Self-hosted cloud storage, calendar & contacts — blazingly fast.
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NextCloud was too slow on my home server. So I built OxiCloud — a complete cloud platform written in Rust that runs on minimal hardware and stays out of your 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 (recommended) |
| **Concurrent uploads** | Parallel chunked (TUS-like), async I/O | Sequential PHP workers |
| **File dedup** | SHA-256 content-addressable, ref-counting | None (each user = full copy) |
| **DB connections** | Dual pool (user + maintenance) | Single pool, background jobs compete |
| **LTO + PGO** | Fat LTO, codegen-units=1, opt-level=3 | N/A (interpreted) |
| **Dependencies** | Single binary + PostgreSQL | PHP, Apache/Nginx, Redis, Cron, … |
| **WebDAV** | Built-in (RFC 4918, PROPFIND streaming) | Built-in |
| **CalDAV / CardDAV** | Built-in | Via apps |
| **WOPI (Office editing)** | Built-in (Collabora / OnlyOffice) | Via apps |
| **OIDC / SSO** | Built-in (Keycloak, Authentik, …) | Via apps |
> **Note:** NextCloud is a mature, feature-rich ecosystem. OxiCloud targets users who prioritise raw performance, simplicity, and low resource usage over plugin breadth.
---
## Features
### Storage & Files
- **Upload / download / organise** — drag-and-drop, multi-file, grid & list views
- **Chunked uploads** — TUS-like protocol, parallel chunks, resumable, MD5 integrity
- **File deduplication** — SHA-256 content-addressable blobs with automatic ref-counting
- **Adaptive compression** — zstd / gzip selected per MIME type
- **Trash bin** — soft-delete, restore, auto-purge by retention policy
- **Favourites & recent files**
- **Full-text search** — by name, type, date range, size, recursive subtree (ltree)
- **MIME magic-byte detection** — `infer` crate, not just extension guessing
- **Inline preview** — images, PDF, text, audio & video player modal
- **Thumbnails & transcoding** — WebP / AVIF on-the-fly via `image` crate
### Protocols
- **WebDAV** — RFC 4918, streaming PROPFIND, locking, compatible with all major clients
- **CalDAV** — calendar sync (Thunderbird, GNOME Calendar, iOS, DAVx⁵, …)
- **CardDAV** — contacts sync with vCard support
- **WOPI** — edit Office docs in Collabora Online or OnlyOffice
- **REST API** — complete JSON API for all operations
### Security & Auth
- **JWT authentication** with refresh tokens
- **Argon2id** password hashing
- **OIDC / SSO** — Keycloak, Authentik, Authelia, Google, Azure AD…
- **Role-based access** — admin / user, per-folder permissions
- **Storage quotas** per user
- **Shared links** with optional password protection
### Infrastructure
- **Single binary** — no runtime, no interpreter, no framework overhead
- **~40 MB Docker image** (Alpine)
- **Dual DB pool** — dedicated maintenance pool so background tasks never starve user queries
- **LTO-optimised release** — fat LTO, 1 codegen-unit, `opt-level = 3`, stripped
- **Write-behind caching** (moka) — sub-millisecond hot reads
- **112 automated tests** — `cargo test` on every push (CI)
- **9 languages** — EN, ES, DE, FR, IT, PT, NL, ZH, FA
---
## Quick Start
### Docker (recommended)
```bash
git clone https://github.com/DioCrafts/oxicloud.git
cd oxicloud
# Copy and optionally edit environment
cp example.env .env
docker compose up -d
```
Open **http://localhost:8086**. That's it.
### From source
Requires **Rust 1.93+** and **PostgreSQL 13+**.
```bash
git clone https://github.com/DioCrafts/oxicloud.git
cd oxicloud
# Configure database
echo "DATABASE_URL=postgres://user:pass@localhost/oxicloud" > .env
# Build optimised binary
cargo build --release
# Start the server (migrations run automatically)
cargo run --release
```
---
## Client Setup
OxiCloud speaks standard protocols — any WebDAV / CalDAV / CardDAV client works:
| Client | Protocol | URL |
|--------|----------|-----|
| Windows Explorer | WebDAV | `http://host:8086/webdav/` |
| macOS Finder | WebDAV | `http://host:8086/webdav/` |
| Nautilus / Dolphin | WebDAV | `dav://host:8086/webdav/` |
| Thunderbird (calendar) | CalDAV | `http://host:8086/caldav/` |
| Thunderbird (contacts) | CardDAV | `http://host:8086/carddav/` |
| DAVx⁵ (Android) | CalDAV + CardDAV | `http://host:8086/` |
| GNOME Calendar | CalDAV | `http://host:8086/caldav/` |
| GNOME Contacts | CardDAV | `http://host:8086/carddav/` |
| Collabora / OnlyOffice | WOPI | See [WOPI docs](doc/wopi-integration.md) |
For detailed setup guides: [WebDAV](doc/webdav-integration-guide.md) · [CalDAV](doc/caldav-technical-spec.md) · [CardDAV](doc/carddav-technical-spec.md) · [OIDC/SSO](doc/oidc-integration.md)
---
## Architecture
Clean / Hexagonal architecture — each layer depends only on the one below:
```
┌───────────────────────────────────────────────────────────────┐
│ Interfaces │ REST API, WebDAV, CalDAV, CardDAV, WOPI │
├───────────────────────────────────────────────────────────────┤
│ Application │ Use cases, DTOs, port definitions │
├───────────────────────────────────────────────────────────────┤
│ Domain │ Entities, business rules, repository traits │
├───────────────────────────────────────────────────────────────┤
│ Infrastructure│ PostgreSQL, filesystem, caching, auth │
└───────────────────────────────────────────────────────────────┘
```
Swap the database, add a new protocol, or change auth — without touching business logic.
