diff --git a/README.md b/README.md
index ae34414..8cb0a2f 100644
--- a/README.md
+++ b/README.md
@@ -111,9 +111,9 @@ Output:
 
 # Supported formats
 
-| Format    | `.tar` | `.zip` | `7z` | `.gz` | `.xz`, `.lzma` | `.bz`, `.bz2` | `.bz3` | `.lz4` | `.sz` (Snappy) | `.zst` | `.rar` | `.br` |
-|:---------:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
-| Supported | ✓ | ✓¹ | ✓¹ | ✓² | ✓ | ✓ | ✓ | ✓ | ✓² | ✓² | ✓³ | ✓ |
+| Format    | `.tar` | `.zip` | `7z` | `.gz` | `.xz`, `.lzma` | `.bz`, `.bz2` | `.bz3` | `.lz4` | `.sz` (Snappy) | `.zst` | `.rar` | `.br` | `.sqfs`, `.squashfs` |
+|:---------:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|:---:|
+| Supported | ✓ | ✓¹ | ✓¹ | ✓² | ✓ | ✓ | ✓ | ✓ | ✓² | ✓² | ✓³ | ✓ | ✓¹ |
 
 ✓: Supports compression and decompression.
 
diff --git a/src/commands/decompress.rs b/src/commands/decompress.rs
index 4558327..6a4bfff 100644
--- a/src/commands/decompress.rs
+++ b/src/commands/decompress.rs
@@ -49,13 +49,13 @@ pub fn decompress_file(options: DecompressOptions) -> crate::Result<()> {
     assert!(options.output_dir.exists());
     let input_is_stdin = is_path_stdin(options.input_file_path);
 
-    // Zip archives are special, because they require io::Seek, so it requires it's logic separated
+    // Zip and squashfs archives are special, because they require io::Seek, so it requires it's logic separated
     // from decoder chaining.
     //
     // This is the only case where we can read and unpack it directly, without having to do
     // in-memory decompression/copying first.
     //
-    // Any other Zip decompression done can take up the whole RAM and freeze ouch.
+    // Any other decompression done can take up the whole RAM and freeze ouch.
     if let [Extension {
         compression_formats: [archive_format @ (Zip | Squashfs)],
         ..
diff --git a/src/commands/list.rs b/src/commands/list.rs
index 9b3ee2a..6c6f027 100644
--- a/src/commands/list.rs
+++ b/src/commands/list.rs
@@ -25,7 +25,7 @@ pub fn list_archive_contents(
 ) -> crate::Result<()> {
     let reader = fs::File::open(archive_path)?;
 
-    // Zip archives are special, because they require io::Seek, so it requires it's logic separated
+    // Zip and squashfs archives are special, because they require io::Seek, so it requires it's logic separated
     // from decoder chaining.
     //
     // This is the only case where we can read and unpack it directly, without having to do
diff --git a/src/extension.rs b/src/extension.rs
index f9e9c42..bbe44d4 100644
--- a/src/extension.rs
+++ b/src/extension.rs
@@ -25,16 +25,18 @@ pub const SUPPORTED_EXTENSIONS: &[&str] = &[
     "rar",
     "7z",
     "br",
+    // TODO(review): Which to use as "official" extension? squashfs or sqfs?
+    "sqfs",
 ];
 
-pub const SUPPORTED_ALIASES: &[&str] = &["tgz", "tbz", "tlz4", "txz", "tzlma", "tsz", "tzst"];
+pub const SUPPORTED_ALIASES: &[&str] = &["tgz", "tbz", "tlz4", "txz", "tzlma", "tsz", "tzst", "squashfs"];
 
 #[cfg(not(feature = "unrar"))]
-pub const PRETTY_SUPPORTED_EXTENSIONS: &str = "tar, zip, bz, bz2, bz3, gz, lz4, xz, lzma, sz, zst, 7z";
+pub const PRETTY_SUPPORTED_EXTENSIONS: &str = "tar, zip, bz, bz2, bz3, gz, lz4, xz, lzma, sz, zst, 7z, sqfs";
 #[cfg(feature = "unrar")]
-pub const PRETTY_SUPPORTED_EXTENSIONS: &str = "tar, zip, bz, bz2, bz3, gz, lz4, xz, lzma, sz, zst, rar, 7z";
+pub const PRETTY_SUPPORTED_EXTENSIONS: &str = "tar, zip, bz, bz2, bz3, gz, lz4, xz, lzma, sz, zst, rar, 7z, sqfs";
 
