diff --git a/jsroot/jsroot_reader.mjs b/jsroot/jsroot_reader.mjs
index daffa75..6a5fd8e 100644
--- a/jsroot/jsroot_reader.mjs
+++ b/jsroot/jsroot_reader.mjs
@@ -98,3 +98,37 @@ export function floatToHex(num) {
 
   return (sign ? "-" : "") + "0x" + leading + frac + "p" + expStr;
 }
+
+export function sortArrayOfNumbers(arr) {
+  return arr.sort((a, b) => a - b);
+}
+
+export function sortDeep(obj) {
+  sortArrayOfNumbers(obj); // sort nums inside array
+
+  obj.forEach((value) => { if (Array.isArray(value)) sortArrayOfNumbers(value); }); // sort elements inside inner array
+
+  obj.sort((a, b) => {
+    const len = Math.min(a.length, b.length);
+    for (let i = 0; i < len; i++) {
+      if (a[i] !== b[i]) return a[i] - b[i];
+    }
+    return a.length - b.length;
+  });
+
+  return obj;
+}
+
+export function pairArrayToMap(arr) {
+  // sort by key
+  arr.sort((a, b) =>
+    String(a.first).localeCompare(String(b.first)),
+  );
+
+  return Object.fromEntries(
+    arr.map((p) => [
+      p.first,
+      Array.isArray(p.second) ? pairArrayToMap(p.second) : p.second,
+    ]),
+  );
+}
diff --git a/jsroot/types/map/README.md b/jsroot/types/map/README.md
new file mode 100644
index 0000000..5a2277b
--- /dev/null
+++ b/jsroot/types/map/README.md
@@ -0,0 +1,4 @@
+# `std::map`
+
+- [`fundamental`](fundamental): `std::map<std::string, std::int32_t>`
+- [`nested`](nested): `std::map<std::string, std::map<std::string, std::int32_t>>`
diff --git a/jsroot/types/map/fundamental/read.mjs b/jsroot/types/map/fundamental/read.mjs
new file mode 100644
index 0000000..6eda36e
--- /dev/null
+++ b/jsroot/types/map/fundamental/read.mjs
@@ -0,0 +1,10 @@
+import { read, pairArrayToMap } from "../../../jsroot_reader.mjs";
+
+const fields = ["Index32", "Index64", "SplitIndex32", "SplitIndex64"];
+
+const [
+  input = "types.map.fundamental.root",
+  output = "types.map.fundamental.json",
+] = process.argv.slice(2);
+
+read(input, output, fields, pairArrayToMap);
diff --git a/jsroot/types/map/nested/read.mjs b/jsroot/types/map/nested/read.mjs
new file mode 100644
index 0000000..9de8e5c
--- /dev/null
+++ b/jsroot/types/map/nested/read.mjs
@@ -0,0 +1,8 @@
+import { read, pairArrayToMap } from "../../../jsroot_reader.mjs";
+
+const fields = ["Index32", "Index64", "SplitIndex32", "SplitIndex64"];
+
+const [input = "types.map.nested.root", output = "types.map.nested.json"] =
+  process.argv.slice(2);
+
+read(input, output, fields, pairArrayToMap);
diff --git a/jsroot/types/multimap/README.md b/jsroot/types/multimap/README.md
new file mode 100644
index 0000000..f6878c4
--- /dev/null
+++ b/jsroot/types/multimap/README.md
@@ -0,0 +1,4 @@
+# `std::multimap`
+
+- [`fundamental`](fundamental): `std::multimap<std::string, ::int32_t>`
+- [`nested`](nested): `std::multimap<std::string, std::multimap<std::string, std::int32_t>>`
diff --git a/jsroot/types/multimap/fundamental/read.mjs b/jsroot/types/multimap/fundamental/read.mjs
new file mode 100644
index 0000000..8b7897c
--- /dev/null
+++ b/jsroot/types/multimap/fundamental/read.mjs
@@ -0,0 +1,10 @@
+import { read, pairArrayToMap } from "../../../jsroot_reader.mjs";
+
+const fields = ["Index32", "Index64", "SplitIndex32", "SplitIndex64"];
+
+const [
+  input = "types.multimap.fundamental.root",
+  output = "types.multimap.fundamental.json",
+] = process.argv.slice(2);
+
+read(input, output, fields, pairArrayToMap);
diff --git a/jsroot/types/multimap/nested/read.mjs b/jsroot/types/multimap/nested/read.mjs
new file mode 100644
index 0000000..93380ef
--- /dev/null
+++ b/jsroot/types/multimap/nested/read.mjs
@@ -0,0 +1,10 @@
