diff --git a/.circleci/config.yml b/.circleci/config.yml
index a21dc834..10196b2b 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -36,7 +36,7 @@ jobs:
     <<: *steps-test
   test-mac:
     macos:
-      xcode: "10.2.0"
+      xcode: "12.5.0"
     <<: *steps-test
   test-windows:
     executor:
diff --git a/.gitattributes b/.gitattributes
deleted file mode 100644
index b6fcc928..00000000
--- a/.gitattributes
+++ /dev/null
@@ -1 +0,0 @@
-test/input/**/*.txt text eol=lf
diff --git a/README.md b/README.md
index e05497f7..be98c2cd 100644
--- a/README.md
+++ b/README.md
@@ -67,21 +67,22 @@ Given:
 (h)     └── w1
 ```
 
-Exclude: a, b
+Unpack: a, b
 ```bash
 $ asar pack app app.asar --unpack-dir "{x1,x2}"
 ```
 
-Exclude: a, b, d, f
+Unpack: a, b, d, f
 ```bash
 $ asar pack app app.asar --unpack-dir "**/{x1,x2}"
 ```
 
-Exclude: a, b, d, f, h
+Unpack: a, b, d, f, h
 ```bash
 $ asar pack app app.asar --unpack-dir "{**/x1,**/x2,z4/w1}"
 ```
 
+Similarly, `--ignore-dir` flag can be used to ignore certain directories and `--ignore` flag can be used to ignore certain files while packaging.
 ## Using programatically
 
 ### Example
diff --git a/bin/asar.js b/bin/asar.js
index 8efcc1a9..94828368 100755
--- a/bin/asar.js
+++ b/bin/asar.js
@@ -24,11 +24,15 @@ program.command('pack <dir> <output>')
   .option('--ordering <file path>', 'path to a text file for ordering contents')
   .option('--unpack <expression>', 'do not pack files matching glob <expression>')
   .option('--unpack-dir <expression>', 'do not pack dirs matching glob <expression> or starting with literal <expression>')
+  .option('--ignore <expression>', 'do not include files matching glob <expression>')
+  .option('--ignore-dir <expression>', 'do not include dirs matching glob <expression>')
   .option('--exclude-hidden', 'exclude hidden files')
   .action(function (dir, output, options) {
     options = {
       unpack: options.unpack,
       unpackDir: options.unpackDir,
+      ignore: options.ignore,
+      ignoreDir: options.ignoreDir,
       ordering: options.ordering,
       version: options.sv,
       arch: options.sa,
diff --git a/lib/asar.js b/lib/asar.js
index 050e1a76..50f97c20 100644
--- a/lib/asar.js
+++ b/lib/asar.js
@@ -8,6 +8,8 @@ const Filesystem = require('./filesystem')
 const disk = require('./disk')
 const crawlFilesystem = require('./crawlfs')
 
+const END_CHAR = '/'
+
 /**
  * Whether a directory should be excluded from packing due to the `--unpack-dir" option.
  *
@@ -26,6 +28,34 @@ function isUnpackedDir (dirPath, pattern, unpackDirs) {
   }
 }
 
+/**
+ * Whether a directory should be ignored while packing due to the `--ignore-dir` option.
+ *
+ * @param {string} dirPath - directory path to check
+ * @param {string} pattern - directory name or glob pattern
+ */
+function isIgnoredDir (dirPath, pattern, ignoreDirs) {
+  const dirPathStr = dirPath + END_CHAR
+  if (dirPathStr.startsWith(pattern + END_CHAR) || minimatch(dirPath, pattern)) {
+    if (!ignoreDirs.includes(dirPath)) {
+      ignoreDirs.push(dirPath)
+    }
+    return true
+  }
+  return ignoreDirs.some(ignoreDir => dirPath.startsWith(ignoreDir))
+}
+
+/**
+ * Whether a file should be ignored while packing due to the `--ignore` or `--ignore-dir` option.
