> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zas.red/llms.txt
> Use this file to discover all available pages before exploring further.

# Quickstart

> Send your first file, photo or note between two devices in under a minute. No account and no install needed to start.

You need one device to send from and one device to receive on. Nothing else.

<Steps>
  <Step title="Open zas.red on the first device">
    Go to [zas.red](https://zas.red). Zas opens straight into the composer.

    You can send right away. Zas gives you an anonymous session, and the web address is your key to it.
  </Step>

  <Step title="Send something">
    Paste anything, type a note, pick a file, or drag a file in.

    Zas encrypts it on your device before it uploads. It does not compress your file or re-encode your photo.
  </Step>

  <Step title="Open Zas on the second device">
    Sign in on both devices, with Google, Apple or an email code, and the item is already there.

    Without an account, scan the QR code on the first device instead. That carries the anonymous session across.
  </Step>

  <Step title="Use it, then forget it">
    Open, copy or download the item.

    The countdown ring on the item shows the days it has left. When the ring empties, the item deletes itself. You do nothing.
  </Step>
</Steps>

## Sign in, and keep what you already sent

An anonymous session works, but it is small and short: 30 MB, and two days.

When you sign in, the session becomes your account. Nothing re-uploads and nothing is lost. Your limits go up to 100 MB of storage and five days per item.

<Card title="Sign in" icon="key" href="/en/account/sign-in">
  Google, Apple, or an 8-digit email code.
</Card>

## Sending a large file

A file over 50 MB does not go through Zas storage on the free plan. Use **Direct transfer** instead.

Turn on **Direct** in the composer, open Zas on the other device, and the file moves device to device. On the free plan a direct transfer can be up to 10 GB.

Both devices must have Zas open at the same time. If nobody picks up the transfer in ten minutes, the offer disappears.

<Card title="Direct transfer" icon="bolt" href="/en/concepts/direct">
  How it works and when to use it.
</Card>

## What to try next

* Pin an item, and its countdown pauses until you release it. See [Pins](/en/using-zas/pins).
* Create a channel and invite someone. See [Channels](/en/using-zas/channels).
* Turn an item into a public link with the key held in the web address. See [Share links](/en/using-zas/share-links).


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