F-Droid is an installable catalogue of FOSS (Free and Open Source Software) applications for the Android platform.

A terminal emulator and Unix environment bringing powerful terminal access to your Android-powered devices.

Browser using the Gecko layout engine to render web pages, which implements current and anticipated web standards.
Fennec F-Droid is based on the latest Firefox release. It's focused on removing any proprietary bits found in official Mozilla's builds. There might still be some binaries left and the app (or some builds) might get removed or re-pushed anytime.

The Tor software protects you by bouncing your communications around a distributed network of relays run by volunteers all around the world: it prevents somebody watching your Internet connection from learning what sites you visit, it prevents the sites you visit from learning your physical location, and it lets you access sites which are blocked.

The Tor Browser lets you use Tor on Windows, Mac OS X, or Linux without needing to install any software. It can run off a USB flash drive, comes with a pre-configured web browser to protect your anonymity, and is self-contained.

OsmAnd is a map and navigation application with access to the free, worldwide, and high-quality OpenStreetMap data.
Enjoy voice and optical navigator, viewing POIs (points of interest), creating and managing GPX tracks, using contour lines visualization and altitude info (through plugin), a choice between driving, cycling, pedestrian modes, OSM editing and much more.

Navigation
• Works online (fast) or offline (no roaming charges when you are abroad)
• Turn-by-turn voice guidance (recorded and synthesized voices)
• Optional lane guidance, street name display, and estimated time of arrival
• Supports intermediate points on your itinerary
• Automatic re-routing whenever you deviate from the route
• Search for places by address, by type (e.g.: restaurant, hotel, gas station, museum), or by geographical coordinates

Map Viewing
• Display your position and orientation
• Optionally align the picture according to compass or your direction of motion
• Save your most important places as Favorites
• Display POIs (point of interests) around you
• Display specialized online tiles, satellite view (from Bing), different overlays like touring/navigation GPX tracks and additional layers with customizable transparency
• Optionally display place names in English, local, or phonetic spelling

OSM Data
• High-quality information from the best collaborative projects of the world
• OSM data available per country or region
• Compact offline vector maps updated at least once a month

Safety Features
• Optional automated day/night view switching
• Optional speed limit display, with reminder if you exceed it
• Optional speed-dependent zooming
• Share your location so that your friends can find you

RedReader - An unofficial open source Reddit client for Android.

Telegram is a messaging app with a focus on speed and security. It’s superfast, simple, and free. It is like SMS, but more powerful.

OpenStreetMap (OSM) is a collaborative project to create a free editable map of the world.

Orbot is an open source Tor Proxy App for Android Phones. If the phone is rooted, it can even transparently route all phone internet traffic through the Tor network. Should be installed alongside Orweb, an open source Tor web browser that will automatically use Orbot.

Nitter is a free and open-source front-end mirror of Twitter, which allows you to consult Twitter, with a focus on privacy.

We are a free and open-source platform to launch your digital brand, social network and mobile app. We are also a social network ourselves. It is a global social network of social networks. Available in either decentralized or centralized options. Meaning its source code is available publicly for reviews and contributions.

• Really free speech. Zero censorship. One of the co-founder Bill Ottman is an information activist.
• Blogs, Channel, Groups, Videos
• Monetizing options. Such as monthly support which allow users to financially support you monthly to see your monetized posts. Such as Blog posts or almost any other types of posts can be monetized by clicking the dollar icon in the status field before posting. Another option to monetize is the Ad Sharing program. Users can use real money to buy you Minds points.
• For all monetizing options, users can pay you using cash, Bitcoin, credit cards, using Swipe.com services
• Exchange points for increased views with "Boost". It's peer-to-peer advertising.
• Have private, encrypted chats with friends and colleagues
• Purchase or earn points for voting, commenting, uploading, swiping
• Find people and brands in your local area with geo-location based results
• Swipe to vote on content and subscribe to channels
• Match with other minds by mutually subscribing in order to chat
• Share status updates, photos and videos
• Reach 100% of your subscribers
• Curate a news feed
• Search for amazing media
• See what's trending in the world
• Share to your other social networks
• The world's first free and open-source social network mobile app

📝 Create notes and manage your to-do list using simple markup formats
🌲 Work completely offline - whenever, wherever
👌 Compatible with any other plaintext software on any platform – edit with notepad or vim, filter with grep, convert to PDF or create a zip archive

🖍 Syntax Highlighting and format related actions – quick insert pictures and to-do
👀 Convert, preview, and share documents as HTML and PDF