+ *
+ * @param {string} filePath - file path to check
+ * @param {string} ignoreFile - file name or glob pattern
+ */
+function isIgnoredFile (filePath, ignoreFile) {
+  const filePathStr = filePath + END_CHAR
+  return filePathStr.startsWith(ignoreFile + END_CHAR) || minimatch(filePath, ignoreFile, { matchBase: true })
+}
+
 module.exports.createPackage = async function (src, dest) {
   return module.exports.createPackageWithOptions(src, dest, {})
 }
@@ -60,6 +90,7 @@ module.exports.createPackageFromFiles = async function (src, dest, filenames, me
   const filesystem = new Filesystem(src)
   const files = []
   const unpackDirs = []
+  const ignoreDirs = []
 
   let filenamesSorted = []
   if (options.ordering) {
@@ -106,18 +137,32 @@ module.exports.createPackageFromFiles = async function (src, dest, filenames, me
       metadata[filename] = await crawlFilesystem.determineFileType(filename)
     }
     const file = metadata[filename]
+    const filePath = path.relative(src, filename)
 
     let shouldUnpack
     switch (file.type) {
       case 'directory':
+        if (options.ignoreDir &&
+          isIgnoredDir(filePath, options.ignoreDir, ignoreDirs)
+        ) {
+          break
+        }
+
         if (options.unpackDir) {
-          shouldUnpack = isUnpackedDir(path.relative(src, filename), options.unpackDir, unpackDirs)
+          shouldUnpack = isUnpackedDir(filePath, options.unpackDir, unpackDirs)
         } else {
           shouldUnpack = false
         }
         filesystem.insertDirectory(filename, shouldUnpack)
         break
       case 'file':
+        if (
+          (options.ignore && isIgnoredFile(filePath, options.ignore, options.ignoreDir, ignoreDirs)) ||
+          (options.ignoreDir && isIgnoredDir(filePath, options.ignoreDir, ignoreDirs))
+        ) {
+          break
+        }
+
         shouldUnpack = false
         if (options.unpack) {
           shouldUnpack = minimatch(filename, options.unpack, { matchBase: true })
diff --git a/lib/index.d.ts b/lib/index.d.ts
index b3790ecf..556784d5 100644
--- a/lib/index.d.ts
+++ b/lib/index.d.ts
@@ -9,6 +9,8 @@ export type CreateOptions = {
   transform?: (filePath: string) => NodeJS.ReadWriteStream | void;
   unpack?: string;
   unpackDir?: string;
+  ignore?: string;
+  ignoreDir?: string;
 };
 
 export type ListOptions = {
diff --git a/test/cli-spec.js b/test/cli-spec.js
index 2017d323..8f9be168 100644
--- a/test/cli-spec.js
+++ b/test/cli-spec.js
@@ -45,6 +45,10 @@ describe('command line interface', function () {
     assert.ok(fs.existsSync('tmp/packthis-unpack-cli.asar.unpacked/dir2/file2.png'))
     await compFiles('tmp/packthis-unpack-cli.asar', 'test/expected/packthis-unpack.asar')
   })
+  it('should create archive from directory without ignored files', async () => {
+    await execAsar('p test/input/packthis/ tmp/packthis-ignore-cli.asar --ignore *.png')
+    await compFiles('tmp/packthis-ignore-cli.asar', 'test/expected/packthis-ignore-cli.asar')
+  })
   it('should list files/dirs in archive', async () => {
     return assertAsarOutputMatches('l test/input/extractthis.asar', 'test/expected/extractthis-filelist.txt')
   })
@@ -137,4 +141,24 @@ describe('command line interface', function () {
     assert.ok(fs.existsSync('tmp/packthis-unpack-subdir-cli.asar.unpacked/dir2/subdir/file2.png'))
