Open-source tools for Xteink e-readers: firmware that replaces the stock reader, and a desktop app that prepares your books for it.

Firmware

An open-source XTCH reader firmware for the Xteink X3 and X4, replacing the stock CrossPoint software.

  • Blits pre-rendered .xtch page bitmaps straight from the SD card — no on-device layout or scaling
  • One firmware binary per device, tuned for its panel (X3: 792×528, X4: 800×480)
  • Home, browser, reader, chapters, settings, and update screens
  • Firmware updates from SD, with a recovery picker if something goes wrong
  • Settings and per-book reading progress saved on the SD card

Cookbook

A desktop app (macOS and Windows) that converts ebooks and PDFs for eink readers.

  • .xtch output for Xteink / CrossPoint devices
  • Panel-sized PDF output for Kindle, Sony DPT, and other readers
  • Drag and drop ebooks, PDFs, or whole folders to convert in a batch
  • Editable device presets, per-book language detection, and CJK romanization for filenames
  • Calibre-powered ebook → PDF conversion, plus a bundled packer for PDF → XTCH