Top 23 Encryption Open-Source Projects

1. rclone

   1 996 57,991 9.8 Go

   "rsync for cloud storage" - Google Drive, S3, Dropbox, Backblaze B2, One Drive, Swift, Hubic, Wasabi, Google Cloud Storage, Azure Blob, Azure Files, Yandex Files

   

   Project mention: Rclone: "Rsync for Cloud Storage" | news.ycombinator.com | 2026-06-18

2. SaaSHub

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3. spacedrive

   2 31 38,415 9.9 Rust

   Spacedrive is an open source cross-platform file explorer, powered by a virtual distributed filesystem written in Rust.

   

4. CyberChef

   3 314 35,208 9.5 JavaScript

   The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis

   

   Project mention: Multiple JetBrains IDE plugins caught stealing AI keys | news.ycombinator.com | 2026-06-17

   Yea, the process overall has a fairly cool name as well “de-fang”. Overall it helps security teams share these indicators safely without having to worry about Slack or any other tool hyperlinking them automatically.

   There are tools online to help you do this as well

   https://gchq.github.io/CyberChef/#recipe=Defang_URL(true,tru...

5. OpenSSL

   4 186 30,376 9.9 C

   General purpose TLS and crypto library

   

   Project mention: Building a web server in aarch64 assembly to give my life (a lack of) meaning | news.ycombinator.com | 2026-05-11

   You could borrow the output of the perl scripts from openssl.

   https://github.com/openssl/openssl/blob/master/crypto/aes/as...

6. algo

   5 159 30,295 9.1 Python

   Set up a personal VPN in the cloud

   

   Project mention: AlgoVPN 2.0 Release | news.ycombinator.com | 2025-08-23

7. setup-ipsec-vpn

   6 34 28,086 7.5 Shell

   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.

   

8. ente

   7 44 27,299 10.0 Dart

   💚 End-to-end encrypted cloud for everything.

   

   Project mention: Want your images back? Sure... That'll be $5! | news.ycombinator.com | 2026-06-17

9. gun

   8 249 19,064 4.2 JavaScript

   An open source cybersecurity protocol for syncing decentralized graph data.

   

   Project mention: Gun: An Ecosystem of Tools for Distributed Applications | dev.to | 2026-02-16

   Documentation

10. openvpn-install

    9 110 15,991 9.2 Shell

    Set up your own OpenVPN server on Debian, Ubuntu, Fedora, CentOS, Arch Linux and more (by angristan)

    

    Project mention: Monitoring OpenVPN with Prometheus and Grafana: A Complete Guide | dev.to | 2025-09-26

    First, ensure your OpenVPN server is configured to write status files. If you don't have OpenVPN set up yet, I recommend using the excellent openvpn-install script:

11. Cryptomator

    10 504 15,524 9.8 Java

    Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.

    

    Project mention: Show HN: Stop paying for Dropbox/Google Drive, use your own S3 bucket instead | news.ycombinator.com | 2026-04-07

    > I dislike Dropbox for reasons that aren't technical, but the big thing for me is that I want either E2EE, or control/ownership of where my data is stored.

    You could run something like Cryptomator on top of Dropbox:

    https://cryptomator.org/

    It even has (paid) iOS and Android apps for mobile access.

12. brook

    11 13 15,135 6.8 Go

    A cross-platform programmable network tool

    

    Project mention: Ask HN: The government of my country blocked VPN access. What should I use? | news.ycombinator.com | 2025-08-28

    Agreed, the best tools for circumventing The Great Firewall of China are Chinese developers. github.com/txthinking/brook comes to mind..

13. Duplicati

    12 24 14,688 9.9 C#

    Store securely encrypted backups in the cloud!

    

    Project mention: Backblaze has stopped backing up your data | news.ycombinator.com | 2026-04-16

    This is at the core an issue with how file-sync is being done now versus in the past.

    If you have a folder shared with 10 people, most likely only a few files will be accessed by others and the rest is dormant on all but one machine. Downloading and storing all these files is an expense in transfer fees and to some extent a waste of local disk space.

    For that reason, cloud sync tools no longer copy everything up front, but transfer on-demand. Most tools have an option where you can choose "Make available offline" that will make a specific folder always synced.

    That said, silently excluding a folder is very problematic, even if there is a good reason for it.

    I work on the open-source Duplicati backup tool (https://github.com/duplicati/duplicati) and we take special care to not silently skip things as this is likely to cause problems when you want to restore later. For instance, you will get a lot of warnings if you try to make a backup of a cloud-synced folder, as the cloud-sync cannot keep up with the speed of the backup.

    If you like the pricing of B2 but not the backup tool, you can use a B2 bucket (pay per usage, not flat rate) and have Duplicati back up to the bucket.

14. kopia

    13 242 13,520 9.6 Go

    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.

    

    Project mention: OneDrive data now has an expiry date | news.ycombinator.com | 2026-06-08

    There are actually really good free backup solutions, like kopia.io/

15. BorgBackup

    14 346 13,457 9.8 Python

    Deduplicating archiver with compression and authenticated encryption.

