Backup with no worries

An app that backs up your valuable data with simple steps

GooglePlay AppStore PC

Server maintenance announcement.
For the purpose of partly reinforcing and maintaining the server, maintenance of the JS backup management server for free version will be carried out on the following schedule.
It can not be used at the following times. We appreciate your inconvenience but we ask for your understanding.

Jun 7, 2017 P.M.5: 00 ~ Jun 8, 5: 00(JST)

Affected function: backup and restore function to other company's cloud.(Google Drive, Dropbox, SugarSync)
There is no effect on our JS cloud server (when using the easy data transfer function).


6 million downloads achieved.
Thanks to the support of our users, JS Backup apps have achieved over 6 Million downloads!
We will continue to strive to improve the app to best suit your needs. Please continue to support us, thank you.


JS Backup Users that linked with "Dropbox":
Beginning from 2017/6/28 the old version of JS Backup will not be able to access to Dropbox.
If you are currently using a previous version, please update to the most recent version.
Backup and restoration may fail if the previous version is used after 2017/6/28

Backup with no worries

JS Backup is a tool that aims to achieve the ability to " backup all types of data by simple operation "

Easy Data Transfer

With JS Backup, it is possible to transfer precious data such as contacts, calendar, etc. with a few simple steps.


PC Application

One can immerse into the world of JS Backup with the computer app, which includes features such as managing backup data, synchronizing data between devices, etc.


Cloud Support

We support a variety of cloud services including: Data Storage Box (NTT docomo), Dropbox, SugarSync and GoogleDrive.


Frequently Asked Questions(FAQ) & User Guide

FAQUser Guide

Main Features

One can back up and recover standard application data, applications, images, songs, videos and documents. By using the backup record server, it is also possible to check up on backup history or download backup data stored on cloud storage service with a computer.

  • Easy Data Transfer

    " Have you ever felt the troublesomeness of transferring data over when you got a new phone? With "Easy Data Transfer," you can move important data such as contacts, calendars, etc. in just a few clicks. It is a revolutionary feature that allows data transfer without any worries.

  • Support for Cloud Storage Services

    On top of SD card, one may also select cloud storage services including Dropbox, SugarSync, GoogleDrive, Data Storage Box(NTT docomo), Easy Data Transfer(JS Backup server) as the destination of backup.

    *there are some limitations on the iOS version

  • Support for Jorte

    JS Backup is developed by the same team as the calendar app "Jorte." All data including schedules, settings, etc. on "Jorte" can be backed up and recovered using JS Backup.

    Know more about "Jorte"

  • JS Backup PC app

    You will be spared from the troublesome of finding where to store the ever-growing data and connecting cables with the use of "JS Backup PC app."

    One can easily back up, restore or send files between smartphone and computer with just a shared Wi-Fi network. The PC app can connect to multiple smartphones at the same time and synchronize the data between those devices.

    No data is sent to the internet with the use of JS Backup PC app.
    It currently supports Microsoft 7 and 8.

Support for the subscribers of NTT docomo

JS Backup is advertised as an app that allows easy backup and data transfer by NTT docomo, a mobile operator in Japan. Data transfer between smartphones is ultra-easy with JS Backup.

Easy Data TransferData Transfer using Data Storage BoxTransfer of contact data to iPad


Please send any questions or comments to It is however possible that our reply may be blocked by the spam checker. Please check your settings and make sure you can receive from the above address before sending us the e-mail.

*We do not provide support through phone calls and thank you for the understanding.
*The e-mails we received may be shown to our support business partners.