What is OxiCloud?
OxiCloud is a self-hosted cloud platform written in Rust. It provides file storage, calendar sync (CalDAV), contacts sync (CardDAV), and office document editing (WOPI) — all from a single binary.
NextCloud was too slow on a home server. So OxiCloud was built to run on minimal hardware and stay out of the way.
OxiCloud vs NextCloud
| Metric | OxiCloud | NextCloud |
|---|---|---|
| Language | Rust (compiled, zero-cost abstractions) | PHP (interpreted) |
| Docker image | ~40 MB (Alpine, static binary) | ~1 GB+ (Apache + PHP + modules) |
| Idle RAM | ~30–50 MB | ~250–512 MB |
| Cold start | < 1 s | 5–15 s |
| CPU at idle | ~0 % | 1–5 % (cron, background jobs) |
| Min. hardware | 1 vCPU / 512 MB RAM | 2 vCPU / 2 GB RAM |
| File dedup | SHA-256 content-addressable | None |
| Dependencies | Single binary + PostgreSQL | PHP, Apache/Nginx, Redis, Cron, … |
| WebDAV | Built-in (RFC 4918) | Built-in |
| CalDAV / CardDAV | Built-in | Via apps |
| WOPI | Built-in | Via apps |
| OIDC / SSO | Built-in | Via apps |
NextCloud is a mature, feature-rich ecosystem. OxiCloud targets users who prioritise raw performance, simplicity, and low resource usage over plugin breadth.
Key Features
Storage & Files
- Drag-and-drop upload, multi-file, grid & list views
- Chunked uploads (TUS-like, parallel, resumable, MD5 integrity)
- SHA-256 content-addressable file deduplication with ref-counting
- Adaptive compression (zstd / gzip per MIME type)
- Trash bin with soft-delete and auto-purge
- Favourites, recent files, full-text search
- Inline preview for images, PDF, text, audio & video
- On-the-fly thumbnails & transcoding (WebP / AVIF)
Protocols
- WebDAV — RFC 4918, streaming PROPFIND, locking
- CalDAV — calendar sync (Thunderbird, GNOME Calendar, iOS, DAVx⁵)
- CardDAV — contacts sync with vCard support
- WOPI — Collabora Online / OnlyOffice
- REST API — complete JSON API
Security
- JWT + Argon2id password hashing
- OIDC / SSO (Keycloak, Authentik, Authelia, Google, Azure AD)
- Role-based access, per-folder permissions, storage quotas
- Shared links with optional password protection
Infrastructure
- Single binary, ~40 MB Docker image
- Dual DB pool (user queries never starved by background tasks)
- Write-behind caching (moka) for sub-millisecond reads
- LTO-optimised release builds
- 222+ automated tests
Feature Status
| Feature | Status |
|---|---|
| File storage & upload | ✅ Working |
| WebDAV | ✅ Working |
| CalDAV | ✅ Working |
| CardDAV | ✅ Working |
| WOPI / Office editing | ✅ Working |
| OIDC / SSO | ✅ Working |
| Trash / recycle bin | ✅ Working |
| Full-text search | ✅ Working |
| Shared links | ✅ Working |
| Music library & playlists | ✅ Working |
| Photo gallery | ✅ Working |
| Desktop sync client | ❌ Planned |
| Android / iOS app | ❌ Planned |
| E2E encryption | ❌ Planned |