leon-cleaning-services/leon

Léon - The URL Cleaner is an Android application which removes tracking and other obsolete parameters from a URL before sharing. Its usage is simple, integrating into Android's standard sharing mechanism.

Léon runs on Android 7.0 and later, is open source and does not contain any tracking or advertising frameworks. Léon does not collect any data about you. Léon works offline; resolving short links is optional, off by default and only ever contacts the service that created the short link.

Léon also runs on the desktop, built with Kotlin Multiplatform and Compose Desktop, and is packaged as .deb, .rpm and .AppImage for Linux, .msi for Windows and .dmg for macOS (arm64 only). Download the latest build from the releases page.

The benefits of removing tracking parameters are:

• Protects your and the recipient's privacy
• Improves readability of links
• Saves characters (in Tweets for example)

Painting by Mondstern (CC BY-SA)

Installation

• F-Droid
  Signed through F-Droid. Find hashes of certificates here.
• IzzyOnDroid
  SHA256 of signing certificate: 3E:94:E0:C5:89:4C:17:5F:7F:15:F5:17:D4:46:FE:E0:71:10:12:B1:B1:E7:62:ED:0C:B5:B2:8C:2C:20:13:5D
• Google Play Store
  SHA256 of signing certificate: 5B:D0:A8:62:7A:04:EB:8F:C1:F1:45:C6:A6:2B:7F:E5:7C:31:E3:87:05:1E:C8:8B:B2:FB:08:22:5B:6C:D2:0B
• Obtanium
  Use the address https://github.com/leon-cleaning-services/leon when adding Léon to Obtanium

How to use

When sharing a link, select URL Cleaner as the receiving application. Then from within URL Cleaner share the cleaned URL to the actual target application.

It's also possible to select editable text in any application which supports it, then in the context menu choose Léon to sanitize text in place.

Issues & feedback

Did you find a bug or have an idea of how the app could be improved? Please report bugs or give feedback.

Translations

Léon is translated on Hosted Weblate — the app itself as well as its Play Store listing. Improving a translation or adding a new language needs nothing but a Weblate account.

API

It is possible to call Léon programmatically from other applications. See API.md for details.

Technical implementation

This app is also meant as a blueprint for modern Android development, presenting and evaluating recommended and cutting-edge technologies, patterns and libraries such as:

• Kotlin programming language
• Kotlin coroutines
• Jetpack Compose
• Jetpack Navigation 3
• Material Design 3
• Dependency Injection with Metro
• several other Jetpack & AndroidX libraries

Alternatives

• Untracker (Android)
• Tarnhelm (Android)
• URLCheck (Android)
• LinkSheet (Android)
• ClearURLs (Browser)
• Link Cleaner (Web, PWA)
• AmputatorBot (Removes AMP from URLs)

Contributors

Sven Jacobs 🚧 💻 ⚠️ 📖 🤔	Deekshith Allamaneni 🤔	jimcarst 🤔	Damon Leven 🤔	Yuhui Su 💻	Zakaria 🤔	Peter L. 🤔 🐛 💻
jaswinder77 🤔	Donno 🤔	slootsky 🤔 🐛	TPS 🤔 🐛	Robert 🤔	Ari Cooper Davis 🤔 💻 ⚠️	Christopher King 🤔
chel1k 🌍	slmb3 🤔	Klemen Skerbiš 🤔	Alex Berg 🤔	osjasmine 🐛	Philip Gillißen 🐛 🤔 💻 ⚠️	Aleksandar Zekovic 💻 ⚠️
George Kalinin 🐛	Annie 🤔	vjrj 🐛	ThiccOwl 🤔	Paul 🐛	Glitchy-Tozier 🐛	serrq 🤔
Amay 🤔	gavanore 🤔	Matthias 🤔	Felix Schneider 🤔	gl-dev 🤔	esemismo22 🤔	Mathew Attlee 🤔
alex-mayorga 🤔	ixanza 🤔	Linus Xanoni 🐛 🤔	rehork 🌍	JakeDot 🤔	yedayak 💻	ngocanhtve 🌍
BluePixel4k 🤔	John-Michael Reed 🐛	Jonathan Baby 🤔	NikunjKhangwal 🤔	Aminda Suomalainen ⚧ 🐛	rhubarb 🐛	xyrolaith 💻 🤔
Joe Breuer 💻 🐛	Dan LaManna 💻	Janusz Kowalczyk 💻	Anthony Lau 💻	Mr. RB 💻 🐛	Izzy 🚧	BG2NDR 💻 🌍
monta-gh 🌍