Sites like Syncthing

01 · Entity

About Syncthing

Syncthing syncthing.net

Syncthing

Wikidata: open source continuous file synchronization software

Top 10K · #4,215 English 9 technologies Crawled Nov 6, 2026

Visit Syncthing

Summary by Claude

Free, open-source peer-to-peer software that continuously synchronizes files between a user's own devices or with other people, without a central server, using TLS encryption and device certificates.

Who it’s for

Privacy-conscious individuals, technical users and teams

Business model

Donations (nonprofit foundation)

• file synchronization software
• peer-to-peer file sync
• real-time folder synchronization
• self-hosted Dropbox alternative
• encrypted file transfer
• cross-platform sync Windows Linux Android
• LAN file sync
• open source sync protocol

02 · Embedding space

Competitor map

Each alternative by how close its vector is to Syncthing’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Lines split each axis at the median. Hover for the numbers, click to jump to it in the list.

1. 01
   Dropbox dropbox.com Top 1K English

   Dropbox: Secure cloud storage, file sharing, and more

   Discover Dropbox – secure, easy cloud storage for file sharing and collaboration. With Dash, save time and organize all your company content in one place.

   • Microsoft 365
   • Adobe
   • Amazon SES
   • Apple Business
   • Atlassian
   • DocuSign

   0 say Dropbox is a good alternative to Syncthing 0 say Dropbox isn’t a real alternative to Syncthing

   Comment
   Very close cos 0.904
2. 02
   Signal signal.org Top 10K English

   Signal >> Home

   Say "hello" to a different messaging experience. An unexpected focus on privacy, combined with all of the features you expect.

   • jQuery
   • Microsoft 365
   • Atlassian
   • Cloudflare
   • Cloudflare DNS
   • Google Search Console

   0 say Signal is a good alternative to Syncthing 0 say Signal isn’t a real alternative to Syncthing

   Comment
   Close cos 0.891
3. 03
   WeTransfer wetransfer.com Top 10K English

   WeTransfer | Skicka stora filer snabbt

   Det enkla, snabba och säkra sättet att skicka filer till hela världen utan ett konto. Dela filer, foton och videor idag helt gratis.

   • Microsoft 365
   • Adobe
   • Amazon Publisher Services
   • Apple Business
   • Atlassian
   • Amazon CloudFront

   0 say WeTransfer is a good alternative to Syncthing 0 say WeTransfer isn’t a real alternative to Syncthing

   Comment
   Close cos 0.891
4. 04
   Let's Encrypt letsencrypt.org Top 10K English

   Let's Encrypt

   Let's Encrypt is a free, automated, and open Certificate Authority brought to you by the nonprofit Internet Security Research Group (ISRG). Read all about our work in our Annual Report.

   • Font Awesome
   • Cloudflare DNS
   • Google Workspace
   • Netlify
   • Zendesk

   0 say Let's Encrypt is a good alternative to Syncthing 0 say Let's Encrypt isn’t a real alternative to Syncthing

   Comment
   Close cos 0.889
5. 05
   Bitwarden bitwarden.com Top 10K English

   Best Password Manager for Business, Enterprise & Personal | Bitwarden | Bitwarden

   Bitwarden is the trusted, open source password manager for individuals, teams, and enterprises. Securely store, share, and manage passwords, passkeys, and secrets. Free to start.

   • Microsoft 365
   • Amazon SES
   • Atlassian
   • Cloudflare DNS
   • Google Search Console
   • Google Tag Manager

   0 say Bitwarden is a good alternative to Syncthing 0 say Bitwarden isn’t a real alternative to Syncthing

   Comment
   Close cos 0.889
6. 06
   Zotero zotero.org Top 10K English

   Zotero | Your personal research assistant

   Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research.

   • Microsoft 365
   • Amazon SES
   • Apache HTTP Server
   • Amazon CloudFront
   • Amazon Route 53

   0 say Zotero is a good alternative to Syncthing 0 say Zotero isn’t a real alternative to Syncthing

   Comment
   Close cos 0.888
7. 07
   doxygen.org Top 10K English

   Doxygen homepage

   Source code documentation and analysis tool

   • Bootstrap
   • Cloudflare
   • Cloudflare DNS
   • Cloudflare Web Analytics
   • Google AdSense

   0 say doxygen.org is a good alternative to Syncthing 0 say doxygen.org isn’t a real alternative to Syncthing

   Comment
   Close cos 0.887
8. 08
   NTP ntp.org Top 100 English

   NTP: Network Time Protocol

   The NTP Project conducts Research and Development in NTP, a protocol designed to synchronize the clocks of computers over a network to a common timebase.

   • Apache HTTP Server
   • GlobalSign
   • Google Analytics
   • Google Fonts
   • Google Search Console
   • Microsoft Clarity

   0 say NTP is a good alternative to Syncthing 0 say NTP isn’t a real alternative to Syncthing

   Comment
   Close cos 0.884
9. 09
   NLnet Labs nlnetlabs.nl Top 10K English

   NLnet Labs - Home

   Research & Development, Internet architecture, DNS, Routing, Stability and Security.