     assert.ok(fs.existsSync('tmp/packthis-unpack-subdir-cli.asar.unpacked/dir2/subdir/file3.txt'))
   })
+  it('should create archive from directory without ignored dirs', async () => {
+    await execAsar('p test/input/packthis/ tmp/packthis-ignore-dir-cli.asar --ignore-dir dir2')
+    return compFiles('tmp/packthis-ignore-dir-cli.asar', 'test/expected/packthis-ignore-dir-cli.asar')
+  })
+  it('should create archive from directory without ignored dirs specified by glob pattern', async () => {
+    await execAsar('p test/input/packthis-glob/ tmp/packthis-ignore-dir-glob-cli.asar --ignore-dir "{x1,x2}"')
+    return compFiles('tmp/packthis-ignore-dir-glob-cli.asar', 'test/expected/packthis-ignore-dir-glob-cli.asar')
+  })
+  it('should create archive from directory without ignored dirs specified by globstar pattern', async () => {
+    await execAsar('p test/input/packthis-glob/ tmp/packthis-ignore-dir-globstar-cli.asar --ignore-dir "**/{x1,x2}"')
+    return compFiles('tmp/packthis-ignore-dir-globstar-cli.asar', 'test/expected/packthis-ignore-dir-globstar-cli.asar')
+  })
+  it('should create archive from directory without ignored dirs specified by foo/{bar,baz} style pattern', async () => {
+    await execAsar('p test/input/packthis-glob/ tmp/packthis-ignore-dir-glob-foo-bar-baz-cli.asar --ignore-dir "y3/{x1,z1}"')
+    return compFiles('tmp/packthis-ignore-dir-glob-foo-bar-baz-cli.asar', 'test/expected/packthis-ignore-dir-glob-foo-bar-baz-cli.asar')
+  })
+  it('should create archive from directory without ignored dirs and files', async () => {
+    await execAsar('p test/input/packthis/ tmp/packthis-ignore-dir-file-cli.asar --ignore *.png --ignore-dir dir2')
+    return compFiles('tmp/packthis-ignore-dir-file-cli.asar', 'test/expected/packthis-ignore-dir-file-cli.asar')
+  })
 })
diff --git a/test/expected/packthis-ignore-cli.asar b/test/expected/packthis-ignore-cli.asar
new file mode 100644
index 00000000..a6b3f147
Binary files /dev/null and b/test/expected/packthis-ignore-cli.asar differ
diff --git a/test/expected/packthis-ignore-dir-cli.asar b/test/expected/packthis-ignore-dir-cli.asar
new file mode 100644
index 00000000..a6e80a6d
Binary files /dev/null and b/test/expected/packthis-ignore-dir-cli.asar differ
diff --git a/test/expected/packthis-ignore-dir-file-cli.asar b/test/expected/packthis-ignore-dir-file-cli.asar
new file mode 100644
index 00000000..a6e80a6d
Binary files /dev/null and b/test/expected/packthis-ignore-dir-file-cli.asar differ
diff --git a/test/expected/packthis-ignore-dir-glob-cli.asar b/test/expected/packthis-ignore-dir-glob-cli.asar
new file mode 100644
index 00000000..4ff7f8d9
Binary files /dev/null and b/test/expected/packthis-ignore-dir-glob-cli.asar differ
diff --git a/test/expected/packthis-ignore-dir-glob-foo-bar-baz-cli.asar b/test/expected/packthis-ignore-dir-glob-foo-bar-baz-cli.asar
new file mode 100644
index 00000000..905e0989
Binary files /dev/null and b/test/expected/packthis-ignore-dir-glob-foo-bar-baz-cli.asar differ
diff --git a/test/expected/packthis-ignore-dir-globstar-cli.asar b/test/expected/packthis-ignore-dir-globstar-cli.asar
new file mode 100644
index 00000000..bcd3479d
Binary files /dev/null and b/test/expected/packthis-ignore-dir-globstar-cli.asar differ