BenchRank
#27 in Storage & CDNUpdated 2026-08

Syncthing

by Syncthing · Continuous file synchronisation between your own devices

BenchRank score

39.9 — BenchRank score out of 100

Screenshots of Syncthing

Homepage · Syncthing

Homepage of Syncthing

Overview

Syncthing is a continuous file synchronisation program that keeps files in sync between two or more computers in real time. Devices connect directly to each other rather than through a central server, each identified by a cryptographic certificate and ID, and traffic is secured by TLS with perfect forward secrecy. It is configured and monitored through a browser interface.

Best for
Individuals and teams syncing files between their own devices with no central server.
Pricing
No prices are shown in the captured text; the site offers downloads, asks for donations, and notes that Kastelo provides commercial support.
Runs on
Android

Strengths and trade-offs

Strengths

  • No central server; data stays on your own computers
  • TLS with perfect forward secrecy, per-device certificates
  • Runs on macOS, Windows, Linux, FreeBSD, Solaris and OpenBSD
  • Open protocol, open source on GitHub, public bug tracking

Trade-offs

  • Each device must be added by ID, so setup is per-device
  • No central copy: lose every device and you lose the data
  • Direct connections rely on UPnP or manual port forwarding
  • Commercial support comes from a third party, Kastelo

How Syncthing markets itself

A structured read of the promise, proof and page design on Syncthing’s captured homepage.

Homepage capture

“Syncthing is a continuous file synchronization program.”

  • Angle: Open source / ownership
  • Hero: Abstract graphic

Pricing

Published plans and prices from Syncthing’s own pricing page.

How this score is made up

Each dimension is scored out of 100 and combined into the headline score using fixed weights.

  • MCP support

    Whether an agent can drive the product through the Model Context Protocol, and how much setup that takes.

  • API quality

    Public API surface: machine-readable spec, official SDKs, documented auth, errors, rate limits and versioning.

  • Documentation

    Publicly reachable docs — coverage, freshness, code samples and machine readability.

  • Agent friendliness

    How readable the site is to an automated client: llms.txt, structured data, server-rendered content, crawler access.

  • Customer sentiment

    Third-party ratings, shrunk toward the catalogue mean by review volume and corroborated across independent sources.

  • Changelog

    A public, dated record of what shipped and when — the clearest signal that a product is still alive.

  • Marketing site structure

    Whether the site answers a buyer's questions: clear positioning, the pages that matter, and accessibility.

  • Page speed

    How fast the site loads for real visitors: Chrome UX Report 75th-percentile LCP, INP and CLS, with a Lighthouse mobile run standing in where a site has too little traffic for field data.

  • Operational trust

    Status page and incident history, security disclosure, compliance and data-processing documentation.

Measured, but not part of the score

Useful to know, but not a mark for or against the product — so these do not affect the ranking.

  • Openness

    Source availability, self-hosting, data export and open standards. Scored and shown, but not part of the composite — paid SaaS is not worse for being paid SaaS.

  • Maintenance

    Release cadence and repository activity. Scored and shown, but not part of the composite — it is only measurable for open repositories.

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Where this comes from

The Syncthing pages BenchRank reads when it scores the product — its documentation, release notes, status and security pages, and its repository where there is one.

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