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Top 23 Java Encryption Projects
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Cryptomator
Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.
Cryptomator - Secure cloud storage encryption.
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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Project mention: It's 2025–Why Are Banks Still Getting Authentication So Wrong? | news.ycombinator.com | 2025-05-13
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G'day mempko, I remember firestr! Very nice! You might remember around the same time (2013) I started Peergos. We're still working on it!
https://peergos.org
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itext-java
iText for Java 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 enhance PDF documents, iText can be a boon to nearly every workflow.
Project mention: How I Made PDF Table Rendering 95% Faster in an Afternoon | news.ycombinator.com | 2025-05-16 -
DroidFS
Encrypted overlay filesystems implementation for Android. Also available on gitea: https://forge.chapril.org/hardcoresushi/DroidFS
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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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, AsyncHttp
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android-money-manager-ex
Manage your finances on-the-go, encrypted for security, and sync via your storage
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SSLContext-Kickstart
🔐 A lightweight high level library for configuring a http client or server based on SSLContext or other properties such as TrustManager, KeyManager or Trusted Certificates to communicate over SSL TLS for one way authentication or two way authentication provided by the SSLFactory. Support for Java, Scala and Kotlin based clients with examples. Available client examples are: Apache HttpClient, OkHttp, Spring RestTemplate, Spring WebFlux WebClient Jetty and Netty, the old and the new JDK HttpClient
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Authorizer
Authorizer is a Password Manager for Android. It emulates an HID keyboard over USB and enters your credentials on your target device. Additionally it supports OTP :key::mobile_phone_off: (by tejado)
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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.
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quantizr
Open-source CMS, Document Collaboration, Microblogging, and Publishing with AI Chatbot and AI Coding Agent supporting most Cloud AI providers
The original "Block Editor" (that Jupyter modeled itself after) is the one that's now called "Quanta", and has been around for decades in various forms and incantations:
https://github.com/Clay-Ferguson/quantizr
I'm thinking that Jupyter might still not be "Tree Based" but that would be a heck of a leap in capability if they "fix" that.
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AnonymousMessenger
This is an unofficial repository, for the official repository visit: https://git.anonymousmessenger.ly/dx/AnonymousMessenger
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Java Encryption discussion
Java Encryption related posts
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ArcaneChat: Private Chats for the Family
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Apple pulls data protection tool after UK government security row
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How do you backup your Android?
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Dropbox Sign Hacked
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Tim Bray's De-Google Project
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Peergos: A P2P, secure file storage, social network and application protocol
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VeraCrypt: Free, open source, disk encryption for Windows, Mac OS X, Linux
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A note from our sponsor - InfluxDB
www.influxdata.com | 24 Jun 2025
Index
What are some of the best open-source Encryption projects in Java? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Cryptomator | 12,978 |
| 2 | Aegis | 10,507 |
| 3 | hawk | 3,984 |
| 4 | jasypt-spring-boot | 2,965 |
| 5 | Peergos | 2,170 |
| 6 | itext-java | 2,114 |
| 7 | DroidFS | 751 |
| 8 | mutual-tls-ssl | 585 |
| 9 | android-money-manager-ex | 572 |
| 10 | SSLContext-Kickstart | 531 |
| 11 | Authorizer | 530 |
| 12 | password4j | 376 |
| 13 | secure-storage-android | 370 |
| 14 | spring-cloud-vault | 283 |
| 15 | AndroidLibrary | 256 |
| 16 | bouncy-gpg | 216 |
| 17 | quantizr | 205 |
| 18 | android | 200 |
| 19 | pgpainless | 174 |
| 20 | OneMoreSecret | 113 |
| 21 | Conceal SharedPreferences | 96 |
| 22 | AnonymousMessenger | 77 |
| 23 | siv-mode | 43 |
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InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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