-pub const PRETTY_SUPPORTED_ALIASES: &str = "tgz, tbz, tlz4, txz, tzlma, tsz, tzst";
+pub const PRETTY_SUPPORTED_ALIASES: &str = "tgz, tbz, tlz4, txz, tzlma, tsz, tzst, squashfs";
 
 /// A wrapper around `CompressionFormat` that allows combinations like `tgz`
 #[derive(Debug, Clone)]
diff --git a/tests/snapshots/ui__ui_test_err_decompress_missing_extension_with_rar-1.snap b/tests/snapshots/ui__ui_test_err_decompress_missing_extension_with_rar-1.snap
index 61ffed6..6f4def5 100644
--- a/tests/snapshots/ui__ui_test_err_decompress_missing_extension_with_rar-1.snap
+++ b/tests/snapshots/ui__ui_test_err_decompress_missing_extension_with_rar-1.snap
@@ -6,8 +6,8 @@ expression: "run_ouch(\"ouch decompress a\", dir)"
  - Files with missing extensions: <TMP_DIR>/a
  - Decompression formats are detected automatically from file extension
 
-hint: Supported extensions are: tar, zip, bz, bz2, bz3, gz, lz4, xz, lzma, sz, zst, rar, 7z
-hint: Supported aliases are: tgz, tbz, tlz4, txz, tzlma, tsz, tzst
+hint: Supported extensions are: tar, zip, bz, bz2, bz3, gz, lz4, xz, lzma, sz, zst, rar, 7z, sqfs
+hint: Supported aliases are: tgz, tbz, tlz4, txz, tzlma, tsz, tzst, squashfs
 hint: 
 hint: Alternatively, you can pass an extension to the '--format' flag:
 hint:   ouch decompress <TMP_DIR>/a --format tar.gz
diff --git a/tests/snapshots/ui__ui_test_err_decompress_missing_extension_with_rar-2.snap b/tests/snapshots/ui__ui_test_err_decompress_missing_extension_with_rar-2.snap
index fe1bbf9..05804ed 100644
--- a/tests/snapshots/ui__ui_test_err_decompress_missing_extension_with_rar-2.snap
+++ b/tests/snapshots/ui__ui_test_err_decompress_missing_extension_with_rar-2.snap
@@ -7,5 +7,5 @@ expression: "run_ouch(\"ouch decompress a b.unknown\", dir)"
  - Files with missing extensions: <TMP_DIR>/a
  - Decompression formats are detected automatically from file extension
 
-hint: Supported extensions are: tar, zip, bz, bz2, bz3, gz, lz4, xz, lzma, sz, zst, rar, 7z
-hint: Supported aliases are: tgz, tbz, tlz4, txz, tzlma, tsz, tzst
+hint: Supported extensions are: tar, zip, bz, bz2, bz3, gz, lz4, xz, lzma, sz, zst, rar, 7z, sqfs
+hint: Supported aliases are: tgz, tbz, tlz4, txz, tzlma, tsz, tzst, squashfs
diff --git a/tests/snapshots/ui__ui_test_err_decompress_missing_extension_with_rar-3.snap b/tests/snapshots/ui__ui_test_err_decompress_missing_extension_with_rar-3.snap
index 0ef66a2..3066279 100644
--- a/tests/snapshots/ui__ui_test_err_decompress_missing_extension_with_rar-3.snap
+++ b/tests/snapshots/ui__ui_test_err_decompress_missing_extension_with_rar-3.snap
@@ -6,8 +6,8 @@ expression: "run_ouch(\"ouch decompress b.unknown\", dir)"
  - Files with unsupported extensions: <TMP_DIR>/b.unknown
  - Decompression formats are detected automatically from file extension
 
