Send web articles to your Xteink X4 as clean EPUBs
Convert any long-form article into a beautifully formatted EPUB and send it directly to your e-reader. Available on Chrome, Firefox, iOS, and Android. No accounts, no cloud, just reading.
Choose your path
Quick Start
Available Everywhere
Get Send to X4 on your favourite platform. Same great experience, every device.
Why Send to X4?
The Problem
You find a great article online, but reading on your phone or laptop is distracting. You want to read it on your Xteink X4 e-reader for better focus and eye comfort. But getting web content onto an e-reader usually means:
- Copying text manually into a document
- Using read-later services that require accounts and sync to cloud
- Dealing with cluttered web pages full of ads and popups
- Connecting cables and converting file formats
The Solution
Send to X4 eliminates all that friction. From your browser or your phone, one action extracts just the article content, formats it as a clean EPUB, and uploads it directly to your X4. No accounts, no cloud servers, no tracking. Everything happens locally on your device.
On mobile, it integrates with your phone's Share Sheet — so you can send articles from Safari, Chrome, or any app that supports sharing.
Features
Core reading features
One-Click Send
Instantly convert any article into a beautifully formatted EPUB and send it to your X4.
Share Sheet
Integrated with the OS share menu. Just tap Share from any browser or app.
Twitter Threads
Automatically stitches Twitter/X threads into a single readable chapter.
Offline & Private
Zero tracking. No accounts. No servers. Local processing on every platform.
Article Queue
Queue multiple articles and send them all at once in a batch transfer.
Device & customization extras
File Manager
View, sort, and delete files directly on your X4 device from the extension or app.
Send Notes
Write notes and send them as plain text or richly formatted EPUB documents with custom titles.
Screensavers
Upload custom BMP images to use as screensavers on your X4.
Sleep Screen Designer
Hand-draw doodles or create persistent custom designs and apply them as your X4's sleep screen.
Smart Organization
Automatic date-based subfolders keep your growing on-device library beautifully organized.
Print for Hobonichi
Export content as carefully formatted PDFs suitable for Hobonichi planners.
CrossPoint Firmware
Native support for CrossPoint community firmware with auto-configured IP settings.
How It Works
From browser or phone to e-reader in three simple steps.
Find an Article
Open any long-form article, blog post, or news story in your browser or any app on your phone.
Share or Click Send
Use the extension popup in your browser, or tap "Share → Send to X4" from your phone's share menu.
Read on Your X4
Your article will appear on your e-reader in seconds, beautifully formatted and distraction-free.
Quick Tips
- Browser: Load the article first on internet WiFi, then switch to the X4 hotspot before clicking Send.
- Mobile: Connect your phone to the same WiFi as your X4, then share directly from any app.
- Fallback: Use the Download option to save the EPUB locally if X4 is unreachable.
The App in Action
Swipe through the key features of Send to X4.
Privacy & Security
Send to X4 is built with privacy as a core principle — on every platform. Here's what that means:
Your articles are never uploaded to any server. Everything stays on your device and your X4.
No sign-ups, no emails, no personal information required. Install and use immediately.
No analytics, no telemetry, no cookies. We don't even know you're using it.
The entire project — mobile apps and browser extensions — is fully open source on GitHub under the MIT license. Inspect it, audit it, contribute to it.
Fully Open Source
The entire Send to X4 stack — mobile apps and browser extensions — is open source under the MIT license. Star it, fork it, contribute to it.
Mobile App
React Native / Expo + TypeScript — iOS & Android
Xatpy/send-to-x4-mobile-app →Browser Extension
JavaScript — Chrome, Firefox & Chromium-based browsers
Xatpy/send-to-x4 →PRs welcome! Please open an issue for bugs or feature requests on the Mobile App repo or Browser Extension repo.
Contribute on GitHubCompatibility
- Browser Extension: Google Chrome, Chromium-based browsers (Edge, Brave, Arc), Mozilla Firefox
- Mobile App: iOS 15+ (iPhone & iPad), Android 8+
- Device: Xteink X4 e-ink reader — Stock firmware and CrossPoint community firmware
- Content: Long-form articles, blog posts, news stories, Twitter/X threads, plain-text notes
- Limitations: Cannot bypass paywalls; requires same WiFi network as X4
Frequently Asked Questions
Is there a mobile app?
Yes! Send to X4 is available as a native app on both iOS and Android, in addition to the Chrome and Firefox browser extensions. The mobile app integrates with your phone's Share Sheet, so you can send articles from any browser or app.
Does Send to X4 upload my articles to any cloud?
No. Send to X4 is completely offline-first on all platforms. All processing happens locally on your device. The only network communication is directly to your X4 device over its local WiFi.
Do I need to create an account?
No. Send to X4 requires no accounts, no sign-ups, and no personal information. Just install and start using it immediately.
Does it work on paywalled or subscriber-only sites?
Send to X4 can only extract content that is visible in your browser or app. If you are logged in and can see the full article, it will extract it. It cannot bypass paywalls.
What gets stripped from the article?
Send to X4 uses Mozilla's Readability library to extract only the main article content. Ads, navigation menus, sidebars, popups, and other clutter are automatically removed.
Why do I need to connect to the X4 WiFi?
The Xteink X4 uses a local WiFi connection for file transfers. You connect your computer or phone to the same network so the app or extension can upload files directly to your device without any cloud intermediary.
What is CrossPoint Firmware?
CrossPoint is a community-developed alternative firmware for the Xteink X4 that offers enhanced features. Send to X4 fully supports CrossPoint and will automatically adjust its connection settings when you select it in the settings.
Is the mobile app open source?
Yes! The mobile app is fully open source under the MIT license. You can find the source code at github.com/Xatpy/send-to-x4-mobile-app. Contributions are welcome!
Where can I report bugs or request features?
You can open an issue on the GitHub repositories: mobile app or browser extension. The entire project is open source and welcomes contributions.
Ready to read distraction-free?
Install Send to X4 on your favourite platform and start sending articles to your e-reader in seconds.