Nextcloud vs Seafile
Nextcloud and Seafile compared for self-hosted file sync and share in 2026: hardware requirements, licences, Community vs paid editions, pricing per user, sync clients, encryption, storage backends, office editing, LDAP/SSO, upgrades and where each breaks.
Quick Answer
Nextcloud is an AGPL-licensed PHP platform that started as file sync and grew into a full workspace: Files, Talk, Groupware (calendar, contacts, mail), Office and an app store. It runs on Apache or nginx with PHP 8.5 recommended and MariaDB, MySQL or PostgreSQL. The All-in-One Docker image bundles optional Talk, Collabora-style office, ClamAV, full-text search and BorgBackup. A new major ships every four months with a year of support; the current line is Nextcloud 35 (Hub 26 Summer, 35.0.2 on 15 October 2026). Enterprise subscriptions start at 100 users and cost €71.29, €104.99 or €204.75 per user per year. Seafile is a file sync and share server with an AGPLv3 core written for speed: files sync as libraries split into blocks, with client-side encrypted libraries, a virtual drive client, SeaDoc and wikis. Community Edition runs on 2 cores and 2 GB of RAM in Docker with MariaDB, Redis and Caddy. Professional Edition is free for 3 users, $100 a year for 9, then $48 per user per year, and adds file locking, full-text search, audit logs, antivirus, S3 and clustering. Pick Nextcloud if you want a Google Workspace-style suite on your own server. Pick Seafile if you mainly need fast, reliable file sync for large libraries on modest hardware.
Last updated November 9, 2026. Covers Nextcloud 35.0.2 (Hub 26 Summer) and Seafile 14.0.9/13.0.29, with Nextcloud Enterprise pricing from nextcloud.com/pricing and Seafile Pro pricing from seafile.com/en/pricing, read in November 2026.
| Feature | Nextcloud | Seafile |
|---|---|---|
| License | AGPL-3.0 (server and Enterprise) | Server core AGPLv3, Seahub web UI Apache 2.0, desktop client GPLv2; Professional Edition commercial |
| Self-Hosted Pricing | Free (community); Enterprise from 100 users: Standard €71.29, Premium €104.99, Ultimate €204.75 per user per year | Community free; Pro free for 3 users, $100/yr for 9 users, $48 (€44)/user/yr 10–249, $44 250–499, $40 500–749, $35 750–999; support plan $5,000/yr |
| Hosted / Cloud Option | Free or paid accounts at third-party Nextcloud providers; Enterprise via Nextcloud GmbH and partners | SeafilePlus cloud: Trial free (3 users, 1 GB), Team $8/user/month with 500 GB (expandable) |
| Stack & Databases | PHP (8.5 recommended) on Apache 2.4 or nginx + PHP-FPM; MariaDB, MySQL, PostgreSQL; SQLite for testing; Oracle with Enterprise | Seafile server core + Seahub web UI; MariaDB/MySQL, Redis; Docker stack includes Caddy |
| Minimum Hardware | 128 MB RAM minimum and 512 MB recommended per PHP process; 64-bit strongly recommended | CE: 2 cores, 2 GB RAM, 10 GB disk (50 GB+ recommended); Pro: 4 cores with Elasticsearch, 2 cores with SeaSearch |
| Install Methods | All-in-One Docker image (and AIO VM), Linux archive, Snap and web installer (community), distro guides for Ubuntu, RHEL, Debian, SUSE, Alpine | Docker Compose (CE and Pro), Kubernetes via Helm or resource files, binary packages for Ubuntu 24.04/22.04 and Debian 12/11 |
| Sync Model | File-level sync over WebDAV with versioning and file locking | Library-based sync with files split into versioned blocks (commit, fs and block objects) |
| Desktop & Mobile Clients | Desktop for Windows 10+, macOS 12+ and Linux (AppImage); Android and iOS apps | Sync clients for Windows, macOS, Linux; iOS and Android apps with photo backup |
| Virtual Drive / On-Demand Files | Not compared here (not verified this run) | Yes: SeaDrive virtual drive client (Windows, macOS, Linux) |
| Encryption | Server-side encryption module; end-to-end encrypted folders via the end_to_end_encryption app and desktop/mobile clients | Client-side encrypted libraries (desktop-created for end-to-end); 2FA |
| Storage Backends | Local, NFS, S3/Swift object storage as primary (multibucket), external SMB/WND, SharePoint, (s)FTP | Local filesystem; S3, Ceph and OpenStack Swift backends (S3 listed as Pro in the edition table); multiple backends |