    

    Project mention: Ask HN: What Are You Working On? (February 2026) | news.ycombinator.com | 2026-02-08

    Hey, sorry it was hacked.

    You mention rsync which can be fine. But there are tons of other solutions, many that will have snapshot features. I use borg backup, for instance. https://www.borgbackup.org/

    Also, look into scriping your server setup with tools like Ansible or PyInfra. There is always the risk that bad things happen to servers, and when you want a new server it's great to be able to spin things up in a matter of minutes. Tools like these are profesional best practices these days.

    In fact, if you have a scripted server setup and a server that doesn't collect data itself you may not even need backups. What is there to backup? Just spin up a new server with your scripts and carry on.

16. simplex-chat

    15 282 13,109 9.4 Haskell

    SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱!

    

    Project mention: SimpleX: A messaging platform with no user identifiers | news.ycombinator.com | 2026-06-29

17. Aegis

    16 305 12,660 6.7 Java

    A free, secure and open source app for Android to manage your 2-step verification tokens.

    

    Project mention: GitHub now requiring 2FA for all contributors,what authenticator apps you using? | news.ycombinator.com | 2026-03-26

    Aegis (local) github.com/beemdevelopment/aegis

    Bitwarden Authenticator (local) https://bitwarden.com/products/authenticator/

    Ente (encrypted cloud backup) https://ente.com/auth/

18. VeraCrypt

    17 77 10,052 9.6 C

    Disk encryption with strong security based on TrueCrypt

    

    Project mention: Microsoft gave FBI set of BitLocker encryption keys to unlock suspects' laptops | news.ycombinator.com | 2026-01-23

    The performance loss can be substantcial on modern NVMe drives, up to 20 times lower. But I was wrong about the reason for the performance loss, it's not TRIM but how VeraCrypt handles I/O operations. You can see some numbers real numbers in this Github issue: github.com/veracrypt/VeraCrypt/issu...

19. Bash-Snippets

    18 4 9,932 3.7 Shell

    A collection of small bash scripts for heavy terminal users

    

20. berty

    19 79 9,219 8.6 TypeScript

    Berty is a secure peer-to-peer messaging app that works with or without internet access, cellular data or trust in the network

    

    Project mention: Jack Dorsey Releases BitChat: Encrypted Messaging via Bluetooth LE Mesh | news.ycombinator.com | 2025-07-06

21. local-deep-research

    20 6 8,605 10.0 Python

    ~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.

    

    Project mention: Local Deep Research: Run Your Own AI Research Assistant, Fully Private | dev.to | 2026-05-06

    Local Deep Research is a self-hosted AI research assistant. You give it a question. It searches across multiple sources — web, arXiv, PubMed, Wikipedia, GitHub, your own local documents — iterates on what it finds, and produces a structured report with citations.

22. alt-sendme

    21 25 8,327 9.8 TypeScript

    Send files and folders anywhere in the world without storing in cloud - any size, any format, no accounts, no restrictions.

    

    Project mention: Localsend: An open-source cross-platform alternative to AirDrop | news.ycombinator.com | 2026-04-28

    Look into Sendme [0] and AltSendme [1] (which is a GUI around the former), they use Iroh [2] which is an open-source encrypted peer-to-peer relay service to send data so there are no limits whatsoever for sending and receiving files, because there's no central server.

    From my earlier comment about a similar thread a couple days ago about which file sharing apps people use [3]:

    [0] https://github.com/n0-computer/sendme

    [1] https://github.com/tonyantony300/alt-sendme

    [2] https://github.com/n0-computer/iroh

    [3] https://news.ycombinator.com/item?id=47906587

23. staticrypt

    22 23 7,966 3.8 HTML

    Password protect a static HTML page, decrypted in-browser in JS with no dependency. No server logic needed.

    

    Project mention: Show HN: Pagecast – Publish Markdown/HTML Reports to Cloudflare Pages | news.ycombinator.com | 2026-06-18

24. Tutanota makes encryption easy

    23 475 7,721 9.9 TypeScript

    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.

    

    Project mention: Tuta: FOSS email service with privacy, encrypt emails, contacts and calendar | news.ycombinator.com | 2026-04-25

Encryption related posts

• Multiple JetBrains IDE plugins caught stealing AI keys

  1 project | news.ycombinator.com | 17 Jun 2026

• OneDrive data now has an expiry date

  1 project | news.ycombinator.com | 8 Jun 2026

• Show HN: DropLock – E2EE secret sharing web app with no back end

  1 project | news.ycombinator.com | 2 Jun 2026

• x.klickd v4.1: Portable, Encrypted, Human-Governed Memory for AI Workflows That Don’t Reset

  1 project | dev.to | 30 May 2026

• I created a fork of GunDB and rewrote it in TypeScript using Vibe Code

  2 projects | dev.to | 30 May 2026

• .klickd v4.0.0 — Portable AI memory with constraints, strict schemas, and test vectors

  1 project | dev.to | 25 May 2026

• Show HN: Rmux – A programmable terminal multiplexer with a Playwright-style SDK

  6 projects | news.ycombinator.com | 21 May 2026
• A note from our sponsor - SaaSHub
  www.saashub.com | 29 Jun 2026

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