# Download and verify the Tails ISO image

[[!img install/inc/infography/download-and-verify.png link="no" alt=""]]

In this step you You will download Tails as an ISO image: a single file containing the whole operating system. For your security, it is very important to also verify your download. We propose you two techniques to do this verification automatically.

[[!img lib/spinner.png link="no" alt=""]]

Please wait…

0.2.8

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You can download and verify the ISO image via:

## Browser add-on

for Firefox 38.0.1+ or Tor Browser 5+

A Firefox add-on to download and verify Tails automatically.

If you are not in Firefox or Tor Browser:

Copy and paste this link in Firefox or Tor Browser:

`https://tails.boum.org/install/win/usb/` `https://tails.boum.org/install/mac/usb/` `https://tails.boum.org/install/mac/dvd/` `https://tails.boum.org/install/debian/usb/` `https://tails.boum.org/install/linux/usb/` `https://tails.boum.org/upgrade/tails/` `https://tails.boum.org/install/dvd/` `https://tails.boum.org/install/vm/` `https://tails.boum.org/install/download/`

If you are already in Firefox or Tor Browser:

Install Firefox add-on

## BitTorrent

[[!inline pages="install/inc/steps/bittorrent_verification.inline" raw="yes"]] Download Torrent file

[[Download and verify using OpenPGP|install/download/openpgp]]

You seem to be using an unsupported browser.

You can download and verify the ISO image via:

## Browser add-on

for Firefox 38.0.1+ or Tor Browser 5+

A Firefox add-on to download and verify Tails automatically.

You are running Firefox 1.0. Please update to Firefox 38.0.1, Tor Browser 5, or newer and visit this link:

Copy and paste this link in Firefox or Tor Browser:

`https://tails.boum.org/install/win/usb/` `https://tails.boum.org/install/mac/usb/` `https://tails.boum.org/install/mac/dvd/` `https://tails.boum.org/install/debian/usb/` `https://tails.boum.org/install/linux/usb/` `https://tails.boum.org/upgrade/tails/` `https://tails.boum.org/install/dvd/` `https://tails.boum.org/install/vm/` `https://tails.boum.org/install/download/`

## BitTorrent

[[!inline pages="install/inc/steps/bittorrent_verification.inline" raw="yes"]] Download Torrent file

[[Download and verify using OpenPGP|install/download/openpgp]]

We detected that you are running Firefox or Tor Browser and already have our Firefox add-on installed.

Use Firefox add-on
Already installed
Use Firefox add-on
[[!img install/inc/icons/check.png link="no" alt="Done"]]

We detected that you are running Firefox or Tor Browser but have an outdated version of our Firefox add-on.

Update Firefox add-on
No restart
Update Firefox add-on
[[!img install/inc/icons/check.png link="no" alt="Done"]]

We detected that you are running Firefox or Tor Browser.

You can download the ISO image via our Firefox add-on. The add-on verifies your download [[!toggle id="extension-verification" text="automatically"]].

[[!toggleable id="extension-verification" text=""" [[!toggle id="extension-verification" text="X"]]

The verification is based on a cryptographic checksum downloaded from our website.

"""]] Install Firefox add-on
No restart
Install Firefox add-on
[[!img install/inc/icons/check.png link="no" alt="Done"]]

or [[!toggle id="bittorrent-verification" text="Download and verify via BitTorrent"]]

[[!toggleable id="bittorrent-verification" text=""" [[!toggle id="bittorrent-verification" text="X"]] [[!inline pages="install/inc/steps/bittorrent_verification.inline" raw="yes"]]

Download Torrent file

"""]]

or [[Download and verify using OpenPGP|install/download/openpgp]]

Download Tails [[!inline pages="inc/stable_i386_version" raw="yes"]] ISO image ($SIZE MiB)
Download Tails [[!inline pages="inc/stable_i386_version" raw="yes"]] ISO image $SPEED KB/s — $DOWNLOADED/$SIZE MiB, ??? minutes minute ??? seconds second
$PROGRESS complete $PROGRESS
Downloading to $PATH Downloaded to $PATH
Retry [[!img install/inc/icons/pause.png link="no" alt="Pause"]] [[!img install/inc/icons/play.png link="no" alt="Resume"]] Cancel
[[!img install/inc/icons/check.png link="no" alt="Done"]] [[!img install/inc/icons/failed.png link="no" alt="Failed"]]

The download has been paused. Click on the play button to resume.

The download of the ISO image failed! Please check your network connection and click Retry…

Verify ISO image
Computing SHA-256 checksum…
$PROGRESS [[!img install/inc/icons/check.png link="no" alt="Done"]] [[!img install/inc/icons/failed.png link="no" alt="Failed"]]

You downloaded and verified the ISO image successfully!

You can now continue with the next step and [[Install an intermediary Tails|install/win/usb#next]]. [[Install an intermediary Tails|install/mac/usb#next]]. [[Burn a Tails DVD|install/mac/dvd#next]]. [[Install Tails Installer|install/debian/usb#next]]. [[Install an intermediary Tails|install/linux/usb#next]]. [[Install an intermediary Tails|upgrade/tails#next]]. [[Burn Tails on a DVD|install/dvd#next]]. read our [[Introduction to virtual machines|install/vm#next]].

If you are knowledgeable about OpenPGP, you can do additional verification using the [[!toggle id="openpgp" text="OpenPGP signature"]].

[[!toggleable id="openpgp" text="""

- Download the OpenPGP signature
- [[Download the Tails signing key|tails-signing.key]]
- [[Learn how to do this|install/download/openpgp]]

"""]]

Download again

The verification of the ISO image failed! Please try to download again…

Download again

The verification of the ISO image failed again! Please try to download again from a different place or a different computer…

Download again