diff --git a/src/main.go b/src/main.go
index 9dc56f8..b40f17d 100644
--- a/src/main.go
+++ b/src/main.go
@@ -309,6 +309,9 @@ func main() {
 			SaveToCsvFile(exportingData, keyMap, *outputPath, *fullExport)
 		case ".json":
 			SaveToJSONFile(exportingData, keyMap, *outputPath, *fullExport)
+		case ".jsl":
+			SaveToJSLFile(exportingData, keyMap, *outputPath, *fullExport)
+
 		case ".csv.gz":
 			SaveToCsvGzFile(exportingData, keyMap, *outputPath, *fullExport)
 		case ".json.gz":
diff --git a/src/saving.go b/src/saving.go
index cc63d12..95f301d 100644
--- a/src/saving.go
+++ b/src/saving.go
@@ -103,6 +103,49 @@ func SaveToJSONFile(data []StatForTime, keyMap map[uint8]string, path string, fu
 	SaveToJSONWriter(data, keyMap, jsonFile, fullExport)
 }
 
+func SaveToJSLWriter(data []StatForTime, keyMap map[uint8]string, writerOut io.Writer, fullExport bool) {
+	type JSLStatForTime struct {
+		Time int64
+		Keys map[string]int
+	}
+
+	table := make([]JSLStatForTime, len(data))
+	for i, stat := range data {
+		table[i].Keys = make(map[string]int)
+
+		table[i].Time = stat.time
+		var sum int
+		for numKey, key := range keyMap {
+			if fullExport {
+				table[i].Keys[key] = stat.keys[numKey]
+			}
+			sum += stat.keys[numKey]
+		}
+		table[i].Keys["sum"] = sum
+	}
+
+	for ind, line := range table {
+		lineBytes, err := json.Marshal(line)
+		if err != nil {
+			log.Fatal(err)
+		}
+		writerOut.Write(lineBytes)
+		if ind != len(table)-1 {
+			writerOut.Write([]byte("\n"))
+		}
+	}
+}
+
+func SaveToJSLFile(data []StatForTime, keyMap map[uint8]string, path string, fullExport bool) {
+	jslFile, err := os.Create(path)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer jslFile.Close()
+
+	SaveToJSLWriter(data, keyMap, jslFile, fullExport)
+}
+
 func SaveToCsvGzFile(data []StatForTime, keyMap map[uint8]string, path string, fullExport bool) {
 	jsonFile, err := os.Create(path)
 	if err != nil {