Where SpriteDX Will Store Your AI-Generated Assets
SpriteDX is a one-click AI tool for generating animated sprite characters that you can drop into whatever tools you already use. As we build the Web UI, we’ve explored two storage paths for your generated assets.
Option 1 — Cloud Object Storage (Cloudflare R2 / Backblaze B2)
Storing assets in object storage is straightforward and inexpensive. For example, Cloudflare R2 is $0.015 per GB-month—so 100 GB ≈ $1.50/month. Backblaze B2 can be cheaper depending on your egress patterns.
Pros
Cheap, scalable, durable
Easy to add multi-device sync and sharing later
Cons
Requires auth, quotas, and abuse controls from day one
Adds operational surface area (billing, limits, lifecycle policies)
Option 2 — Local Browser Storage (OPFS)
OPFS gives each site a private filesystem. SpriteDX can create/read/update/delete files locally without any server setup.
Pros
Zero setup, zero auth, instant performance
Works offline; great “creator-tool” UX
Cons
Eviction risk under device storage pressure
“Clear browsing data” nukes assets
No cross-device sync out of the box
Safari does not support choosing a real OS folder (File System Access API); Chromium does
We can request persistence with
navigator.storage.persist(). It doesn’t guarantee forever, but it significantly reduces eviction risk.
Our Initial Call
We’re starting OPFS-first for the MVP.
Why
Fastest path to a great single-device creation experience
No login friction; works offline
Minimal ops while we iterate on core generation quality
Mitigations we’ll ship with MVP
Ask for persistent storage (
persist())Monitor quota and warn early (storage meter + “backup recommended”)
Export/Import projects (
.spritedx.zip)On Chromium, offer “Choose project folder” for true on-disk persistence (power-user option)
Then
Add optional cloud sync (R2/B2) for backup and multi-device continuity
If we go desktop (e.g., Tauri), swap to the real file system for guaranteed persistence
When We’d Flip to Cloud-First
You need multi-device access on day one
Real-time collaboration/sharing becomes core
Mobile-heavy workflows where eviction risk is higher
We promise archival/retention guarantees
TL;DR
MVP: OPFS by default (fast, offline), plus export and persistence request, with a Chromium “link folder” option.
Soon after: optional cloud sync for backup and portability.
Future: desktop app → true file system persistence.
