diff --git a/Makefile b/Makefile
index d036771..2663f9f 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,8 @@ OBJ=\
 	$(BUILDDIR)/id3.o \
 	$(BUILDDIR)/midi.o \
 	$(BUILDDIR)/mod.o \
-	$(BUILDDIR)/s3m.o
+	$(BUILDDIR)/s3m.o \
+	$(BUILDDIR)/it.o
 CC=gcc
 CFLAGS=-Wall -std=gnu99 -O2 -fmessage-length=0 -g
 BIN=$(BUILDDIR)/audioextract
@@ -20,7 +21,7 @@ all: $(BIN)
 $(BIN): $(OBJ)
 	$(CC) $(CFLAGS) $(OBJ) -o $@
 
-$(BUILDDIR)/audioextract.o: audioextract.c audioextract.h ogg.h wave.h mpeg.h id3.h midi.h mod.h s3m.h
+$(BUILDDIR)/audioextract.o: audioextract.c audioextract.h ogg.h wave.h mpeg.h id3.h midi.h mod.h s3m.h it.h
 	$(CC) $(CFLAGS) $< -o $@ -c
 
 $(BUILDDIR)/wave.o: wave.c audioextract.h wave.h
@@ -44,6 +45,9 @@ $(BUILDDIR)/mod.o: mod.c audioextract.h mod.h
 $(BUILDDIR)/s3m.o: s3m.c audioextract.h s3m.h
 	$(CC) $(CFLAGS) $< -o $@ -c
 
+$(BUILDDIR)/it.o: it.c audioextract.h it.h
+	$(CC) $(CFLAGS) $< -o $@ -c
+
 install: all
 	install -s -D $(BIN) "$(PREFIX)/bin/audioextract"
 
diff --git a/README.md b/README.md
index b6f6615..c06a0c6 100644
--- a/README.md
+++ b/README.md
@@ -38,11 +38,14 @@ using the `--min-size` one can hopefully extract only real MPEG files.
 	                         default  the default set of formats (AIFF, ID3v2, Ogg, RIFF, MIDI, MOD)
 	                         aiff     big-endian (Apple) wave files
 	                         id3v2    MPEG files with ID3v2 tags at the start
+	                         it       ImpulseTracker files
 	                         midi     MIDI files
-	                         mod      MOD files
+	                         mod      FastTracker files
 	                         mpeg     any MPEG files (e.g. MP3)
 	                         ogg      Ogg files (Vorbis, FLAC, Opus, Theora, etc.)
 	                         riff     little-endian (Windows) wave files
+	                         s3m      ScreamTracker files
+	                         tracker  all tracker files (MOD, S3M, IT)
 	                         wave     both RIFF and AIFF wave files
 
 	                       WARNING: Because MPEG files do not have a nice file magic, using
@@ -57,7 +60,7 @@ using the `--min-size` one can hopefully extract only real MPEG files.
 	                       removed from the set of formats to extract. E.g. extract
 	                       everything except wave files:
 
-	                         ./build/audioextract --formats=all,-wave data.bin
+	                         audioextract --formats=all,-wave data.bin
 
 	-o, --output=DIR       Directory where extracted files should be written. (default: ".")
 	-m, --min-size=SIZE    Minumum size of extracted files (skip smaller). (default: 0)
diff --git a/audioextract.c b/audioextract.c
index 884b5eb..dbc2834 100644
--- a/audioextract.c
+++ b/audioextract.c
@@ -19,6 +19,7 @@
 #include "midi.h"
 #include "mod.h"
 #include "s3m.h"
+#include "it.h"
 
 enum fileformat {
 	NONE  =   0,
@@ -30,13 +31,14 @@ enum fileformat {
 	MIDI  =  32,
 	MOD   =  64,
 	S3M   = 128,
+	IT    = 256,
 // TODO:
-//	IT    = 256,
 //	XM    = 512,
 };
 
-#define ALL_FORMATS     (OGG | RIFF | AIFF | MPEG | ID3v2 | MIDI | MOD | S3M)
-#define DEFAULT_FORMATS (OGG | RIFF | AIFF |        ID3v2 | MIDI | MOD | S3M)
+#define ALL_FORMATS     (OGG | RIFF | AIFF | MPEG | ID3v2 | MIDI | MOD | S3M | IT)
+#define DEFAULT_FORMATS (OGG | RIFF | AIFF |        ID3v2 | MIDI | MOD | S3M | IT)
+#define TRACKER_FORMATS (MOD | S3M | IT)
 
 int usage(int argc, char **argv)
 {
@@ -56,11 +58,14 @@ int usage(int argc, char **argv)
 		"                           default  the default set of formats (AIFF, ID3v2, Ogg, RIFF, MIDI, MOD)\n"
 		"                           aiff     big-endian (Apple) wave files\n"
 		"                           id3v2    MPEG files with ID3v2 tags at the start\n"
+		"                           it       ImpulseTracker files\n"
 		"                           midi     MIDI files\n"
-		"                           mod      MOD files\n"
+		"                           mod      FastTracker files\n"
 		"                           mpeg     any MPEG files (e.g. MP3)\n"
 		"                           ogg      Ogg files (Vorbis, FLAC, Opus, Theora, etc.)\n"
 		"                           riff     little-endian (Windows) wave files\n"
+		"                           s3m      ScreamTracker files\n"
+		"                           tracker  all tracker files (MOD, S3M, IT)\n"
 		"                           wave     both RIFF and AIFF wave files\n"
 		"\n"
 		"                         WARNING: Because MPEG files do not have a nice file magic, using\n"
@@ -128,6 +133,11 @@ const unsigned char *findmagic(const unsigned char *start, const unsigned char *
 			*format = ID3v2;
 			return start;
 		}
+		else if (formats & IT && magic == IT_MAGIC)
+		{
+			*format = IT;
+			return start;
+		}
 		else if (formats & MPEG && IS_MPEG_MAGIC(start))
 		{
 			*format = MPEG;
@@ -388,6 +398,15 @@ int extract(const char *filepath, const char *outdir, size_t minsize, size_t max
 				else ++ ptr;
 				break;
 
