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Koma Vault

Koma Vault

A fast private comic reader for local CBZ, CBR, image-based EPUB, Komga, Kavita, and OPDS libraries.

Rust engine
archive extraction
Local-first
private by design
Remote-ready
Komga, Kavita, OPDS

Download

Coming soon to mobile stores

Official App Store and Google Play badges will appear here once the listings are live. Until then, the site avoids fake store links and private test build links.

What it is

One reader for every shelf

Koma Vault keeps the reading experience consistent whether a book starts on device, on a self-hosted server, or in a catalog feed. The site manual explains the everyday flows without exposing private server names, credentials, or copyrighted comic pages.

Local-first

Built for private libraries

Read CBZ, CBR, and image-based EPUB files with a Rust-native archive engine, local metadata, and reading progress stored on your device.

Remote shelves

Komga, Kavita, and OPDS

Connect your own servers, browse cached catalogs, stream pages where supported, and pause sources without deleting credentials or saved catalogs.

Offline control

Download what matters

The Offline Vault separates explicit downloads from temporary caches, with storage checks, background queue status, and retry paths for failed work.

Screenshots

Real captures across phone, tablet, and desktop

These screens were captured from the running Koma Vault app using generated first-party comic samples. The site avoids private server details and copyrighted pages.

View all screenshots
Koma Vault Local Library with generated demo comicsKoma Vault reader showing a generated demo comic pageKoma Vault Search filtered to generated local demo comics
Captured from appsynthetic demo comics only

Device views

The app belongs on mobile screens

Koma Vault is shown on iPhone, iPad, Android, and macOS so the website reflects the actual native app surfaces people will use.

Koma Vault iPhone library screenshotiPhonePhone library layout
Koma Vault iPad library screenshotiPadTablet sidebar layout
Koma Vault Android home screenshotAndroidAndroid phone layout

Screen animation

Open a comic and start reading

This short capture was recorded from the running Koma Vault app with generated demo comics, including the reader rail and page transition.

Manual

Start fast, then go deeper

The manual is written for people opening the app for the first time: import a book, connect a source, read, search, download, check activity, and understand the privacy model.