📚 Notebook: Store all documents on a common filesystem folder
📓 QuickNote: Fast accessible for keeping notes
?? To-Do: Write down your to-do
🔖 LinkBox: Share pages to read later into bookmark list
🖍 Markup formats: Markdown and todo.txt
📋 Copy to clipboard: Copy any text, including text shared into Markor
💡 Notebook is the root folder of documents and can be changed to any location on filesystem. LinkBox, QuickNote and ToDo are textfiles

🎨 Highly customizeable, dark theme available
💾 Auto-Save with options for undo/redo
👌 No ads or unnecessary permissions
🌎 Language selection – use other language than on the system

💡 Unlike other office suites (like LibreOffice) or to-do apps (like Wunderlist), Markor has one streamlined text editor with no other editing UI. Markor shows how powerful and expressive simple text can be. View, edit, manipulate and convert plaintext!

🔃 Markor works with sync apps, but they have to do syncing respectively. Sync clients known to work in combination include BitTorrent Sync, Dropbox, FolderSync, OwnCloud, NextCloud, Seafile, Syncthing, Syncopoli

Google Play: https://play.google.com/store/apps/details?id=net.gsantner.markor
F-Droid: https://f-droid.org/repository/browse/?fdid=net.gsantner.markor

Best Systemless Rooting Application for Android 5.0 Lollipop or above version. Download Now : https://www.magiskroots.com/ .

Open source Android email client with support for multi-folder sync, keyboard shortcuts, and more.

Kodi, formerly XBMC, is a free and open source media player and entertainment center for Linux, Mac OS X, Windows, XBox, and iOS. Kodi is designed to be the perfect companion to a home theater PC - it supports an almost endless range of remote controls, and combined with its beautiful (and highly "skinnable") interface, Kodi feels very natural to use from the couch.

Currently Kodi can be used to play almost all popular audio and video formats around. It was designed for network playback, so you can stream your multimedia from anywhere in the house or directly from the Internet using practically any protocol available.

INSTEAD – interpreter of simple text adventures for Unix and Windows!.

Are you missing the key layout you're used to from your computer when using an Android device? This software keyboard has separate number keys, punctuation in the usual places, and arrow keys. It is based on the AOSP Gingerbread soft keyboard, so it supports multitouch for the modifier keys.

This keyboard is especially useful if you use ConnectBot for SSH access. It provides working Tab/Ctrl/Esc keys, and the arrow keys are essential for devices such as the Xoom tablet or Nexus S that don't have a trackball or D-Pad.

The supported keyboard layouts include: Armenian, Arabic, British (en_GB), Bulgarian, Czech, Danish, Dvorak English (language "en-DV"), English (QWERTY), Finnish, French, German, Greek, Hebrew , Italian, Lao, Norwegian, Persian, Portuguese, Romanian, Russian, Russian phonetic (ru-rPH), Serbian, Slovak, Slovenian (Slovenšcina)/Bosnian/Croatian/Latin Serbian, Spanish, Swedish, Thai, Turkish and Ukrainian.

FreeOTP+ is a fork of FreeOTP with an updated user interface and with backup/restore functionality (to external files or via built-in Android backup/restore).

Wings for your Windows Explorer!

Clover is an extension of the Windows Explorer, to add multi-tab functionality similar to Google Chrome browser. After Clover is installed, you will be able to open multiple folders in tabs within the same window, and you can also be able to add folder bookmarks.

Note: If you're starting Clover with a bunch of previously opened tabs, so don't be hurry for some first seconds 'cause it can freeze. Also be aware to delete some files if you use Ctrl-D hothey for bookmarking a folder 'coz the same hotkey you can set for deleting without prompt if you unchecked "Show recycle confirmation" in Explorer (or Shift-Del).

Malware Warning Information: Exercise due diligence, but understand that the required behaviour of this application will trigger some anti-malware engines which look for suspicious behavior, such as tampering with Windows Explorer. You may see warnings on this site or from your own software. Review them, but watch for 'trojan.generic' or 'gen.trojan.heuristic' types of identifiers from antivirus engines, which denote that the file does not necessarily contain identifiable harmful code, but exhibits a potentially unwanted behaviour, which is expected and desirable in most cases. Understand however, that this doesn't mean this download cannot become unsafe, infected with real malware, like other software, so read the warnings from your scanning engines to be sure.

BusyBox is a single binary that provides several stripped-down Unix tools in a single executable. It runs in a variety of POSIX environments such as Linux, Android, FreeBSD and others. It was specifically created for embedded operating systems with very limited resources. It has been self-dubbed "The Swiss Army Knife of Embedded Linux". It includes clones of netcat, httpd, init, grep, a dhcp client/server, tar, sh, ash, awk, cat, and many more utilities.

