# 8 Best Open Source Alternatives for Resilio Sync

Canonical: https://caniforkit.com/resilio-sync
Last updated: 2026-11-07

Looking for the best open source alternative for Resilio Sync? Compare 8 verified free and open source alternatives to Resilio Sync (Nextcloud, Seafile, OpenCloud) with license details, self-hosting requirements, and practical trade-offs.

## Resilio Sync Overview & Subscription Cost
- **Product**: Resilio Sync
- **Category**: [cloud storage](https://caniforkit.com/category/cloud-storage)
- **Paid Subscription Price**: $25/month per seat
- **1-Seat Annualized Cost**: $300/year
- **5-Person Team Annualized Cost**: $1,500/year
- **10-Person Team Annualized Cost**: $3,000/year
- **Can I Vibe-Code / Rebuild It Myself?**: NO (use a free alternative, save the tokens)
- **Rebuild Verdict**: Instead of paying recurring SaaS fees for Resilio Sync or rebuilding it from scratch, deploy one of the 8 battle-tested open-source alternatives like Nextcloud.

## Verified Free & Open Source Alternatives

| Alternative | Type | License | Runs On | GitHub Stars | Head-to-Head |
| --- | --- | --- | --- | --- | --- |
| [Nextcloud](https://caniforkit.com/fork/nextcloud) | Open Source | AGPL-3.0+ | Self-host | ★ 37.4k | [Compare vs Resilio Sync](https://caniforkit.com/vs/resilio-sync-vs-nextcloud) |
| [Seafile](https://caniforkit.com/fork/seafile) | Open Source | Open Source | Self-host | ★ 15.4k | [Compare vs Resilio Sync](https://caniforkit.com/vs/resilio-sync-vs-seafile) |
| [OpenCloud](https://caniforkit.com/fork/opencloud) | Open Source | Apache-2.0 | Self-host | ★ 6.3k | [Compare vs Resilio Sync](https://caniforkit.com/vs/resilio-sync-vs-opencloud) |
| [Sync-in](https://caniforkit.com/fork/sync-in) | Open Source | Open Source | Self-host | ★ 2k | [Compare vs Resilio Sync](https://caniforkit.com/vs/resilio-sync-vs-sync-in) |
| [Peergos](https://caniforkit.com/fork/peergos) | Open Source | Open Source | Local | ★ 2.6k | [Compare vs Resilio Sync](https://caniforkit.com/vs/resilio-sync-vs-peergos) |
| [ownCloud](https://caniforkit.com/fork/owncloud) | Open Source | AGPL-3.0 | Self-host | ★ 2.2k | [Compare vs Resilio Sync](https://caniforkit.com/vs/resilio-sync-vs-owncloud) |
| [Cozy](https://caniforkit.com/fork/cozy) | Open Source | Open Source | Self-host | ★ 1.3k | [Compare vs Resilio Sync](https://caniforkit.com/vs/resilio-sync-vs-cozy) |
| [Twake Drive](https://caniforkit.com/fork/twake-drive) | Open Source | Open Source | Local | ★ 991 | [Compare vs Resilio Sync](https://caniforkit.com/vs/resilio-sync-vs-twake-drive) |

## In-Depth Alternative Profiles

### Nextcloud
- **Fork Page**: [Nextcloud Profile](https://caniforkit.com/fork/nextcloud)
- **Head-to-Head Comparison**: [Resilio Sync vs Nextcloud](https://caniforkit.com/vs/resilio-sync-vs-nextcloud)
- **Official Website**: https://nextcloud.com
- **Source Code Repository**: https://github.com/nextcloud/server
- **License**: AGPL-3.0+
- **Runs On**: Self-host
- **GitHub Stars**: 37.4k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: desktop, mobile, web, self-hosted, self-host, real ops
- **Summary**: Nextcloud offers on-premises file sync, sharing and collaboration platform with advanced security and privacy features.
- **The Catch vs Resilio Sync**: It can sync the folder, but it is not Obsidian-aware, does not provide the same conflict handling and version recovery by default, and makes you operate the cloud service.
- **Installation**: Nextcloud All-in-One Docker stack or a supported web-server/PHP/database installation, plus sync clients
- **Setup**: A practical deployment needs an always-on host, Docker or a full PHP/database stack, domain and TLS, storage planning, backups, and upgrades
- **Data Storage**: User files in a server data directory or object store; accounts, shares, file cache, versions, and other metadata in the database, with optional local synced copies

