Copyright 2016 Fabian Schlenz
Licensed under GPLv3
This is a small Java app that allows you to download all your history from Telegram's servers and keep a local copy of them.
You can find the whole app packed into one fat jar file under releases.
- You can use multiple accounts with this tool.
- Messages are saved in a SQLite database; media (documents, photos, videos, stickers, geolocations, audios) are downloaded and saved as files.
- A GUI is planned for later; at the moment this is a command line tool only.
- Incremental backups - if you run the tool at a later time, it will only download new messages / media.
This tool relies on Telegram's API. They started rate limiting the calls made by this tool some time ago. As of February 2017, downloading messages is limited to 400 messages every 30 seconds, resulting in 48,000 messages per hour. Media download is not throttled right now, so it should be a lot quicker.
But since this tool is designed to be able to continue it's work at any time, you can just abort the download and continue it later - that way, you'll be moving step by step towards a complete archive of your telegram messages and media files.
You need to have at least Java 1.7 installed on your machine. Download the
jar file, and run it on the console like this:
java -jar telegram_backup.jar.
--help to get a list of all available commands.
Basically, you have to call it with
--login first to login to your telegram account and then
call it again with
--account <phone> to use this account and download all
it's history. If you have just one account, you can omit this parameter.
--with-supergroups and / or
--with-channels to also download all
messages from the supergroups / channels you have joined that have been
active in the last time.
After making a backup, call it again with
--export html to create a few
more-or-less nice to look at HTML files containing all your chats. They will
be created in the subfolder
files of your backup. You can just open the
file index.html in your browser to look at the files.
I've put quite some time into this tool. If you want to donate a small amount, you can send it via Bitcoin to 1CofYzS88iEngxMu4NqQeohWDBUHv9CNDJ or via PayPal to email@example.com.
If you have questions or comments or need help, you can join the telegram_backup Development group at Telegram.
Frequently asked questions
Why do I see error messages?
The library I'm using to access Telegram has some small bugs. One of those is the display of meaningless (because they are being acted accordingly upon) error messages. Those include:
Exception in thread "pool-x-thread-y" java.lang.Error: java.nio.channels.ClosedChannelException
- Something containing
AUTH_ERRORYou can just ignore these messages.
Basically, if the tool is continuing to run after error messages are shown, you can just ignore the messages. Either way, even if Telegram_Backup would "miss" some files or messages, this will be detected at the next run of this program and then tried again.
Where do you save the files?
The files are being saved in your User directory in a folder named
telegram_backup. Under windows, this would typically be under
C:\Users\<username>\telegram_backup. Linux users should look unter
You can change this directory by supplying
--target <dir> when calling
What are those files and folders?
In the folder
telegram_backup is one folder named
stickers, which will
hold all sticker images you've received. Then there is a folder for each
account, named after the phone number associated with that account.
In these folders you will find
dc.dat, which contain
authentication data. There is
database.sqlite which is a SQLite3 database
containing all your messages and other data. The folder
files contains all
media files, named after the ID of the message they belong to. Last but not
least the folder
export contains exported data.
What are EmptyMessages? Why are there so many messages?
If you are a member of a normal group (non-supergroup), all messages sent to that group are being copied to your personal messages at Telegram's servers.
If you later leave this group, those messages are being deleted at Telegram, but since all messages are continuously numbered, you can't simply delete them because that would leave a hole in your message numbers. So these messages are instead replaced by EmptyMessages - those things contain zero information, they are just saying "here was a message but it was deleted".
This tool uses libraries from other developers which are covered by other licenses, which are:
- Kotlogram by Yannick Badoual, licensed under MIT License.
- SQLite JDBC by Taro L. Saito, licensed under Apache License version 2.0.
- Mustache.java by RightTime, Inc., licensed under Apache License version 2.0.
- Logback by QOS.ch, licensed unter LGPL version 2.1.
- SLF4J by QOS.ch, licensed under MIT license.
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