Bitwarden is the easiest and safest way to store your logins and passwords across all of your devices (iOS, Android, Chrome, Firefox, Opera, Windows, Mac, Linux, and more). Bitwarden is FREE and open source.

A free and open source podcastmanager for Android, allowing you to subscribe to podcasts (via iTunes database & OPML), automatically download episodes using powerful mechanisms and listen to them the way you like (speed, balance adjustments, etc).

AnLinux allow you to run Linux on Android without root access. by using Termux and PRoot technology, you can even run SSH and Xfce4 Desktop Environment

Currently supported distro:

Ubuntu, Debian, Kali, Parrot Security OS, Fedora, CentOS, openSUSE Leap, openSUSE Tumberweed, Arch Linux, Black Arch

Currently supported Desktop Environment:

Xfce4, Mate, LXQt, LXDE

This app requires Termux to work.

AnLinux-Adfree can found on: https://f-droid.org/packages/exa.lnx.a/

An ad blocker that uses the hosts file. The hosts file contains a list of mappings between hostnames and IP addresses. When an app requests an ad, that request is directed to 127.0.0.1 which does nothing. There are options to run a web server to respond to blocked hostnames and to direct requests to the IP address of your choosing. You can automatically download hosts files from the app but it is possible to use your own and to add certain sites to the white- and black-lists.

Open Camera is an Open Source Camera app for Android phones and tablets. Features:

Option to auto-stabilise so your pictures are perfectly level no matter what.
Expose your camera's functionality: support for focus modes, scene modes, color effects, white balance, ISO, exposure compensation/lock, face detection, torch.
Video recording (supports all available resolutions including HD).
Handy remote controls: timer (with optional voice countdown), auto-repeat mode (with configurable delay).
Option to take photo remotely by making a noise (e.g., voice, whistle), or by voice command "cheese".
Configurable volume keys.
Optimise GUI for left or right-handed users.
Zoom via multi-touch gesture and single-touch control.
Ability to lock orientation to portrait or landscape for photo or video.
Choice of save folder (including support for Lollipop's Storage Access Framework).
Disable shutter sound.
Overlay a choice of grids (including "rule of thirds") and crop guides.
Optional GPS location tagging (geotagging) of photos and videos; for photos this includes compass direction (GPSImgDirection, GPSImgDirectionRef).
Apply a date and timestamp, location coordinates, and custom text to photos; store date/time and location as video subtitles (.SRT).
Yes you can take a selfie (also known as front camera), includes support for "screen flash".
Support for (some) external microphones.
Widget to automatically take a photo after launching.
Support for Android 5 Camera2 API: manual focus distance; manual ISO; manual exposure time; RAW (DNG) files.
Support for HDR and Exposure Bracketing (Camera2 only).
Dynamic range optimisation mode for better quality photos.
Small file size.
Completely free, and no ads in the app. Open Source.

Using Signal, you can communicate instantly while avoiding SMS fees, create groups so that you can chat in real time with all your friends at once, and share media or attachments all with complete privacy. The server never has access to any of your communication and never stores any of your data.

• Say Anything - Send high-quality group, text, picture, and video messages, all without SMS and MMS fees.
• Speak Freely - Make crystal-clear phone calls to people who live across town, or across the ocean, with no long-distance charges.
• Be Yourself - Signal uses your existing phone number and address book. There are no separate logins, usernames, passwords, or PINs to manage or lose.
• Stay Secure - We cannot hear your conversations or see your messages, and no one else can either. No exceptions. You can even tap and hold on a contact's name to see advanced identity verification options. Everything in Signal is always end-to-end encrypted and painstakingly engineered in order to keep your communication safe.
• Go Fast - Signal is optimized for speed without compromise. Our state-of-the-art Axolotl protocol is unmatched in its performance, strength, and reliability.
• Remain Connected - Push notifications let you know when new messages have arrived, and they'll be waiting for you even if your battery dies or you temporarily lose service.
• Get Organized - Unique archive functionality makes it easy to keep track of the conversations that matter to you right now.
• Pay Nothing - Signal is supported by a team of dedicated developers, community donations, and grants. There are no advertisements, and it doesn't cost anything to use.
• View Source - All of our code is free, open, and available on GitHub (https://github.com/signalapp ).
• Join Movements - Technology developed by Open Whisper Systems is trusted and used by millions of people around the world every day.