### Seafile
- **Fork Page**: [Seafile Profile](https://caniforkit.com/fork/seafile)
- **Head-to-Head Comparison**: [Resilio Sync vs Seafile](https://caniforkit.com/vs/resilio-sync-vs-seafile)
- **Official Website**: https://seafile.com
- **Source Code Repository**: https://github.com/haiwen/seafile
- **License**: Open Source
- **Runs On**: Self-host
- **GitHub Stars**: 15.4k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Open source file sync and sharing platform with custom properties, AI automation, collaborative editing, and enterprise-grade security for teams.
- **The Catch vs Resilio Sync**: Requires self-hosting setup, updates, and server maintenance compared to managed Resilio Sync.
- **Installation**: Clone https://github.com/haiwen/seafile or deploy with Docker Compose
- **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables.
- **Data Storage**: All application data and configuration live on your own server or local database.

### OpenCloud
- **Fork Page**: [OpenCloud Profile](https://caniforkit.com/fork/opencloud)
- **Head-to-Head Comparison**: [Resilio Sync vs OpenCloud](https://caniforkit.com/vs/resilio-sync-vs-opencloud)
- **Official Website**: https://opencloud.eu/
- **Source Code Repository**: https://github.com/opencloud-eu/opencloud
- **License**: Apache-2.0
- **Runs On**: Self-host
- **GitHub Stars**: 6.3k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: desktop, mobile, web, self-hosted, docker to self-host
- **Summary**: Self-hostable cloud file management and collaboration platform with an integrated office suite, zero-trust security, and GDPR compliance for teams and organizations.
- **The Catch vs Resilio Sync**: Its integration ecosystem and administration are younger and thinner than Box's, while all server operations become the user's job.
- **Installation**: Use the documented Docker Compose and Traefik stack; a single-binary deployment is also possible
- **Setup**: Docker, a domain and open ports, reverse-proxy and TLS configuration, and operational responsibility for the storage directory
- **Data Storage**: The base deployment stores file data and metadata in its configured POSIX instance directory; an optional decomposed backend stores blobs in S3 and metadata on POSIX storage

### Sync-in
- **Fork Page**: [Sync-in Profile](https://caniforkit.com/fork/sync-in)
- **Head-to-Head Comparison**: [Resilio Sync vs Sync-in](https://caniforkit.com/vs/resilio-sync-vs-sync-in)
- **Official Website**: https://sync-in.com
- **Source Code Repository**: https://github.com/sync-in/server
- **License**: Open Source
- **Runs On**: Self-host
- **GitHub Stars**: 2k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Secure, open-source platform for file storage, sharing, and collaboration. Host your data on your own infrastructure with full control and transparency.
- **The Catch vs Resilio Sync**: Requires self-hosting setup, updates, and server maintenance compared to managed Resilio Sync.
- **Installation**: Clone https://github.com/sync-in/server or deploy with Docker Compose
- **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables.
- **Data Storage**: All application data and configuration live on your own server or local database.

### Peergos
- **Fork Page**: [Peergos Profile](https://caniforkit.com/fork/peergos)
- **Head-to-Head Comparison**: [Resilio Sync vs Peergos](https://caniforkit.com/vs/resilio-sync-vs-peergos)
- **Official Website**: https://peergos.org
- **Source Code Repository**: https://github.com/Peergos/Peergos
- **License**: Open Source
- **Runs On**: Local
- **GitHub Stars**: 2.6k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: desktop, cross-platform, one-click install
- **Summary**: A peer-to-peer encrypted filesystem for secure file storage, sharing, and collaboration with end-to-end encryption and user-controlled data.
- **The Catch vs Resilio Sync**: Community-driven open source project without dedicated enterprise SLAs.
- **Installation**: Clone https://github.com/Peergos/Peergos or deploy with Docker Compose
- **Setup**: Download the native package or installer for your operating system.
- **Data Storage**: All application data lives locally on your own machine.