-hint: Supported extensions are: tar, zip, bz, bz2, bz3, gz, lz4, xz, lzma, sz, zst, rar, 7z
-hint: Supported aliases are: tgz, tbz, tlz4, txz, tzlma, tsz, tzst
+hint: Supported extensions are: tar, zip, bz, bz2, bz3, gz, lz4, xz, lzma, sz, zst, rar, 7z, sqfs
+hint: Supported aliases are: tgz, tbz, tlz4, txz, tzlma, tsz, tzst, squashfs
 hint: 
 hint: Alternatively, you can pass an extension to the '--format' flag:
 hint:   ouch decompress <TMP_DIR>/b.unknown --format tar.gz
diff --git a/tests/snapshots/ui__ui_test_err_format_flag_with_rar-1.snap b/tests/snapshots/ui__ui_test_err_format_flag_with_rar-1.snap
index 5cb36e4..75e4633 100644
--- a/tests/snapshots/ui__ui_test_err_format_flag_with_rar-1.snap
+++ b/tests/snapshots/ui__ui_test_err_format_flag_with_rar-1.snap
@@ -5,8 +5,8 @@ expression: "run_ouch(\"ouch compress input output --format tar.gz.unknown\", di
 [ERROR] Failed to parse `--format tar.gz.unknown`
  - Unsupported extension 'unknown'
 
-hint: Supported extensions are: tar, zip, bz, bz2, bz3, gz, lz4, xz, lzma, sz, zst, rar, 7z
-hint: Supported aliases are: tgz, tbz, tlz4, txz, tzlma, tsz, tzst
+hint: Supported extensions are: tar, zip, bz, bz2, bz3, gz, lz4, xz, lzma, sz, zst, rar, 7z, sqfs
+hint: Supported aliases are: tgz, tbz, tlz4, txz, tzlma, tsz, tzst, squashfs
 hint: 
 hint: Examples:
 hint:   --format tar
diff --git a/tests/snapshots/ui__ui_test_err_format_flag_with_rar-2.snap b/tests/snapshots/ui__ui_test_err_format_flag_with_rar-2.snap
index a1196c7..9009e2f 100644
--- a/tests/snapshots/ui__ui_test_err_format_flag_with_rar-2.snap
+++ b/tests/snapshots/ui__ui_test_err_format_flag_with_rar-2.snap
@@ -5,8 +5,8 @@ expression: "run_ouch(\"ouch compress input output --format targz\", dir)"
 [ERROR] Failed to parse `--format targz`
  - Unsupported extension 'targz'
 
-hint: Supported extensions are: tar, zip, bz, bz2, bz3, gz, lz4, xz, lzma, sz, zst, rar, 7z
-hint: Supported aliases are: tgz, tbz, tlz4, txz, tzlma, tsz, tzst
+hint: Supported extensions are: tar, zip, bz, bz2, bz3, gz, lz4, xz, lzma, sz, zst, rar, 7z, sqfs
+hint: Supported aliases are: tgz, tbz, tlz4, txz, tzlma, tsz, tzst, squashfs
 hint: 
 hint: Examples:
 hint:   --format tar
diff --git a/tests/snapshots/ui__ui_test_err_format_flag_with_rar-3.snap b/tests/snapshots/ui__ui_test_err_format_flag_with_rar-3.snap
index 4269a23..af4b677 100644
--- a/tests/snapshots/ui__ui_test_err_format_flag_with_rar-3.snap
+++ b/tests/snapshots/ui__ui_test_err_format_flag_with_rar-3.snap
@@ -5,8 +5,8 @@ expression: "run_ouch(\"ouch compress input output --format .tar.$#!@.rest\", di
 [ERROR] Failed to parse `--format .tar.$#!@.rest`
  - Unsupported extension '$#!@'
 
-hint: Supported extensions are: tar, zip, bz, bz2, bz3, gz, lz4, xz, lzma, sz, zst, rar, 7z
-hint: Supported aliases are: tgz, tbz, tlz4, txz, tzlma, tsz, tzst
+hint: Supported extensions are: tar, zip, bz, bz2, bz3, gz, lz4, xz, lzma, sz, zst, rar, 7z, sqfs
+hint: Supported aliases are: tgz, tbz, tlz4, txz, tzlma, tsz, tzst, squashfs
 hint: 
 hint: Examples:
 hint:   --format tar