Material Design
The user interface matches every single detail of the material design guidelines to ensure Phonograph is an eye candy for you. The experience is even better on devices running Android Lollipop and above.

Easy to Use
No complicated or overblown menus but a familiar and clean interface.

Last.fm Integration
Phonograph automatically downloads additional information about your artists such as their images or biographies. When you install the official Last.fm app, scrobbling will work right out of the box too.

Dynamic Colors
The UI colors change dynamically to match the main contents base color.

Customizability
There is an inbuilt theme engine with many different colors to choose from.

Tag Editor
The tag editor allows you to easily edit the tags of your music files such as title, artist, album name (...) for single songs or whole albums. You can even either let Phonograph automatically download missing album covers for you (powered by Last.fm) or choose one from your internal storage.

And OF COURSE

• Phonograph has got all those standard features such as:
• Create and edit playlists
• Homescreen widget
• Lockscreen playback controls
• "Go-To Actions" such as jump from a song or an album right to its artist
• ...

Keep in mind that this is a beta, more features are coming soon

Ripple is a "panic button" that can send it's trigger message to any app that is a "panic responder". Such apps can do things like lock, disguise themselves, delete private data, send an emergency message, and more. It is meant for situations where there is time to react, but where users need to be sure it is not mistakenly set off.

Here are two example scenarios:

An organization gets regularly raided by the security forces, who search all of the computers and mobile devices on the premises. The organization usually has at least a minute or two of warning before a raid starts. They need a very reliable way to trigger wiping all of the data from the sensitive apps.
An aid worker has lots of sensitive data about people on their device. They regularly sync that data up with a secure, central database. Occasionally, the aid worker has to leave the country on very short notice. The border guards regularly download the entire contents of mobile devices of people crossing through. While waiting in line at the border, the aid worker sees the border guards seizing people's devices, and then remembers all the data on the device, so she unlocks her phone and hits the wipe trigger, which wipes all sensitive apps from the device. When the aid worker returns to the central office, the device is again synced up with the central database.

A free instant messaging and collaboration software based on the Matrix protocol.

VLC is a free and open source cross-platform multimedia player and framework. Owned by the non-profit organization VideoLAN.

NewPipe is a lightweight YouTube front-end for Android.

It doesn't need the YouTube-API or any Google Play Services, as NewPipe only parses the YouTube website in order to gain the information it needs.
Therefore this app can be used on devices without Google Services installed. Also, you don't need a YouTube account to use NewPipe, and it's FLOSS.

Features

Search videos
Display general information about a video
Watch YouTube videos
Popup mode (floating player)
Select the streaming player to watch the video with
Download videos
Download audio only
Open a video in Kodi
Show Next/Related videos
Search YouTube in a specific language
Watch/Block age restricted material
Display general information about channels
Search channels
1080p/2K/4K support
Local playlists
Subtitles
Livestream support
Show comments

Feeder is a fully free/libre feed reader. It supports all common feed formats, including JSONFeed. It doesn't track you. It doesn't require any setup. It doesn't even need you to create an account! Just setup your feeds, or import them from your old reader via OPML, then get on with syncing and reading.

Features

Parses HTML and displays it in a native TextView

Offline reading

Background synchronization

Notifications

OPML Import/Export

Handy access to enclosure links

Material design

A free and open source manga reader for Android. It takes manga from sources like Mangadex, KissManga, etc.

Fedilab is a multifunctional Android client to access the distributed Fediverse, consisting of microblogging, photo sharing and video hosting.

Tired of seeing ads and promotions in your timeline, being disrupted by tweets from bots and people you don't like, or just want a pure Twitter experience back like the good old days? Try Twidere for Twitter!

Twidere is an open source, fully featured Twitter/Mastodon/StatusNet/Fanfou app.

Features

• 100% Material Design
• Classic reply style w/ advantages of 140 characters reply
• Restore 'Favorite' (?) instead of 'Like' (??)
• Schedule tweets even when you're offline by Buffer
• Tweet with photos, videos
• Search & share GIFs by GIPHY
• Powerful mute filters
• Night mode
• Multiple account support
• Fully customizable tabs
• Powerful custom API settings
• Free*, open source, NO ads, forever!

*: A small amount of features requires in app payments to activate.

Linux CLI lets you use a custom, linux command line interface as your home screen.

FEATURES

• T-UI commands (like uninstall, open, sms and more)
• Native Android/Linux commands
• aliases, use your favourites commands faster
• suggestions, to help you compose your commands
• tuixt, in-app text editor
• widely customizable launcher
• CLI music playe
• full Linux-like CLI interface