The wolfSSL library is a small, fast, portable implementation of TLS/SSL for embedded devices to the cloud. wolfSSL supports up to TLS 1.3 and DTLS 1.3! Update to wolfSSL 5.9.1 for the latest CVE fixes.
+190 stars
from 2,794 · score 5.25
24.Tencent / BqLog
A lightweight, high-performance, industrial-grade cross-language logging library (C++/Java/C#/Kotlin/TS/Python/Go), battle-tested in Honor of Kings.
+188 stars
from 530 · score 5.24
25.txthinking / brook
A cross-platform programmable network tool
+158 stars
from 15,034 · score 5.07
26.Peergos / Peergos
A p2p, secure file storage, social network and application protocol
+157 stars
from 2,389 · score 5.06
27.TokTok / c-toxcore
The future of online communications.
+98 stars
from 2,598 · score 4.60
28.nilsteampassnet / TeamPass
Self-hosted collaborative password manager for teams: folder-level access control, AES-256-GCM encryption, LDAP/AD, OAuth2 SSO, audit trail, REST API, browser extension. PHP/MySQL, Docker.
+93 stars
from 1,780 · score 4.54
29.securitybunker / databunker
Secure Vault for Customer PII/PHI/PCI/KYC Records
+84 stars
from 1,410 · score 4.44
30.aws / s2n-tls
An implementation of the TLS/SSL protocols
+79 stars
from 4,707 · score 4.38
31.zlib-ng / minizip-ng
Fork of the popular zip manipulation library found in the zlib distribution.
+65 stars
from 1,445 · score 4.19
32.HemmeligOrg / Hemmelig.appArchived
Keep your sensitive information out of chat logs, emails, and more with encrypted secrets.
+62 stars
from 1,183 · score 4.14
33.Luzifer / ots
One-Time-Secret sharing platform with a symmetric 256bit AES encryption in the browser
+62 stars
from 747 · score 4.14
34.jkroepke / helm-secrets
A helm plugin that help manage secrets with Git workflow and store them anywhere
+57 stars
from 1,980 · score 4.06
35.paulmillr / noble-ciphers
Audited & minimal JS implementation of Salsa20, ChaCha and AES
+54 stars
from 378 · score 4.01
36.sobolevn / git-secret
:busts_in_silhouette: A bash-tool to store your private data inside a git repository.
+53 stars
from 4,002 · score 3.99
37.libtom / libtomcrypt
LibTomCrypt is a fairly comprehensive, modular and portable cryptographic toolkit that provides developers with a vast array of well known published block ciphers, one-way hash functions, chaining modes, pseudo-random number generators, public key cryptography and a plethora of other routines.
+49 stars
from 1,750 · score 3.91
38.HaschekSolutions / pictshare
:camera: PictShare is an open source image, mp4, pastebin hosting service with a simple resizing and upload API that you can host yourself. :rice_scene:
+47 stars
from 904 · score 3.87
39.build-trust / ockam
Orchestrate end-to-end encryption, cryptographic identities, mutual authentication, and authorization policies between distributed applications – at massive scale.
+41 stars
from 4,598 · score 3.74
40.itext / itext-dotnet
iText for .NET is the .NET version of the iText library, formerly known as iTextSharp, which it replaces. iText represents the next level of SDKs for developers that want to take advantage of the benefits PDF can bring. Equipped with a better document engine, high and low-level programming capabilities and the ability to create, edit and enha
+36 stars
from 1,907 · score 3.61
41.cossacklabs / acra
Database security suite. Database proxy with field-level encryption, search through encrypted data, SQL injections prevention, intrusion detection, honeypots. Supports client-side and proxy-side ("transparent") encryption. SQL, NoSQL.
+26 stars
from 1,469 · score 3.30
42.cossacklabs / themis
Easy to use cryptographic framework for data protection: secure messaging with forward secrecy and secure data storage. Has unified APIs across 14 platforms.
+25 stars
from 1,957 · score 3.26
43.ankane / lockbox
Modern encryption for Ruby and Rails
+25 stars
from 1,586 · score 3.26
44.fwdai / rowel
🔑 Local-first Secrets Manager
+25 stars
from 935 · score 3.26
45.Password4j / password4j
Java cryptographic library that supports Argon2, bcrypt, scrypt and PBKDF2 aimed to protect passwords in databases. Easy to use by design, highly customizable, secure and portable. All the implementations follow the standards and have been reviewed to perform better in the JVM.
