EcoBook
EcoBook
Free learning for every child.
Browse books

Low-bandwidth & Offline

EcoBook is built to work with slow internet and simple phones.

1) Download once
Open a book page, then tap Download PDF. Share the file offline.
2) Share locally
Use Bluetooth, WhatsApp, SD card, or USB to move PDFs between phones.
3) Print-friendly
PDFs are designed to print in black & white with low ink usage.

Offline Packs (ZIP)

For schools and community centers: download a ZIP pack and copy it to other devices.
Download Sample Offline Pack

Technical choices we use

  • SVG logos and thumbnails (very small files)
  • No heavy frameworks; minimal JavaScript
  • Simple CSS, cached assets, and static pages
  • Book PDFs optimized for size and printing