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Where your data lives

Last updated August 18, 2026 · 4 min read

Where does what you write in Slima actually live? This page walks through the four storage layers — so you know the full path from keystroke to cloud.

Account → Preferences (English shown): the Display card holds a Font Size slider and the Tutorial Center — there are no local-cache controls here

Four storage layers

Layer Where What
Cloud database Slima's primary database (PostgreSQL) Chapter text, file structure, version history, AI conversations, account
Object storage Slima-managed object storage Cover images, embedded media in chapters (images, PDFs)
Frontend IndexedDB Your browser, locally Local cache; buffers pending changes when offline
Desktop local files 🚧 Electron app folder (once Desktop ships) Desktop's independent cache, encrypted token

A paragraph's journey from keystroke to cloud

You type
  ↓
IndexedDB local cache (instant write)
  ↓
Background buffer + push to cloud DB
  ↓
Cloud confirms receipt
  ↓
IndexedDB marks "synced"

Other devices pull the other way:

Device opens the book
  ↓
Fetch latest content from cloud DB
  ↓
Write into that device's IndexedDB
  ↓
Render in the editor

Media (images / covers / PDFs) — separate path

Media is stored separately from text:

  1. You drag an image into Slima
  2. The image uploads to object storage (not the cloud DB)
  3. The cloud DB only records the file's URL
  4. Other devices: IndexedDB cache + direct fetch from object storage when viewing

This split exists because a text database isn't great for large binary files — images and PDFs go to dedicated object storage for efficiency.

Desktop extra local storage (🚧 in development)

Once the Electron desktop app ships, it'll have its own app folder:

OS Path
macOS ~/Library/Application Support/Slima/
Windows %APPDATA%\Slima\
Linux ~/.config/Slima/

It contains:

  • Token (OS-encrypted)
  • Local cache
  • Preferences

Deleting this folder = the desktop app resets to fresh-install state. Your cloud data is untouched — just sign in again.

Regions / multi-region

For where data is stored and the data-residency policy, see the Slima Privacy Policy.

Related

Try it in Slima

Open the app and do this with your own book. Free to start, no credit card.

Open Slima
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