diff --git a/go.mod b/go.mod
index c28a6db..60c611d 100644
--- a/go.mod
+++ b/go.mod
@@ -16,6 +16,7 @@ require (
 	github.com/google/orderedcode v0.0.1
 	github.com/klauspost/compress v1.17.0 // indirect
 	github.com/kr/pretty v0.3.1 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/rogpeppe/go-internal v1.11.0 // indirect
 	github.com/stretchr/testify v1.8.4
 	github.com/vmihailenco/msgpack/v5 v5.3.5
diff --git a/json.go b/json.go
index a5095bc..73be35f 100644
--- a/json.go
+++ b/json.go
@@ -3,6 +3,7 @@ package clover
 import (
 	"bufio"
 	"encoding/json"
+	"fmt"
 	"os"
 
 	d "github.com/ostafen/clover/v2/document"
@@ -10,7 +11,7 @@ import (
 )
 
 // ExportCollection exports an existing collection to a JSON file.
-func (db *DB) ExportCollection(collectionName string, exportPath string) error {
+func (db *DB) ExportCollection(collectionName string, exportPath string) (err error) {
 	exists, err := db.HasCollection(collectionName)
 	if err != nil {
 		return err
@@ -18,23 +19,40 @@ func (db *DB) ExportCollection(collectionName string, exportPath string) error {
 	if !exists {
 		return ErrCollectionNotExist
 	}
-
-	result, err := db.FindAll(query.NewQuery(collectionName))
+	q := query.NewQuery(collectionName)
+	f, err := os.Create(exportPath)
 	if err != nil {
 		return err
 	}
+	defer f.Close()
 
-	docs := make([]map[string]interface{}, 0)
-	for _, doc := range result {
-		docs = append(docs, doc.AsMap())
-	}
-
-	jsonString, err := json.Marshal(docs)
-	if err != nil {
-		return err
+	defer func() {
+		if p := recover(); p != nil {
+			err = fmt.Errorf("internal error: %v", p)
+		}
+	}()
+	isFirst := true
+	err = db.ForEach(q, func(doc *d.Document) bool {
+		jsonByte, err := json.Marshal(doc.AsMap())
+		if err != nil {
+			panic(err)
+		}
+		jsonString := string(jsonByte)
+		if isFirst {
+			isFirst = false
+			jsonString = "[" + jsonString
+		} else {
+			jsonString = "," + jsonString
+		}
+		if _, err := f.WriteString(jsonString); err != nil {
+			panic(err)
+		}
+		return true
+	})
+	if err == nil {
+		_, err = f.WriteString("]")
 	}
-
-	return os.WriteFile(exportPath, jsonString, os.ModePerm)
+	return
 }
 
 // ImportCollection imports a collection from a JSON file.