### ownCloud
- **Fork Page**: [ownCloud Profile](https://caniforkit.com/fork/owncloud)
- **Head-to-Head Comparison**: [Resilio Sync vs ownCloud](https://caniforkit.com/vs/resilio-sync-vs-owncloud)
- **Official Website**: https://owncloud.com/
- **Source Code Repository**: https://github.com/owncloud/ocis
- **License**: AGPL-3.0
- **Runs On**: Self-host
- **GitHub Stars**: 2.2k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Self-hostable file platform for enterprises needing data sovereignty, real-time document collaboration, and compliance with GDPR, HIPAA, and other regulations.
- **The Catch vs Resilio Sync**: Requires self-hosting setup, updates, and server maintenance compared to managed Google Drive.
- **Installation**: Clone https://github.com/owncloud/core or deploy with Docker Compose
- **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables.
- **Data Storage**: All application data and configuration live on your own server or local database.

### Cozy
- **Fork Page**: [Cozy Profile](https://caniforkit.com/fork/cozy)
- **Head-to-Head Comparison**: [Resilio Sync vs Cozy](https://caniforkit.com/vs/resilio-sync-vs-cozy)
- **Official Website**: https://cozy.io/en
- **Source Code Repository**: https://github.com/cozy/cozy-stack
- **License**: Open Source
- **Runs On**: Self-host
- **GitHub Stars**: 1.3k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Open-source personal cloud that automatically gathers all your data from third-party services. French-hosted with privacy-first design, no ads, and seamless device sync.
- **The Catch vs Resilio Sync**: Requires self-hosting setup, updates, and server maintenance compared to managed Resilio Sync.
- **Installation**: Clone https://github.com/cozy/cozy-stack or deploy with Docker Compose
- **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables.
- **Data Storage**: All application data and configuration live on your own server or local database.

### Twake Drive
- **Fork Page**: [Twake Drive Profile](https://caniforkit.com/fork/twake-drive)
- **Head-to-Head Comparison**: [Resilio Sync vs Twake Drive](https://caniforkit.com/vs/resilio-sync-vs-twake-drive)
- **Official Website**: https://twake-drive.com
- **Source Code Repository**: https://github.com/linagora/twake-drive
- **License**: Open Source
- **Runs On**: Local
- **GitHub Stars**: 991
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: desktop, cross-platform, one-click install
- **Summary**: Open source encrypted data storage solution offering secure file sharing, collaboration tools, and on-premises deployment for professional teams.
- **The Catch vs Resilio Sync**: Community-driven open source project without dedicated enterprise SLAs.
- **Installation**: Clone https://github.com/linagora/twake-drive or deploy with Docker Compose
- **Setup**: Download the native package or installer for your operating system.
- **Data Storage**: All application data lives locally on your own machine.

## Frequently Asked Questions

### What is the best free alternative to Resilio Sync?
The top free alternative to Resilio Sync is Nextcloud (open source, AGPL-3.0+). Nextcloud offers on-premises file sync, sharing and collaboration platform with advanced security and privacy features. Other popular Resilio Sync replacements include Seafile, OpenCloud, Sync-in.

### How much does switching from Resilio Sync to a free alternative save?
Resilio Sync starts at $25/month per seat ($300/year). Switching a 5-person team to a free alternative like Nextcloud saves $1,500 per year in software subscription fees.

### What is the catch when switching away from Resilio Sync?
While Nextcloud replaces core Resilio Sync features without subscription fees, the real-world trade-off is: It can sync the folder, but it is not Obsidian-aware, does not provide the same conflict handling and version recovery by default, and makes you operate the cloud service.

## Related

- [cloud storage Software Category Hub](https://caniforkit.com/category/cloud-storage)
- [All Paid SaaS Alternatives Index](https://caniforkit.com/alternatives)
- [Self-Hosted Software Directory](https://caniforkit.com/self-hosted)
- [Homepage](https://caniforkit.com)