diff --git a/pkgs/servers/matrix-synapse/default.nix b/pkgs/servers/matrix-synapse/default.nix
index 39e1952e1e8..112fdac53d3 100644
--- a/pkgs/servers/matrix-synapse/default.nix
+++ b/pkgs/servers/matrix-synapse/default.nix
@@ -1,12 +1,14 @@
 { lib, stdenv, python3, openssl
 , enableSystemd ? stdenv.isLinux, nixosTests
 , enableRedis ? false
+, callPackage
 }:
 
 with python3.pkgs;
 
 let
   plugins = python3.pkgs.callPackage ./plugins { };
+  tools = callPackage ./tools { };
 in
 buildPythonApplication rec {
   pname = "matrix-synapse";
@@ -68,6 +70,7 @@ buildPythonApplication rec {
 
   passthru.tests = { inherit (nixosTests) matrix-synapse; };
   passthru.plugins = plugins;
+  passthru.tools = tools;
   passthru.python = python3;
 
   meta = with stdenv.lib; {
diff --git a/pkgs/servers/matrix-synapse/tools/default.nix b/pkgs/servers/matrix-synapse/tools/default.nix
new file mode 100644
index 00000000000..43667f9e16d
--- /dev/null
+++ b/pkgs/servers/matrix-synapse/tools/default.nix
@@ -0,0 +1,4 @@
+{ callPackage }:
+{
+  rust-synapse-compress-state = callPackage ./rust-synapse-compress-state.nix { };
+}
diff --git a/pkgs/servers/matrix-synapse/tools/rust-synapse-compress-state.nix b/pkgs/servers/matrix-synapse/tools/rust-synapse-compress-state.nix
new file mode 100644
index 00000000000..f770da75fd0
--- /dev/null
+++ b/pkgs/servers/matrix-synapse/tools/rust-synapse-compress-state.nix
@@ -0,0 +1,22 @@
+{ lib, rustPlatform, fetchFromGitHub }:
+
+rustPlatform.buildRustPackage rec {
+  pname = "rust-synapse-compress-state";
+  version = "0.1.0";
+
+  src = fetchFromGitHub {
+    owner = "matrix-org";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "15jvkpbq6pgdc91wnni8fj435yqlwqgx3bb0vqjgsdyxs5lzalfh";
+  };
+
+  cargoSha256 = "1zdf091s0wyribsqp8l6arkablchqxmdyg2xdc57hh06p4fjiw48";
+
+  meta = with lib; {
+    description = "A tool to compress some state in a Synapse instance's database";
+    homepage = "https://github.com/matrix-org/rust-synapse-compress-state";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ hexa maralorn ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index df10e59d55b..4397012b84e 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5238,6 +5238,8 @@ in
 
   matrix-synapse-plugins = recurseIntoAttrs matrix-synapse.plugins;
 
+  matrix-synapse-tools = recurseIntoAttrs matrix-synapse.tools;
+
   matrix-appservice-slack = callPackage ../servers/matrix-synapse/matrix-appservice-slack {};
 
   matrix-appservice-discord = callPackage ../servers/matrix-appservice-discord { };