KTool sends web articles, newsletters, X threads and RSS feeds to your Kindle as clean, high-quality e-books, so you can read off-screen.

One-click send from browser extensions, iOS and Android, with offline reading and Kindle-native highlights, bookmarks and themes.
Best-in-class conversion that strips ads, preserves formatting, detects tables of contents and optimises images and emoji.
Bundles, custom digests, on-demand related-article conversion, newsletter support and downloadable EPUBs on Platinum.

Loved by 10,000+ readers, with a 7-day free trial and a 14-day refund window.