FileSaver.js

============

FileSaver.js implements the HTML5 W3C `saveAs()` FileSaver interface in browsers that do

not natively support it. There is a [FileSaver.js demo][1] that demonstrates saving

various media types.

FileSaver.js is the solution to saving files on the client-side, and is perfect for

webapps that need to generate files, or for saving sensitive information that shouldn't be

sent to an external server.

Looking for `canvas.toBlob()` for saving canvases? Check out

[canvas-toBlob.js](https://github.com/eligrey/canvas-toBlob.js) for a cross-browser implementation.

Supported browsers

------------------

| Browser        | Constructs as | Filenames    | Max Blob Size | Dependencies |

| -------------- | ------------- | ------------ | ------------- | ------------ |

| Firefox 20+    | Blob          | Yes          | 800 MiB       | None         |

| Firefox < 20   | data: URI     | No           | n/a           | [Blob.js](https://github.com/eligrey/Blob.js) |

| Chrome         | Blob          | Yes          | 345 MiB       | None         |

| Chrome for Android | Blob      | Yes          | 345 MiB       | None         |

| IE 10+         | Blob          | Yes          | 600 MiB       | None         |

| Opera 15+      | Blob          | Yes          | 345 MiB       | None         |

| Opera < 15     | data: URI     | No           | n/a           | [Blob.js](https://github.com/eligrey/Blob.js) |

| Safari 6.1+*   | Blob          | No           | ?             | None         |

| Safari < 6     | data: URI     | No           | n/a           | [Blob.js](https://github.com/eligrey/Blob.js) |

Feature detection is possible:

```js

try {

    var isFileSaverSupported = !!new Blob;

} catch (e) {}

```

### IE < 10

It is possible to save text files in IE < 10 without Flash-based polyfills.

See [ChenWenBrian and koffsyrup's `saveTextAs()`](https://github.com/koffsyrup/FileSaver.js#examples) for more details.

### Safari 6.1+

Blobs may be opened instead of saved sometimes—you may have to direct your Safari users to manually

press <kbd>⌘</kbd>+<kbd>S</kbd> to save the file after it is opened. Using the `application/octet-stream` MIME type to force downloads [can cause issues in Safari](https://github.com/eligrey/FileSaver.js/issues/12#issuecomment-47247096).

### iOS

saveAs must be run within a user interaction event such as onTouchDown or onClick; setTimeout will prevent saveAs from triggering. Due to restrictions in iOS saveAs opens in a new window instead of downloading, if you want this fixed please [tell Apple](https://bugs.webkit.org/show_bug.cgi?id=102914) how this bug is affecting you.

Syntax

------

```js

FileSaver saveAs(in Blob data, in DOMString filename)

```

Examples

--------

### Saving text

```js

var blob = new Blob(["Hello, world!"], {type: "text/plain;charset=utf-8"});

saveAs(blob, "hello world.txt");

```

The standard W3C File API [`Blob`][3] interface is not available in all browsers.

[Blob.js][4] is a cross-browser `Blob` implementation that solves this.

### Saving a canvas

```js

var canvas = document.getElementById("my-canvas"), ctx = canvas.getContext("2d");

// draw to canvas...

canvas.toBlob(function(blob) {

    saveAs(blob, "pretty image.png");

});

```

Note: The standard HTML5 `canvas.toBlob()` method is not available in all browsers.

[canvas-toBlob.js][5] is a cross-browser `canvas.toBlob()` that polyfills this.

![Tracking image](https://in.getclicky.com/212712ns.gif)

  [1]: http://eligrey.com/demos/FileSaver.js/

  [3]: https://developer.mozilla.org/en-US/docs/DOM/Blob

  [4]: https://github.com/eligrey/Blob.js

  [5]: https://github.com/eligrey/canvas-toBlob.js

Contributing

------------

The `FileSaver.js` distribution file is compiled with Uglify.js like so:

```bash

uglifyjs FileSaver.js --comments /@source/ > FileSaver.min.js

```

Please make sure you build a production version before submitting a pull request.