diff --git a/libs/actions.js b/libs/actions.js
index 3e967d99..323aab20 100644
--- a/libs/actions.js
+++ b/libs/actions.js
@@ -2759,7 +2759,8 @@ actions.prototype._clickLocalSaveSelect = function (x, y) {
                         "version": core.firstData.version,
                         "data": saves
                     }
-                    core.download(core.firstData.name + "_" + core.formatDate2(new Date()) + ".h5save", JSON.stringify(content));
+                    core.download(core.firstData.name + "_" + core.formatDate2(new Date()) + ".h5save", 
+                        LZString.compressToBase64(JSON.stringify(content)));
                 }
             };
             if (selection == 0) core.getAllSaves(callback);
@@ -2913,12 +2914,13 @@ actions.prototype._clickReplay_replayRemain = function () {
 
 actions.prototype._clickReplay_download = function () {
     // if (core.hasFlag('debug')) return core.drawText("\t[系统提示]调试模式下无法下载录像");
-    core.download(core.firstData.name + "_" + core.formatDate2() + ".h5route", JSON.stringify({
-        'name': core.firstData.name,
-        'hard': core.status.hard,
-        'seed': core.getFlag('__seed__'),
-        'route': core.encodeRoute(core.status.route)
-    }));
+    core.download(core.firstData.name + "_" + core.formatDate2() + ".h5route", 
+        LZString.compressToBase64(JSON.stringify({
+            'name': core.firstData.name,
+            'hard': core.status.hard,
+            'seed': core.getFlag('__seed__'),
+            'route': core.encodeRoute(core.status.route)
+        })));
 
 }
 
diff --git a/libs/control.js b/libs/control.js
index 4a5aa417..43212ef9 100644
--- a/libs/control.js
+++ b/libs/control.js
@@ -2136,7 +2136,7 @@ control.prototype._syncSave_http = function (type, saves) {
     var formData = new FormData();
     formData.append('type', 'save');
     formData.append('name', core.firstData.name);
-    formData.append('data', JSON.stringify(saves));
+    formData.append('data', LZString.compressToBase64(JSON.stringify(saves)));
     formData.append('shorten', '1');
 
     core.http("POST", "/games/sync.php", formData, function (data) {
@@ -2181,7 +2181,19 @@ control.prototype._syncLoad_http = function (id, password) {
     core.http("POST", "/games/sync.php", formData, function (data) {
         var response = JSON.parse(data);
         if (response.code == 0) {
-            core.control._syncLoad_write(JSON.parse(response.msg));
+            var msg = null;
+            try {
+                msg = JSON.parse(LZString.decompressFromBase64(response.msg));
+            } catch (e) {
+                try {
+                    msg = JSON.parse(response.msg);
+                } catch (e) {}
+            }
+            if (msg) {
+                core.control._syncLoad_write(msg);
+            } else {
+                core.drawText("出错啦！\n存档解析失败！");
+            }
         }
         else {
             core.drawText("出错啦！\n无法从服务器同步存档。\n错误原因："+response.msg);
diff --git a/libs/events.js b/libs/events.js
index b4672f9d..3585720e 100644
--- a/libs/events.js
+++ b/libs/events.js
@@ -217,7 +217,8 @@ events.prototype._gameOver_confirmDownload = function (ending) {
             'seed': core.getFlag('__seed__'),
             'route': core.encodeRoute(core.status.route)
         }
-        core.download(core.firstData.name + "_" + core.formatDate2(new Date()) + ".h5route", JSON.stringify(obj));
+        core.download(core.firstData.name + "_" + core.formatDate2(new Date()) + ".h5route", 
+            LZString.compressToBase64(JSON.stringify(obj)));
         core.events._gameOver_askRate(ending);
     }, function () {
         core.events._gameOver_askRate(ending);
diff --git a/libs/utils.js b/libs/utils.js
index 4f3d243c..b85395b9 100644
--- a/libs/utils.js
+++ b/libs/utils.js
@@ -1019,19 +1019,22 @@ utils.prototype.readFileContent = function (content) {
             core.platform.successCallback(content);
         return;
     }
+    // 检查base64
     try {
-        obj = JSON.parse(content);
-        if (obj) {
-            if (core.platform.successCallback)
-                core.platform.successCallback(obj);
-            return;
+        obj = JSON.parse(LZString.decompressFromBase64(content));
+    } catch (e) {
+        try {
+            obj = JSON.parse(content);
+        } catch (e) {
+            main.log(e)
         }
     }
-    catch (e) {
-        main.log(e);
-        alert(e);
+
+    if (obj) {
+        if (core.platform.successCallback)
+            core.platform.successCallback(obj);
+        return;
     }
-    // alert("不是有效的JSON文件！");
 
     if (core.platform.errorCallback)
         core.platform.errorCallback();