epstosvg.js

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

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

// If a valid folder is selected
if (sourceFolder != null) {
  files = new Array();
  fileType = "*.eps";
  files = sourceFolder.getFiles(fileType);

  if (files.length > 0) {
    destFolder = Folder.selectDialog("Select the folder where you want to save the converted SVG files.", "~");
    processFiles(files);
  } else {
    alert("No matching files found");
  }
}

function processFiles(files) {
  if (files.length) {
    var file = files.shift();

    sourceDoc = app.open(file);

    targetFile = new File(destFolder + "/" + sourceDoc.name.split(".")[0] + ".svg");

    var options = new ExportOptionsSVG();
    sourceDoc.exportFile(targetFile, ExportType.SVG, options);
    sourceDoc.close(SaveOptions.DONOTSAVECHANGES);

    processFiles(files);
  } else {
    alert("Files are saved as UNCOMPRESSED SVG in " + destFolder);
  }
}