| Office & Document Editing | Nextcloud Office (Collabora Online, Euro-Office), Thinkfree Office, Microsoft Office Online Server integration | SeaDoc built-in editor; OnlyOffice and Collabora Online integration; Office Online Server (Pro) |
| Beyond Files (Chat, Groupware, Wiki) | Talk (chat, video, TURN), calendar, contacts, mail, Whiteboard, Flow automation, Assistant (AI) | Wikis, SeaDoc review workflows, metadata views, AI tagging/summaries (AI extension); no chat or groupware |
| Full-Text Search | Unified search with providers; full-text search app (optional in AIO) | Pro only (Elasticsearch or SeaSearch) |
| LDAP / SSO | LDAP/AD, 2FA, SSO; SAML in Enterprise capabilities | LDAP/AD auth, OAuth, Shibboleth, remote user (CE); LDAP sync, ADFS and SAML 2.0 (Pro) |
| Audit Log, Antivirus, Remote Wipe | Audit-ready logging (Enterprise), ClamAV antivirus app, file access control, ransomware protection | Audit log, antivirus (ClamAV/Kav4fs) and remote wipe in Pro |
| Clustering / HA | Scale-out deployments with external database, Redis and object storage; Enterprise deployment support | Pro cluster: minimum 2 nodes, 3+ recommended (frontend + single backend) |
| Release Cadence & Support | Major every 4 months, 1 year support (5+ years with Premium/Ultimate); monthly maintenance releases | Parallel maintained majors (13.0 and 14.0) with frequent patch releases |
| Latest Version (Nov 2026) | Nextcloud 35.0.2 (Hub 26 Summer, 15 Oct 2026); 35.0.3 scheduled 12 Nov 2026 | Seafile 14.0.9 (Docker image 13 Oct 2026); 13.0.29 (4 Nov 2026) |
Nextcloud
Open-source (AGPL) self-hosted collaboration platform from Nextcloud GmbH. Nextcloud Hub combines Files (sync and share), Talk (chat and video), Groupware (calendar, contacts, mail), Office integrations, an AI assistant and workflow automation, with hundreds of apps in its app store and Enterprise subscriptions for support and long-term maintenance.
Pros
- Far more than file sync: Talk, calendar, contacts, mail, whiteboard, office editing and hundreds of apps on one server
- Fully AGPL open source; Enterprise features like SAML, Windows Network Drive, password policies and audit logging are included from the Standard subscription
- All-in-One Docker image wires up optional Talk high-performance backend, recording server, BorgBackup-based backups, ClamAV, Imaginary previews, full-text search and Whiteboard
- Broad storage support: local, NFS, S3- and Swift-compatible object storage as primary storage (including multibucket), plus external SMB/Windows shares, SharePoint and (s)FTP
- Choice of databases (MariaDB 10.11–12.3, MySQL 8.4/9.7, PostgreSQL 14–18) and a large admin, partner and community ecosystem
- Predictable cadence: a new major every four months, each supported for one year with monthly maintenance releases; 5+ years of maintenance on Premium and Ultimate
Cons
- PHP application with many moving parts (web server, PHP-FPM, database, Redis, cron, optional apps), so tuning and upgrades take more effort than a single-purpose sync server
- Memory use scales with users and apps: Nextcloud asks for 128 MB minimum and recommends 512 MB per PHP process
- Majors are only supported for a year on the free edition, so you need to upgrade at least once a year to stay patched
- Enterprise pricing starts at 100 users (€71.29 per user per year on Standard), with no published small-team tier
- App quality varies, and third-party apps can break across major upgrades
Best For
Teams, families and organizations that want one self-hosted replacement for Google Workspace or Microsoft 365 basics: files plus chat, calendar, contacts, office editing and workflows, with an Enterprise support path.
Seafile
Open-source file sync and share server from Seafile Ltd., built around libraries that store files as versioned blocks for fast, efficient sync. It offers a free Community Edition, a paid Professional Edition (free for up to 3 users) and the SeafilePlus cloud service, with desktop sync and virtual drive clients, mobile apps, SeaDoc documents and wikis.
