diff --git a/BuildServer/compress-old-reports.js b/BuildServer/compress-old-reports.js
new file mode 100644
index 0000000..40116c7
--- /dev/null
+++ b/BuildServer/compress-old-reports.js
@@ -0,0 +1,34 @@
+"use strict";
+
+const fs = require("fs");
+const path = require("path");
+const zlib = require("zlib");
+const glob = require("glob");
+const async = require("async");
+const settings = require("./settings");
+
+glob("**\\report.json", { "cwd": settings.releasepath }, (globErr, files) => {
+    if (globErr) {
+        return console.log(globErr);
+    }
+
+    return async.parallelLimit(files.map((file) => (callback) => {
+        const originalPath = path.join(settings.releasepath, file);
+        const newPath = `${originalPath}.gz`;
+
+        console.log(file);
+        fs.createReadStream(originalPath)
+            .pipe(zlib.createGzip())
+            .pipe(fs.createWriteStream(newPath))
+            .on("error", callback)
+            .on("finish", () => {
+                fs.unlink(originalPath, callback);
+            });
+    }), 100, (err) => {
+        if (err) {
+            console.log(err);
+        }
+
+        console.log("Done");
+    });
+});
diff --git a/BuildServer/lib/report-processor.js b/BuildServer/lib/report-processor.js
index 1608716..296025b 100644
--- a/BuildServer/lib/report-processor.js
+++ b/BuildServer/lib/report-processor.js
@@ -2,15 +2,19 @@
 
 const path = require("path");
 const fs = require("fs");
+const zlib = require("zlib");
 const glob = require("glob");
 const streamBuffers = require("stream-buffers");
 const _ = require("underscore");
 
+const reportFilename = "report.json.gz";
+
 const writeReport = (releaseDir, err, result, callback) => {
     const readable = new streamBuffers.ReadableStreamBuffer();
 
     readable
-        .pipe(fs.createWriteStream(path.join(releaseDir, "report.json")))
+        .pipe(zlib.createGzip())
+        .pipe(fs.createWriteStream(path.join(releaseDir, reportFilename)))
         .on("error", callback)
         .on("finish", callback);
 
@@ -24,9 +28,10 @@ const writeReport = (releaseDir, err, result, callback) => {
 
 const readReport = (releaseDir, callback) => {
     const writable = new streamBuffers.WritableStreamBuffer();
-    const readStream = fs.createReadStream(path.join(releaseDir, "report.json"));
+    const readStream = fs.createReadStream(path.join(releaseDir, reportFilename));
 
     readStream
+        .pipe(zlib.createGunzip())
         .pipe(writable)
         .on("error", callback)
         .on("finish", () => {
@@ -53,7 +58,7 @@ exports.loadReport = (app, options, callback) => {
             return callback(err, options);
         }
 
-        const reportFile = path.join(releaseDir, "report.json");
+        const reportFile = path.join(releaseDir, reportFilename);
 
         options.files = files;