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Entertainment · head to head

mpv vs Syncthing

mpv logo

mpv

Entertainment

Free open source command line video player with no graphical interface, built for scripting and precision

From
Free
Rated
-
Full reviewWebsite
Syncthing logo

Syncthing

Utilities

Continuous file synchronisation between your own devices

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: mpv there is no graphical interface at all by default, so a typical non-technical user will find it unusable without significant setup.; Syncthing synchronisation, not backup: a deletion propagates to every device, and versioning must be configured deliberately
  • They diverge on capability: mpv covers Command line control, Syncthing covers Peer-to-peer sync.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which mpv and Syncthing actually diverge.

Attributes where mpv and Syncthing differ
AttributempvSyncthing
PlatformsMac, Windows, LinuxWindows, macOS, Linux, Android, Docker
CategoryEntertainmentUtilities

Identical on both: starting price (Free), pricing model (Open source, no licence fee), free tier (Yes), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in mpv

  • Command line control
  • Lua and JavaScript scripting
  • Plain text configuration
  • Cross-platform
  • Minimal on-screen overlay
  • Embeddable engine

Only in Syncthing

  • Peer-to-peer sync
  • Encrypted transport
  • File versioning
  • Selective sync

What people use each for

The jobs each tool is most often brought in to do.

mpv

  • A developer who wants to script or automate media playback rather than click through a graphical appnot Syncthing
  • A Linux user who wants a lightweight player without the overhead of a full desktop application shellnot Syncthing
  • Someone embedding video playback into another tool or workflow rather than using it as a standalone appnot Syncthing
  • A power user who prefers editing a text config file over navigating a settings panelnot Syncthing

Syncthing

  • Keeping files in step across personal machines without a cloud accountnot mpv
  • Syncing data that must not sit on a third-party server for policy reasonsnot mpv
  • Replacing a paid cloud storage subscription for sync-only needsnot mpv

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

mpv

  • There is no graphical interface at all by default, so a typical non-technical user will find it unusable without significant setup.
  • It has no library browser, artwork fetching or organised media collection view, unlike IINA or Infuse.
  • There is no Apple TV, iOS or Android version, so it cannot be used for a living room or mobile streaming setup.
  • Configuration is entirely file and flag based, so getting a specific behaviour set up correctly has a real learning curve compared with a settings panel.
  • Because it is a general-purpose engine rather than a consumer product, there is no dedicated support channel beyond community forums and documentation.

Syncthing

  • Synchronisation, not backup: a deletion propagates to every device, and versioning must be configured deliberately
  • Devices must be online simultaneously to sync, so an always-on machine is effectively required
  • Initial setup involves exchanging device IDs and is less approachable than signing into a cloud service
  • No web access to files, since there is no server holding them

Pricing, plan by plan

mpv

Free
  • mpvFree
    • Free and open source under GPL or LGPL depending on build
    • No account, subscription or paid tier
    • Cross-platform, same engine on every OS

Syncthing

Free
  • SyncthingFree
    • Full functionality
    • No usage limits
    • Community support

Which should you pick?

Choose mpv if

  • You need command line control.
  • You want to start without paying.
  • You work on Mac, Windows, Linux.
  • You also want lua and javascript scripting.
mpv review

Choose Syncthing if

  • You need peer-to-peer sync.
  • You want to start without paying.
  • You work on Windows, macOS, Linux, Android, Docker.
  • You also want encrypted transport.
Syncthing review

Questions people ask

Is mpv or Syncthing better?
Neither clearly leads. mpv starts at Free and Syncthing at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, mpv or Syncthing?
mpv starts at Free and Syncthing at Free.
Does mpv or Syncthing run on more platforms?
mpv runs on Mac, Windows, Linux. Syncthing runs on Windows, macOS, Linux, Android, Docker.
Can I use mpv for free?
Both have a free tier, so you can try either at no cost before committing.
What is mpv best used for?
mpv is most often used for a developer who wants to script or automate media playback rather than click through a graphical app, a linux user who wants a lightweight player without the overhead of a full desktop application shell, someone embedding video playback into another tool or workflow rather than using it as a standalone app, a power user who prefers editing a text config file over navigating a settings panel. Of those, a developer who wants to script or automate media playback rather than click through a graphical app and a linux user who wants a lightweight player without the overhead of a full desktop application shell are not what Syncthing is typically brought in for.
What can mpv do that Syncthing cannot?
mpv covers Command line control, Lua and JavaScript scripting, Plain text configuration, Cross-platform. Syncthing covers Peer-to-peer sync, Encrypted transport, File versioning, Selective sync.

Answered from the vendors’ own pages

mpv: Is mpv free?

Yes, entirely, and it is open source with no paid tier of any kind.

Syncthing: Is Syncthing free?

Yes, open source with no licence fee and no storage costs, because there is no server.

mpv: Does mpv have a GUI?

Not by default. It shows the video and a minimal overlay, but there are no menus, library or settings panel; IINA is the graphical Mac interface built on the same engine.

Syncthing: Is Syncthing a backup tool?

No. It synchronises, so deletions propagate. Use it alongside a real backup, not instead of one.

mpv: Can mpv play from network shares or cloud storage?

It can play many stream types via command line arguments, but it has no built in browsable network or cloud library the way Infuse does.

Syncthing: Do my files pass through anyone else’s servers?

No. Transfers are peer to peer and encrypted. Discovery and relay servers can help devices find each other, and relayed traffic remains encrypted end to end.

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