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Productivity · head to head

LibreOffice vs Syncthing

LibreOffice logo

LibreOffice

Productivity

Free and open-source office suite that runs entirely offline

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: LibreOffice real-time collaborative editing is far behind Microsoft 365 and Google Workspace, and for teams who co-edit this alone usually decides the question; Syncthing synchronisation, not backup: a deletion propagates to every device, and versioning must be configured deliberately
  • They diverge on capability: LibreOffice covers Full suite, Syncthing covers Peer-to-peer sync.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which LibreOffice and Syncthing actually diverge.

Attributes where LibreOffice and Syncthing differ
AttributeLibreOfficeSyncthing
PlatformsWindows, macOS, LinuxWindows, macOS, Linux, Android, Docker
CategoryProductivityUtilities

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 LibreOffice

  • Full suite
  • Works offline
  • OpenDocument native
  • Microsoft format support
  • No telemetry or AI
  • Extensions and macros

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.

LibreOffice

  • Organisations where documents cannot leave the premises for policy or statutory reasonsnot Syncthing
  • Replacing per-seat office licences at scalenot Syncthing
  • Long-term archives needing a format not defined by a single vendornot Syncthing
  • Reviving older hardware that current commercial suites strainnot Syncthing

Syncthing

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

Where each one falls short

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

LibreOffice

  • Real-time collaborative editing is far behind Microsoft 365 and Google Workspace, and for teams who co-edit this alone usually decides the question
  • Mobile support is weak, which is disqualifying for a workforce that reviews documents on phones
  • Complex Microsoft Office documents still lose formatting in transit, so exchange-heavy workflows need testing with real files
  • Central policy management, conditional access and audit tooling are thin against the commercial suites
  • Advanced spreadsheet work is where the gap with Excel is widest, and it affects exactly the users least willing to change

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

LibreOffice

Free
  • LibreOfficeFree
    • Full suite
    • Commercial use permitted
    • No per-seat licence

Syncthing

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

Which should you pick?

Choose LibreOffice if

  • You need full suite.
  • You want to start without paying.
  • You work on Windows, macOS, Linux.
  • You also want works offline.
LibreOffice 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 LibreOffice or Syncthing better?
Neither clearly leads. LibreOffice 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, LibreOffice or Syncthing?
LibreOffice starts at Free and Syncthing at Free.
Does LibreOffice or Syncthing run on more platforms?
LibreOffice runs on Windows, macOS, Linux. Syncthing runs on Windows, macOS, Linux, Android, Docker.
Can I use LibreOffice for free?
Both have a free tier, so you can try either at no cost before committing.
What is LibreOffice best used for?
LibreOffice is most often used for organisations where documents cannot leave the premises for policy or statutory reasons, replacing per-seat office licences at scale, long-term archives needing a format not defined by a single vendor, reviving older hardware that current commercial suites strain. Of those, organisations where documents cannot leave the premises for policy or statutory reasons and replacing per-seat office licences at scale are not what Syncthing is typically brought in for.
What can LibreOffice do that Syncthing cannot?
LibreOffice covers Full suite, Works offline, OpenDocument native, Microsoft format support. Syncthing covers Peer-to-peer sync, Encrypted transport, File versioning, Selective sync.

Answered from the vendors’ own pages

LibreOffice: Is LibreOffice really free for business use?

Yes. It is open source with no per-seat licence and no restriction on commercial use. The Document Foundation is funded by donations and sponsors.

Syncthing: Is Syncthing free?

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

LibreOffice: Does it have AI features?

No. The 26.8 release states it contains no generative AI, that documents are not transmitted to remote services, and that no component requires network access.

Syncthing: Is Syncthing a backup tool?

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

LibreOffice: Can it open Microsoft Office files?

Yes, and save back to them. Round-tripping complex documents is imperfect between any two suites, so test with your own files before committing to an exchange-heavy workflow.

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.

LibreOffice: Why do governments use it?

Two reasons: no per-seat cost at scale, and OpenDocument is an ISO standard implemented by more than one vendor, which matters for archives that must stay readable after a vendor relationship ends.

LibreOffice: What is the biggest reason not to use it?

Collaborative editing. If several people work on the same document simultaneously, Microsoft 365 and Google Workspace are substantially better and that gap is not closing.

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