diff --git a/tools/.gitignore b/tools/.gitignore
index 849c650..835e67a 100644
--- a/tools/.gitignore
+++ b/tools/.gitignore
@@ -1,2 +1,3 @@
 GccFindHit
 hunk2aout
+*.pyc
diff --git a/tools/filedb.py b/tools/filedb.py
new file mode 100755
index 0000000..6022797
--- /dev/null
+++ b/tools/filedb.py
@@ -0,0 +1,102 @@
+#!/usr/bin/env python2.7 -B
+
+import logging
+import json
+import os
+import sha
+import sys
+from UserDict import UserDict
+
+from objtools import ar, aout, hunk
+
+
+def ShaSum(data):
+  return sha.new(data).digest().encode('hex')
+
+
+class Database(UserDict):
+  def __init__(self, topdir):
+    UserDict.__init__(self)
+    self.topdir = topdir
+
+  def name(self, filepath):
+    return filepath[len(self.topdir):]
+
+  def addFile(self, filepath, filetype):
+    with open(filepath) as f:
+      cksum = ShaSum(f.read())
+    size = os.path.getsize(filepath)
+    name = self.name(filepath)
+    self.data[name] = {'size': size, 'sha': cksum, 'type': filetype}
+
+  def addArchive(self, filepath, archive):
+    objects = [(obj.name, {'size': len(obj.data), 'sha': ShaSum(obj.data)})
+               for obj in archive]
+    name = self.name(filepath)
+    self.data[name] = {'objects': dict(objects), 'type': 'archive'}
+
+  def dumps(self):
+    return json.dumps(self.data, indent=2, sort_keys=True)
+
+  def readAout(self, filepath):
+    try:
+      aout.ReadFile(filepath)
+    except ValueError:
+      return False
+
+    self.addFile(filepath, 'a.out')
+    return True
+
+  def readHunk(self, filepath):
+    try:
+      hs = hunk.ReadFile(filepath)
+    except ValueError:
+      return False
+
+    if hs[0].type == 'HUNK_UNIT':
+      units = sum(1 for h in hs if h.type == 'HUNK_UNIT')
+      if units > 1:
+        filetype = 'ALink'
+      else:
+        filetype = 'Amiga Hunk object'
+    elif hs[0].type == 'HUNK_LIB':
+      filetype = 'BLink'
+    elif hs[0].type == 'HUNK_HEADER':
+      filetype = 'Amiga Hunk executable'
+
+    self.addFile(filepath, filetype)
+    return True
+
+  def readAr(self, filepath):
+    try:
+      archive = ar.ReadFile(filepath)
+    except ValueError:
+      return False
+
+    self.addArchive(filepath, archive)
+    return True
+
+  def build(self):
+    for path, _, filenames in os.walk(self.topdir):
+      for filename in filenames:
+        filepath = os.path.join(path, filename)
+
+        if os.path.islink(filepath):
+          continue
+
+        if self.readAout(filepath):
+          continue
+
+        if self.readHunk(filepath):
+          continue
+
+        if self.readAr(filepath):
+          continue
+
+
+if __name__ == '__main__':
+  logging.basicConfig()
+
+  db = Database(sys.argv[1])
+  db.build()
+  print db.dumps()