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5 Best Open-Source Alternatives to Dropbox (2026)

Last checked October 2026 · 17 alternatives to Dropbox in our catalog

Dropbox paid plans start at $9.99/mo, which is why people look for an open-source alternative. Below are 5 open-source options you can inspect, modify and often self-host - 4 are completely free, 2 run on Linux and 2 work in the browser.

Quick picks

Picked from listing data (price model, license, platforms, community votes), not hands-on testing.

Dropbox alternatives compared

AlternativePriceOpen sourcePlatformsWhat it is
NextcloudFreeYes (AGPL-3.0)WebSafe home for all your data
SyncthingFreeYesWindows, Mac, LinuxOpen-source continuous file sync between your own devices with no central server or cloud middleman.
dashbeamFreeYes (AGPL-3.0)WebSend files and folders anywhere without cloud storage
FilesFreeYes (MIT)WindowsA modern, open‑source file manager for Windows with tabs, dual‑pane and cloud support
spacedrivePaid (One-time)Yes (Other)Windows, Mac, LinuxOne searchable library for all your drives, disks, and cloud files.
1
Nextcloud

Nextcloud

FreeOpen source · AGPL-3.0Web

Safe home for all your data

  • Highly customizable and extensible
  • Self-hosted for maximum security and control
  • Open-source and community-driven
  • Requires technical expertise to set up and manage
  • Limited support for certain file types
2
Syncthing

Syncthing

FreeOpen sourceWindowsMacLinux

Open-source continuous file sync between your own devices with no central server or cloud middleman.

  • Fully free and open source with no account or subscription required
  • No central server means files aren't exposed to a third-party cloud provider
  • Runs on a wide range of operating systems including BSD variants
  • No official mobile client maintained by the core team
  • Requires each device to be online for sync, unlike a persistent cloud server
3
dashbeam

dashbeam

FreeOpen source · AGPL-3.0Web

Send files and folders anywhere without cloud storage

  • Secure and private file transfer
  • No need for cloud storage or accounts
  • Supports large file transfer
  • Limited features compared to cloud-based file sharing services
  • No built-in collaboration tools
4
Files

Files

FreeOpen source · MITWindows

A modern, open‑source file manager for Windows with tabs, dual‑pane and cloud support

  • Free and open‑source
  • Highly customizable UI
  • Native Windows performance
  • Windows‑only, no macOS or Linux version
  • Limited mobile presence compared to desktop features
5
spacedrive

spacedrive

Paid (One-time)Open source · OtherWindowsMacLinux

One searchable library for all your drives, disks, and cloud files.

  • Runs completely offline, preserving privacy.
  • Unified view of disparate storage locations.
  • High performance thanks to Rust implementation.
  • No hosted web or mobile version.
  • Initial indexing can be resource‑intensive on large libraries.

Frequently asked questions

What is the best free alternative to Dropbox?

Nextcloud is the first free alternative we list for Dropbox and has no paid tier. Others worth a look: Syncthing, dashbeam and Files. Which one fits depends on what you use Dropbox for, so check the platform and free-plan details for each.

Is there an open-source alternative to Dropbox?

Yes: Nextcloud, Syncthing, dashbeam, Files and spacedrive. Open-source options can usually be inspected, modified and self-hosted.

Does Dropbox have a free plan?

Yes. The free plan includes File sync across devices, Basic sharing links and 30-day file recovery. Paid plans start at $9.99/mo.

How this list is built: alternatives come from our catalog's curated alternative relationships; price model, license and platforms come from each product's listing; order is fully-free first, then community votes.