These are some popular and user friendly OS integrations, providing things like system tray icons, file browser integration, etc. These are good starting points if you are a new user unfamiliar with Syncthing, or not prone to loving the command line.
There's a wealth of further integrations of all kinds listed on the community contributions page. Each integration has their own issue tracker for integration-specific issues, but discussion and assistance for all of them is welcome on the forum.
The Android app is available on Google Play and F-Droid.
This is the basic Syncthing distribution, providing a command line / daemon like executable and a web based user interface.
If you are unsure what to download and you're running on a normal computer, please use the “64-bit (x86-64)” build for your operating system. If you're running on an oddball system such as a NAS, please consult your vendor.
You can choose between the “stable” (latest release) or “candidate” (earlier release candidate) tracks. The stable channel is updated usually every first Tuesday of the month.
# Add the "stable" channel to your APT sources:
echo "deb https://apt.syncthing.net/ syncthing stable" | sudo tee /etc/apt/sources.list.d/syncthing.list
The candidate channel is updated with release candidate builds, usually every second Tuesday of the month. These predate the corresponding stable builds by about three weeks.
# Add the "candidate" channel to your APT sources:
echo "deb https://apt.syncthing.net/ syncthing candidate" | sudo tee /etc/apt/sources.list.d/syncthing.list
Then proceed with the following steps to finish setting up the chosen track and install Syncthing.
# Add the release PGP keys:
curl -s https://syncthing.net/release-key.txt | sudo apt-key add -
# Increase preference of Syncthing's packages ("pinning")
printf "Package: *\nPin: origin apt.syncthing.net\nPin-Priority: 990\n" | sudo tee /etc/apt/preferences.d/syncthing
# Update and install syncthing:
sudo apt-get update
sudo apt-get install syncthing
Depending on your distribution, you may see an error similar to the following when running apt-get:
E: The method driver /usr/lib/apt/methods/https could not be found.
N: Is the package apt-transport-https installed?
E: Failed to fetch https://apt.syncthing.net/dists/syncthing/InRelease
If so, please install the apt-transport-https package and try again:
sudo apt-get install apt-transport-https
If you insist, you can also use the above URLs with http instead of https.