   • Bootstrap
   • Font Awesome
   • jQuery
   • Adobe Fonts
   • Google Workspace
   • nginx

   0 say NLnet Labs is a good alternative to Syncthing 0 say NLnet Labs isn’t a real alternative to Syncthing

   Comment
   Close cos 0.884
10. 10
    FreeBSD freebsd.org Top 10K English

    The FreeBSD Project

    free Unix-like operating system

    • Font Awesome
    • Microsoft 365
    • Plausible

    0 say FreeBSD is a good alternative to Syncthing 0 say FreeBSD isn’t a real alternative to Syncthing

    Comment
    Close cos 0.884
11. 11
    Linux kernel kernel.org Top 10K English

    The Linux Kernel Archives

    Unix-like operating system kernel, basis for all Linux operating systems

    • Google Search Console
    • nginx

    0 say Linux kernel is a good alternative to Syncthing 0 say Linux kernel isn’t a real alternative to Syncthing

    Comment
    Close cos 0.885
12. 12
    Creative Commons creativecommons.org Top 1K English

    Building tools for shared knowledge - Creative Commons

    family of public copyright licenses for allowing free use of a work

    • Microsoft 365
    • Cloudflare
    • Cloudflare DNS
    • Google Analytics
    • Google Workspace
    • PHP

    0 say Creative Commons is a good alternative to Syncthing 0 say Creative Commons isn’t a real alternative to Syncthing

    Comment
    Close cos 0.883
13. 13
    iLovePDF ilovepdf.com Top 10K English

    iLovePDF | Online PDF tools for PDF lovers

    iLovePDF is an online service to work with PDF files completely free and easy to use. Merge PDF, split PDF, compress PDF, office to PDF, PDF to JPG and more!

    • Atlassian
    • Cloudflare
    • Cloudflare DNS
    • Google Analytics
    • Google Search Console
    • Google Workspace

    0 say iLovePDF is a good alternative to Syncthing 0 say iLovePDF isn’t a real alternative to Syncthing

    Comment
    Close cos 0.884
14. 14
    curl curl.se Top 10K English

    curl

    command line tool and library for transferring data with URL syntax

    • Fastly
    • nginx

    0 say curl is a good alternative to Syncthing 0 say curl isn’t a real alternative to Syncthing

    Comment
    Close cos 0.881
15. 15
    freedesktop.org Top 10K English

    Checking you are not a bot

    open-source desktop environment software project

    • Apache HTTP Server
    • Google Search Console

    0 say freedesktop.org is a good alternative to Syncthing 0 say freedesktop.org isn’t a real alternative to Syncthing

    Comment
    Close cos 0.881
16. 16
    OSF osf.io Top 10K English

    OSF

    tools that make open science practice easier

    • Mailgun
    • Google Cloud DNS
    • Google Search Console
    • Mailchimp
    • Mailchimp Transactional

    0 say OSF is a good alternative to Syncthing 0 say OSF isn’t a real alternative to Syncthing

    Comment
    Close cos 0.883
17. 17
    SignUpGenius signupgenius.com Top 10K English

    SignUpGenius: Free Sign Up Sheets, Fundraisers & Online Payments

    Create free sign up sheets, collect dues, run fundraisers, sell tickets, and more. Every way your group organizes and collects, in one place. Free to start.

    • Font Awesome
    • Microsoft 365
    • Apple Business
    • Atlassian
    • Cloudflare
    • Cloudflare DNS

    0 say SignUpGenius is a good alternative to Syncthing 0 say SignUpGenius isn’t a real alternative to Syncthing

    Comment
    Close cos 0.880
18. 18
    Tor Project torproject.org Top 10K English

    Tor Project | Anonymity Online

    Anonymity Online | Defend yourself against tracking and surveillance. Circumvent censorship.

    • Bootstrap
    • Font Awesome
    • jQuery
    • Apache HTTP Server
    • Google Search Console

    0 say Tor Project is a good alternative to Syncthing 0 say Tor Project isn’t a real alternative to Syncthing

    Comment
    Close cos 0.878
19. 19
    RustDesk rustdesk.com Top 10K English

    RustDesk: Open-Source Remote Desktop with Self-Hosted Server Solutions

    RustDesk is open-source remote desktop software for your own self-hosted server, a TeamViewer and AnyDesk alternative for Windows, macOS, Linux and Android.

    • Microsoft 365
    • Amazon SES
    • Astro
    • Cloudflare
    • Cloudflare DNS
    • Google Analytics

    0 say RustDesk is a good alternative to Syncthing 0 say RustDesk isn’t a real alternative to Syncthing

    Comment
    Close cos 0.880
20. 20
    Zenodo zenodo.org Top 10K English

    Zenodo

    research data repository

    • cdnjs
    • Microsoft 365
    • Cloudflare DNS
    • Google Search Console
    • Matomo
    • nginx

    0 say Zenodo is a good alternative to Syncthing 0 say Zenodo isn’t a real alternative to Syncthing

    Comment
    Close cos 0.880

Ranked by score: the cosine similarity of each site’s vector to syncthing.net’s, less a small penalty for generic sites that are close to everything. Highlighted technologies are ones Syncthing uses too. Votes and comments come from visitors and don’t change the ranking.

04 · Fingerprints

Technology

What Syncthing is built with, and what its closest competitors use, from its homepage’s code and its DNS records.