+			case IT:
+				if (it_isfile(ptr, end, &length))
+				{
+					WRITE_FILE(ptr, length, "it");
+					ptr += length;
+				}
+				else ++ ptr;
+				break;
+
 			case NONE:
 				++ ptr;
 				break;
@@ -472,6 +491,14 @@ int parse_formats(const char *formats)
 		{
 			mask = S3M;
 		}
+		else if (strncasecmp("it", start, len) == 0)
+		{
+			mask = IT;
+		}
+		else if (strncasecmp("tracker", start, len) == 0)
+		{
+			mask = TRACKER_FORMATS;
+		}
 		else if (strncasecmp("all", start, len) == 0)
 		{
 			mask = ALL_FORMATS;
diff --git a/it.c b/it.c
new file mode 100644
index 0000000..8e6e975
--- /dev/null
+++ b/it.c
@@ -0,0 +1,90 @@
+#include "it.h"
+
+int it_isfile(const unsigned char *start, const unsigned char *end, size_t *lengthptr)
+{
+	size_t input_len = (size_t)(end - start);
+	if (input_len < IT_HEADER_SIZE)
+		return 0;
+
+	if (MAGIC(start) != IT_MAGIC)
+		return 0;
+
+	uint16_t orders      = le16toh(*(uint16_t *)(start + 0x20));
+	uint16_t instruments = le16toh(*(uint16_t *)(start + 0x22));
+	uint16_t samples     = le16toh(*(uint16_t *)(start + 0x24));
+	uint16_t patterns    = le16toh(*(uint16_t *)(start + 0x26));
+
+	size_t length = IT_HEADER_SIZE + orders + instruments * 4 + samples * 4 + patterns * 4;
+
+	if (input_len < length)
+		return 0;
+
+#define UPDATE_LENGTH(len) \
+	{ \
+		size_t _len = (len); \
+		if (_len > length) \
+		{ \
+			length = _len; \
+			if (input_len < length) \
+				return 0; \
+		} \
+	}
+
+	/* scan instruments */
+	for (const uint32_t *para = (const uint32_t *)(start + IT_HEADER_SIZE + orders),
+		*para_end = para + instruments;
+		para < para_end; ++ para)
+	{
+		size_t off = (size_t)le32toh(*para);
+
+		UPDATE_LENGTH(off + IT_INSTRUMENT_SIZE);
+	}
+
+	/* scan samples */
+	for (const uint32_t *para = (const uint32_t *)(start + IT_HEADER_SIZE + orders + instruments * 4),
+		*para_end = para + samples;
+		para < para_end; ++ para)
+	{
+		size_t off = (size_t)le32toh(*para);
+		const unsigned char *ptr = start + off;
+
+		UPDATE_LENGTH(off + IT_SAMPLE_HEADER_SIZE);
+		
+		if (MAGIC(ptr) != IT_SAMPLE_MAGIC)
+			continue;
+
+		uint32_t sample_length  = le32toh(*(uint32_t *)(ptr + 0x30));
+		uint32_t sample_pointer = le32toh(*(uint32_t *)(ptr + 0x48));
+
+		if (sample_length && sample_pointer)
+		{
+			size_t sample_end = sample_pointer + sample_length;
+
+			// there are some IT files out there with truncated samples:
+			if (sample_end > input_len) sample_end = input_len;
+			if (sample_end > length)    length     = sample_end;
+		}
+	}
+	
+	/* scan patterns */
+	for (const uint32_t *para = (const uint32_t *)(start + IT_HEADER_SIZE + orders + instruments * 4 + samples * 4),
+		*para_end = para + patterns;
+		para < para_end; ++ para)
+	{
+		size_t off = (size_t)le32toh(*para);
+		const unsigned char *ptr = start + off;
+
+		UPDATE_LENGTH(off + IT_PATTERN_HEADER_SIZE);
+
+		uint16_t pattern_length = le32toh(*(uint16_t *)ptr);
+		size_t   pattern_end    = off + IT_PATTERN_HEADER_SIZE + pattern_length;
+
+		// there are some IT files out there with truncated patterns:
+		if (pattern_end > input_len) pattern_end = input_len;
+		if (pattern_end > length)    length      = pattern_end;
+	}
+
+	if (lengthptr) *lengthptr = length;
+
+	return 1;
+}
diff --git a/it.h b/it.h
new file mode 100644
index 0000000..b0703d5
--- /dev/null
+++ b/it.h
@@ -0,0 +1,16 @@
+#ifndef AUDIOEXTRACT_IT_H__
+#define AUDIOEXTRACT_IT_H__
+
+#include "audioextract.h"
+
+#define IT_MAGIC            MAGIC("IMPM")
+#define IT_INSTRUMENT_MAGIC MAGIC("IMPI")
+#define IT_SAMPLE_MAGIC     MAGIC("IMPS")
+#define IT_HEADER_SIZE        192
+#define IT_INSTRUMENT_SIZE    554
+#define IT_SAMPLE_HEADER_SIZE  80
+#define IT_PATTERN_HEADER_SIZE  4
+
+int it_isfile(const unsigned char *start, const unsigned char *end, size_t *lengthptr);
+
+#endif /* AUDIOEXTRACT_IT_H__ */