Quick little script to batch-convert Illustrator .ai's to .svg's, based on Adobe's sample 'save to pdf's' script. Save it to a jsx, and load it under illustrator. Intended for Illustrator CS6.

IllustratorSaveAsSVGs.jsx

/**********************************************************

ADOBE SYSTEMS INCORPORATED 
Copyright 2005-2010 Adobe Systems Incorporated 
All Rights Reserved 

NOTICE:  Adobe permits you to use, modify, and 
distribute this file in accordance with the terms
of the Adobe license agreement accompanying it.  
If you have received this file from a source 
other than Adobe, then your use, modification,
or distribution of it requires the prior 
written permission of Adobe. 

*********************************************************/

/**********************************************************
 
Save as SVGs.jsx

DESCRIPTION

This sample gets files specified by the user from the 
selected folder and batch processes them and saves them 
as SVGs in the user desired destination with the same 
file name.

Based on Adobe's "Save as PDFs" sample script, intended for Illustrator CS6
 
**********************************************************/

// Main Code [Execution of script begins here]

// uncomment to suppress Illustrator warning dialogs
// app.userInteractionLevel = UserInteractionLevel.DONTDISPLAYALERTS;

var destFolder, sourceFolder, files, fileType, sourceDoc, targetFile, svgSaveOpts;

// Select the source folder.
sourceFolder = Folder.selectDialog( 'Select the folder with Illustrator files you want to convert to SVG', '~' );

// If a valid folder is selected
if ( sourceFolder != null )
{
  files = new Array();
	fileType = prompt( 'Select type of Illustrator files to you want to process. Eg: *.ai', ' ' );
	
	// Get all files matching the pattern
	files = sourceFolder.getFiles( fileType );
	
	if ( files.length > 0 )
	{
		// Get the destination to save the files
		destFolder = Folder.selectDialog( 'Select the folder where you want to save the converted SVG files.', '~' );
		for ( i = 0; i < files.length; i++ )
		{
			sourceDoc = app.open(files[i]); // returns the document object
									
			// Call function getNewName to get the name and file to save the SVG
			targetFile = getNewName();
			
			// Call function getSVGOptions get the SVGSaveOptions for the files
			svgSaveOpts = getSVGOptions( );
			
			// Save as svg
			sourceDoc.exportFile(targetFile, ExportType.SVG, svgSaveOpts );

			sourceDoc.close();
		}
		alert( 'Files are saved as SVG in ' + destFolder );
	}
	else
	{
		alert( 'No matching files found' );
	}
}


/*********************************************************

getNewName: Function to get the new file name. The primary
name is the same as the source file.

**********************************************************/

function getNewName()
{
	var ext, docName, newName, saveInFile, docName;
	docName = sourceDoc.name;
	ext = '.svg'; // new extension for svg file
	newName = "";
		
	for ( var i = 0 ; docName[i] != "." ; i++ )
	{
		newName += docName[i];
	}
	newName += ext; // full svg name of the file
	
	// Create a file object to save the svg
	saveInFile = new File( destFolder + '/' + newName );
	

	return saveInFile;
}


function getSVGOptions()
{
	var svgSaveOpts = new ExportOptionsSVG();

	//just using defaults aside from what's written below
  //see http://cssdk.host.adobe.com/sdk/1.0/docs/WebHelp/references/csawlib/com/adobe/illustrator/ExportOptionsSVG.html
	
  svgSaveOpts.embedRasterImages = true;
	
	return svgSaveOpts;	
}

Any chance this works for cc 2018?

@Sqwear I can confirm this works, good stuff!

Extended script with options for optimizing svg

function getSVGOptions() { var svgSaveOpts = new ExportOptionsSVG(); svgSaveOpts.embedRasterImages = false; svgSaveOpts.cssProperties = SVGCSSPropertyLocation.PRESENTATIONATTRIBUTES; svgSaveOpts.coordinatePrecision = 3; svgSaveOpts.fontType = SVGFontType.SVGFONT; svgSaveOpts.documentEncoding = SVGDocumentEncoding.UTF8; svgSaveOpts.fontSubsetting = SVGFontSubsetting.None; return svgSaveOpts; }

Tested with some Illustrator files, which are a bit older version, I'm getting a "Convert to Artboards" pop-up for every file.
Is it possible to remove it? Or to only choose one time for all the files?
The options that I'm seeing are "Create artboards for: 1) Legacy Artboards 2) Crop area(s) 3) Artwork Bounding Box.
Would be great to only have Crop area(s) checked... All though I can surely understand if you don't have time for this. :-D

Hey very thanks!!!

Thanks a lot.