# ttu-ttu/ebook-reader

Online e-book reader that supports Yomichan

Repository: https://github.com/ttu-ttu/ebook-reader
Canonical: https://ross.abutalabs.com/products/ebook-reader
Homepage: https://reader.ttsu.app
Language: Svelte
License: BSD-3-Clause
License Family: permissive
Last push: 2026-08-31T21:16:18+00:00

## Health v2 (maintenance only)
Score: 68/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 100, release rhythm 8, longevity 100
- inputs: {"age_days": 1898, "days_push": 2, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1025, forks 107 (observed 2026-09-01T02:14:08.139848+00:00)

## What it is
An online e-book reader for EPUB, HTMLZ, and plain text files, built with Svelte, designed primarily for Japanese language learners with support for dictionary extensions like Yomitan. It offers customizable reading modes, reading statistics, and offline capabilities, and is currently in maintenance-only mode.

## Use cases
- read epub books in the browser with yomitan dictionary lookups
- track japanese reading goals and character counts
- read japanese novels vertically with furigana support
- self-host an ebook reader with offline support
- import and manage a personal ebook library online
- read htmlz and plain text books with bookmarks and auto-scroll

## When to choose
- you are a Japanese learner who wants pop-up dictionary integration while reading
- you need a browser-based reader with vertical text and furigana support
- you want a self-hostable, offline-capable reader with reading statistics

## When to avoid
- you need an actively developed project with timely bug fixes
- you primarily read non-Japanese books and rely on features like character counting
- you need DRM-protected ebook support

## Facets
- artifact type: application
- maturity: maintenance
- function: parser, file-upload, internationalization
- domain: education, web-development, developer-tools
- platform: browser, cross-platform
- tags: ebook-reader, epub, japanese-learning, yomitan, svelte, pwa, reading-tracker, web-server

## Member repositories
- ttu-ttu/ebook-reader (main) score 68

## Provenance
- Observed fields: from GitHub, fetched 2026-09-01T02:14:08.139848+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:08:39.995360+00:00, confidence not recorded.
  - readme: https://github.com/ttu-ttu/ebook-reader (fetched 2026-09-01T02:14:08.139848+00:00, sha 56eba41914a0)
  - homepage: https://reader.ttsu.app (fetched 2026-08-29T13:08:52.022437+00:00, sha 9d745a9e4fcc)
- Data as of 2026-08-30T08:39:29.467469+00:00.