diff --git a/collapse b/collapse
new file mode 100755
index 0000000..c053df6
--- /dev/null
+++ b/collapse
@@ -0,0 +1,23 @@
+#!/usr/bin/env perl
+
+use strict;
+use warnings FATAL => 'all';
+
+my ( $key, @values ) = next_record();
+
+while ( defined $key ) {
+    my ( $next_key, @next_values ) = next_record();    
+    if ( defined $next_key and $next_key eq $key ) {
+        push @values, @next_values;
+    }
+    else {
+        print join( "\t", $key, @values ) . "\n";
+        $key = $next_key;
+        @values = @next_values;
+    }    
+}
+
+sub next_record {
+    defined( local $_ = <> ) or return;
+    chomp; split;
+}
diff --git a/yaml2csv b/yaml2csv
new file mode 100755
index 0000000..c9706c7
--- /dev/null
+++ b/yaml2csv
@@ -0,0 +1,25 @@
+#!/usr/bin/env perl
+
+use strict;
+use warnings FATAL => 'all';
+
+use YAML::Any;
+use CSV::Writer;
+use Getopt::Long;
+
+my @columns;
+
+GetOptions(
+    'columns=s@' => sub {
+        my ( $opt, $value ) = @_;
+        push @columns, split qr{\s*,\s*}, $value;
+    }
+) and @columns > 0
+    or die "Usage: $0 [--columns=...]\n";
+
+my $csv = CSV::Writer->new( columns =>  \@columns );
+$csv->write( $csv->columns );
+
+for my $d ( YAML::Any::LoadFile( \*STDIN ) ) {
+    $csv->write( $d );
+}