For a deep dive: [Internal Architecture](doc/internal-architecture.md) · [Caching](doc/caching-architecture.md) · [DB Transactions](doc/database-transactions.md)
---
## Configuration
All config via environment variables (see [`example.env`](example.env)):
| Variable | Default | Description |
|----------|---------|-------------|
| `OXICLOUD_STORAGE_PATH` | `./storage` | Root directory for file storage |
| `OXICLOUD_SERVER_PORT` | `8086` | HTTP listen port |
| `OXICLOUD_DB_CONNECTION_STRING` | — | PostgreSQL connection string |
| `OXICLOUD_JWT_SECRET` | random | Token signing key (set in production!) |
| `OXICLOUD_OIDC_ENABLED` | `false` | Enable OpenID Connect SSO |
| `OXICLOUD_WOPI_ENABLED` | `false` | Enable Collabora / OnlyOffice editing |
| `OXICLOUD_ENABLE_AUTH` | `true` | Toggle authentication |
| `OXICLOUD_ENABLE_TRASH` | `true` | Toggle trash / recycle bin |
Full reference: [`example.env`](example.env) · [Deployment guide](doc/deployment.md) · [OIDC examples](doc/oidc-config-examples.md)
---
## Development
```bash
cargo build # Dev build
cargo run # Run locally
cargo test --workspace # 112 tests
cargo clippy -- -D warnings # Lint (zero warnings policy)
cargo fmt --all --check # Format check
RUST_LOG=debug cargo run # Debug logging
```
### Project stats
| Metric | Value |
|--------|-------|
| Rust source files | 170 |
| Lines of code | ~50 000 |
| Automated tests | 112 |
| Documentation pages | 35 |
---
## Documentation
Extensive docs live in [`doc/`](doc/):
| Topic | Link |
|-------|------|
| Deployment & Docker | [deployment.md](doc/deployment.md) |
| WebDAV integration | [webdav-integration-guide.md](doc/webdav-integration-guide.md) |
| CalDAV / CardDAV | [caldav-technical-spec.md](doc/caldav-technical-spec.md) · [carddav-technical-spec.md](doc/carddav-technical-spec.md) |
| OIDC / SSO setup | [oidc-integration.md](doc/oidc-integration.md) · [oidc-config-examples.md](doc/oidc-config-examples.md) |
| WOPI (Office editing) | [wopi-integration.md](doc/wopi-integration.md) |
| Chunked uploads | [chunked-uploads.md](doc/chunked-uploads.md) |
| Deduplication | [deduplication.md](doc/deduplication.md) |
| Search | [search.md](doc/search.md) |
| Caching architecture | [caching-architecture.md](doc/caching-architecture.md) |
| Storage quotas | [storage-quotas.md](doc/storage-quotas.md) |
| Trash / recycle bin | [trash-feature-summary.md](doc/trash-feature-summary.md) |
| Internationalisation | [i18n.md](doc/i18n.md) |
| Internal architecture | [internal-architecture.md](doc/internal-architecture.md) |
---
## Roadmap
Check [TODO-LIST.md](TODO-LIST.md) for the full roadmap. Highlights:
- [ ] File versioning & diff viewer
- [ ] End-to-end encryption
- [ ] Desktop sync client (Rust)
- [ ] Android / iOS app
- [ ] OCR & intelligent tagging
- [ ] Automated workflows
---
## Contributing
The project is actively developed. Contributions welcome!
Read [CONTRIBUTING.md](CONTRIBUTING.md) before submitting a PR. Follow the [Code of Conduct](CODE_OF_CONDUCT.md).
## License
MIT — see [LICENSE](LICENSE).
---
## Star History
---
Questions? [Open an issue](https://github.com/DioCrafts/OxiCloud/issues). Want to help? PRs welcome.