+20 stars
from 418 · score 3.04
46.nccgroup / featherduster
An automated, modular cryptanalysis tool; i.e., a Weapon of Math Destruction
+13 stars
from 1,128 · score 2.64
47.Hakky54 / ayza
🔐 An SSL library for configuring http client or server. Rich with features such as hot reloading ssl and trusting additional certificates during runtime, combining multiple keystores, loading pem files and os/jdk certificates, logging certificate information during ssl handshake, bypassing ssl configuration from other libraries and more
+13 stars
from 567 · score 2.64
48.ektrah / nsec
A modern and easy-to-use cryptographic library for .NET based on libsodium
+13 stars
from 439 · score 2.64
49.spieglt / Cloaker
Simple, drag-and-drop, password-based file encryption
+13 stars
from 429 · score 2.64
50.buttercup / buttercup-desktopArchived
:key: Cross-Platform Passwords & Secrets Vault
+12 stars
from 4,368 · score 2.56
51.kjur / jsrsasign
CAUTION: END OF SUPPORT ON 14 AUG 2026. The 'jsrsasign' (RSA-Sign JavaScript Library) is an opensource free cryptography library supporting RSA/RSAPSS/ECDSA/DSA signing/validation, ASN.1, PKCS#1/5/8 private/public key, X.509 certificate, CRL, OCSP, CMS SignedData, TimeStamp, CAdES and JSON Web Signature/Token in pure JavaScript.
+12 stars
from 3,357 · score 2.56
52.sE2EEnd / sE2EEnd
File transfer solution with end-to-end encryption.
+12 stars
from 0 · score 2.56
53.danielberkompas / cloak
Elixir encryption library designed for Ecto
+11 stars
from 619 · score 2.48
54.backup / backup
Easy full stack backup operations on UNIX-like systems.
+10 stars
from 4,849 · score 2.40
55.89luca89 / pakkero
Pakkero is a binary packer written in Go made for fun and educational purpose. Its main goal is to take in input a program file (elf binary, script, even appimage) and compress it, protect it from tampering and intrusion.
+10 stars
from 272 · score 2.40
56.ssh-vault / ssh-vault
🌰 encrypt/decrypt using ssh keys
+9 stars
from 502 · score 2.30
57.dvsekhvalnov / jose-jwt
Ultimate Javascript Object Signing and Encryption (JOSE), JSON Web Token (JWT) and Json Web Keys (JWK) Implementation for .NET and .NET Core
+8 stars
from 1,014 · score 2.20
58.Hakky54 / mutual-tls-ssl
🔐 Tutorial of setting up Security for your API with one way authentication with TLS/SSL and mutual authentication for a java based web server and a client with both Spring Boot. Different clients are provided such as Apache HttpClient, OkHttp, Spring RestTemplate, Spring WebFlux WebClient Jetty and Netty, the old and the new JDK HttpClient, the old and the new Jersey Client, Google HttpClient, Unirest, Retrofit, Feign, Methanol, vertx, Scala client Finagle, Featherbed, Dispatch Reboot, AsyncHttpClient, Sttp, Akka, Requests Scala, Http4s Blaze, Kotlin client Fuel, http4k, Kohttp and ktor. Also other server examples are available such as jersey with grizzly. Also gRPC, WebSocket and ElasticSearch examples are included
+8 stars
from 629 · score 2.20
59.davidalmeidac / sealed-env
Encrypted .env files with TOTP unsealing for production deploys. Cross-stack (Node + Java). Zero deps. Defends against npm supply-chain attacks.
+8 stars
from 1 · score 2.20
60.TakeScoop / SwiftyRSA
RSA public/private key encryption in Swift
+6 stars
from 1,298 · score 1.95
61.krzyzanowskim / ObjectivePGP
ObjectivePGP is an open-source library for iOS and macOS that provides developers with tools for implementing OpenPGP encryption and decryption, digital signing, and signature verification in their applications, thereby enhancing security and data integrity.
+6 stars
from 721 · score 1.95
62.FileShot / FileShotZKE
Client-side AES-256-GCM zero-knowledge encryption library. Browser-native Web Crypto API, no dependencies. Powers FileShot.io.
+6 stars
from 27 · score 1.95
63.KishanBagaria / padding-oracle-attacker
🔓 CLI tool and library to execute padding oracle attacks easily, with support for concurrent network requests and an elegant UI.
+5 stars
from 216 · score 1.79
64.bad-antics / n01d-forge
🔥 n01d-forge - Secure Cross-Platform Image Burner with Encryption | LUKS, VeraCrypt, Secure Erase, Hash Verification
+5 stars
from 9 · score 1.79
65.airsidemobile / JOSESwift
A framework for the JOSE standards JWS, JWE, and JWK written in Swift.
+3 stars
from 222 · score 1.39
66.ixian-platform / QuIXI
Quick integration toolkit for Ixian. Connects apps, IoT devices, AI Agents, and services to the Ixian Platform via REST APIs and message queues (MQTT/RabbitMQ). Provides developers with a simple bridge into secure Ixian communication and Client Discovery.
+3 stars
from 5 · score 1.39