Pros
- Lean footprint: Community Edition needs 2 CPU cores and 2 GB of RAM, deployed as a Docker stack of Seafile, MariaDB, Redis, SeaDoc and Caddy
- Block-based library storage built for sync speed and large file counts, with version history on every library
- Client-side encrypted libraries: created from the desktop client, the password never reaches the server and admins cannot read file contents
- Virtual drive client maps server storage to Windows, macOS and Linux, downloading files only when opened
- Cheap Professional Edition: free for 3 users, $100 a year for 9 users, then $48 per user per year (half for education)
- SeaDoc block editor, multi-page wikis, metadata views (table, gallery, kanban, map) and OnlyOffice/Collabora integration
Cons
- File locking, fine-grained folder permissions, full-text search, LDAP group sync, audit log, antivirus, remote wipe, S3 and HA are Professional-only
- Files are stored in Seafile's internal block format, not as plain files on disk, so you need Seafile's tools (or FUSE/WebDAV extensions) to reach them outside the app
- Encrypted libraries leave metadata (file names, sizes, history) unencrypted, decrypt on the server when browsed on the web, and mobile apps from 3.0 dropped client-side encryption
- Narrower scope: no built-in chat, calendar, contacts or mail, and a much smaller app ecosystem
- Professional Edition with Elasticsearch wants 4 cores; staying on 2 cores means switching search to SeaSearch or a separate Elasticsearch host
Best For
Teams, agencies and homelabs whose main need is fast, reliable sync of large file libraries on modest hardware, with optional end-to-end encrypted libraries and a low per-user price.
Scope: workspace platform vs focused sync server
These two products solve different-sized problems. Nextcloud markets itself as Nextcloud Hub: Files for sync and share, Talk for chat, calls and video conferencing, Groupware for calendar, contacts and mail, Nextcloud Office (Collabora Online or Euro-Office) and Thinkfree Office for documents, Assistant for local AI, Flow for workflow automation, plus Microsoft integrations for Outlook, SharePoint and Teams. Hundreds of community and partner apps extend it further. If you want one login that covers a small organization's files, meetings and calendars, Nextcloud is the obvious self-hosted candidate. Seafile stays close to files. Its feature list covers cross-platform sync, a virtual drive, mobile photo backup, sharing with granular permissions and protected links, version history, client-side encrypted libraries, and a document layer: the SeaDoc block editor with review workflows, multi-page wikis, metadata views in table, gallery, kanban or map layouts, and an AI extension for tags and summaries. It integrates OnlyOffice and Collabora for Office files but has no chat, calendar or mail. That focus is Seafile's strength, not a gap: fewer components means fewer things to patch and break. Decide first whether you need a suite or a sync engine. That one decision usually picks the product before any benchmark does.
Hardware, stack and operations
Seafile's Community Edition documents a minimum of 2 CPU cores (over 2 GHz recommended), 2 GB of RAM and 10 GB of disk, with 50 GB or more recommended. The standard Docker deployment runs five services: Seafile, MariaDB, Redis, SeaDoc and Caddy for HTTPS. Professional Edition adds Elasticsearch for full-text search and asks for 4 cores. You can stay at 2 cores and 2 GB by switching to SeaSearch, a lightweight engine built on ZincSearch, or by running Elasticsearch on another host. Binary packages target Ubuntu 24.04 and 22.04 and Debian 12 and 11, and there are Helm charts for Kubernetes. Nextcloud's requirements are less of a single number: it needs a minimum of 128 MB of RAM per PHP process and recommends 512 MB, on Apache 2.4 or nginx with PHP-FPM and PHP 8.5 recommended, with MariaDB, MySQL or PostgreSQL. SQLite is only for testing, and Oracle requires an Enterprise subscription. Memory scales with users, apps and activity. The All-in-One Docker image removes most of the assembly by bundling the web server, database, Redis and optional containers for Talk's high-performance backend, recording, BorgBackup-based backups, ClamAV, Imaginary previews, full-text search and Whiteboard. Expect Nextcloud to need more RAM and more tuning than Seafile for the same number of users and files.
Sync engine, storage format and encryption
Seafile organizes data into libraries and stores them as content-addressed objects: its S3 setup asks for separate commit, fs and block buckets, which reflects the internal design. Files are split into blocks and versioned at the library level, which makes sync of large trees and small edits efficient and history cheap. The trade-off is that the data directory isn't a browsable folder of your files; you reach them through Seafile's clients, web UI, WebDAV or the FUSE extension, and you back up the database and object store together. Seafile's encrypted libraries encrypt on the desktop client with a password the server never stores. The manual is candid about the limits: file and folder names, sizes and edit history stay unencrypted, browsing on the web or in the desktop's cloud file explorer decrypts on the server, libraries created on the web pass the password through the server, and the iOS and Android apps dropped client-side encryption from version 3.0. Nextcloud stores files as files on local disk or NFS, or in S3- or Swift-compatible object storage as primary storage, including multibucket setups. It can also mount SMB/Windows shares, SharePoint and (s)FTP as external storage. Encryption comes in two forms: a server-side encryption module, and end-to-end encrypted folders implemented by the desktop and mobile clients through the end_to_end_encryption server app.
Pricing and what the free editions leave out
Both cores are free and open source, but the paywalls fall in different places. Nextcloud's server is AGPL throughout. The Enterprise subscription sells support, hardening, long-term maintenance and some apps rather than a separate codebase. Plans start at 100 users: Standard at €71.29 per user per year (one-year maintenance lifecycle, two-business-day response), Premium at €104.99 (5+ years of maintenance, one business day) and Ultimate at €204.75 (adds Assistant, Flow and Whiteboard, with 1 to 24 hour reaction times). SAML, Windows Network Drive, password policies and audit-ready logging are listed as included in all three. For 100 users that works out to about €7,129 a year on Standard. Seafile's Community Edition lacks file locking, fine-grained folder permissions, full-text search, LDAP group sync, ADFS single sign-on, role-based accounts, remote wipe, audit logs, antivirus scanning, HA and (per the edition table) S3 storage. Professional Edition adds all of them and is free for up to 3 users without a licence file, $100 a year for 9 users, $48 per user per year from 10 to 249 users, falling to $35 at 750 to 999. Education pricing is half, and public institutions get 25% off. For 100 users that is $4,800 a year, though a support plan with remote sessions costs $5,000 a year on top.
Upgrades, release cadence and long-term maintenance
Nextcloud publishes a new major version every four months and supports each one for a year through monthly maintenance releases. In November 2026 three lines are maintained: 33 (Hub 26 Winter, until 17 February 2027), 34 (Hub 26 Spring, until 8 June 2027) and 35 (Hub 26 Summer, released 16 September 2026 and supported until 15 September 2027). The latest maintenance releases are 33.0.10, 34.0.5 and 35.0.2 from 15 October 2026, with the next round due on 12 November. On the free edition you must step through majors one at a time at least yearly, and apps need to keep up with each major. Premium and Ultimate subscribers can stay on one release for 5+ years. Seafile currently maintains two major lines in parallel: 14.0 (Docker image 14.0.9, published 13 October 2026) and 13.0 (13.0.29, 4 November 2026), and the manual carries per-version upgrade notes. Docker upgrades are a matter of changing the image tag and following those notes, and the smaller surface means fewer third-party apps to break. In practice, Seafile upgrades are rarer and smaller events. Nextcloud upgrades are routine, but you need to schedule them, test apps first and keep backups ready.
Verdict
Pick Nextcloud if you want one self-hosted workspace rather than a sync server. Files, chat and video in Talk, calendar, contacts, mail, office editing, whiteboards and workflow automation all live on one AGPL platform with a large app store and an Enterprise support path. Budget for the overhead: a PHP stack with a database, Redis and cron, memory that grows with users and apps, and at least one major upgrade a year on the free edition. The All-in-One Docker image is the easiest way to run it. Pick Seafile if the job is file sync: big libraries, many small files, versioning, a virtual drive and optional client-side encrypted libraries on a 2-core, 2 GB box. It is narrower and stores data in its own block format, and features such as file locking, full-text search, audit logs and S3 storage sit in the Professional Edition. That edition is free for 3 users, $100 a year for 9, and $48 per user per year after that, well below Nextcloud Enterprise's €71.29 starting price, which also has a 100-user minimum. For a homelab or a small team replacing Dropbox, Seafile is the faster, lower-maintenance choice. For an organization replacing Google Workspace or Microsoft 365 basics, Nextcloud is the only one of the two that covers it.