+import { read, pairArrayToMap } from "../../../jsroot_reader.mjs";
+
+const fields = ["Index32", "Index64", "SplitIndex32", "SplitIndex64"];
+
+const [
+  input = "types.multimap.nested.root",
+  output = "types.multimap.nested.json",
+] = process.argv.slice(2);
+
+read(input, output, fields, pairArrayToMap);
diff --git a/jsroot/types/multiset/README.md b/jsroot/types/multiset/README.md
new file mode 100644
index 0000000..637bdcf
--- /dev/null
+++ b/jsroot/types/multiset/README.md
@@ -0,0 +1,4 @@
+# `std::multiset`
+
+ * [`fundamental`](fundamental): `std::multiset<std::int32_t>`
+ * [`nested`](nested): `std::multiset<std::multiset<std::int32_t>>`
diff --git a/jsroot/types/multiset/fundamental/read.mjs b/jsroot/types/multiset/fundamental/read.mjs
new file mode 100644
index 0000000..13300a5
--- /dev/null
+++ b/jsroot/types/multiset/fundamental/read.mjs
@@ -0,0 +1,10 @@
+import { read, sortArrayOfNumbers } from "../../../jsroot_reader.mjs";
+
+const fields = ["Index32", "Index64", "SplitIndex32", "SplitIndex64"];
+
+const [
+  input = "types.multiset.fundamental.root",
+  output = "types.multiset.fundamental.json",
+] = process.argv.slice(2);
+
+read(input, output, fields, sortArrayOfNumbers);
diff --git a/jsroot/types/multiset/nested/read.mjs b/jsroot/types/multiset/nested/read.mjs
new file mode 100644
index 0000000..264bf98
--- /dev/null
+++ b/jsroot/types/multiset/nested/read.mjs
@@ -0,0 +1,10 @@
+import { read, sortDeep } from "../../../jsroot_reader.mjs";
+
+const fields = ["Index32", "Index64", "SplitIndex32", "SplitIndex64"];
+
+const [
+  input = "types.set.multinested.root",
+  output = "types.multiset.nested.json",
+] = process.argv.slice(2);
+
+read(input, output, fields, sortDeep);
diff --git a/jsroot/types/set/README.md b/jsroot/types/set/README.md
new file mode 100644
index 0000000..59141d6
--- /dev/null
+++ b/jsroot/types/set/README.md
@@ -0,0 +1,4 @@
+# `std::set`
+
+ * [`fundamental`](fundamental): `std::set<std::int32_t>`
+ * [`nested`](nested): `std::set<std::set<std::int32_t>>`
diff --git a/jsroot/types/set/fundamental/read.mjs b/jsroot/types/set/fundamental/read.mjs
new file mode 100644
index 0000000..39855fa
--- /dev/null
+++ b/jsroot/types/set/fundamental/read.mjs
@@ -0,0 +1,10 @@
+import { read, sortArrayOfNumbers } from "../../../jsroot_reader.mjs";
+
+const fields = ["Index32", "Index64", "SplitIndex32", "SplitIndex64"];
+
+const [
+  input = "types.set.fundamental.root",
+  output = "types.set.fundamental.json",
+] = process.argv.slice(2);
+
+read(input, output, fields, sortArrayOfNumbers);
diff --git a/jsroot/types/set/nested/read.mjs b/jsroot/types/set/nested/read.mjs
new file mode 100644
index 0000000..fc15f97
--- /dev/null
+++ b/jsroot/types/set/nested/read.mjs
@@ -0,0 +1,8 @@
+import { read, sortDeep } from "../../../jsroot_reader.mjs";
+
+const fields = ["Index32", "Index64", "SplitIndex32", "SplitIndex64"];
+
+const [input = "types.set.nested.root", output = "types.set.nested.json"] =
+  process.argv.slice(2);
+
+read(input, output, fields, sortDeep);
diff --git a/jsroot/types/unordered_map/README.md b/jsroot/types/unordered_map/README.md
new file mode 100644
index 0000000..5938a8b
--- /dev/null
+++ b/jsroot/types/unordered_map/README.md
@@ -0,0 +1,4 @@
+# `std::unordered_map`
+
+- [`fundamental`](fundamental): `std::unordered_map<std::string, std::int32_t>`
+- [`nested`](nested): `std::unordered_map<std::string, std::unordered_map<std::string, std::int32_t>>`
diff --git a/jsroot/types/unordered_map/fundamental/read.mjs b/jsroot/types/unordered_map/fundamental/read.mjs
new file mode 100644
index 0000000..15b7648
--- /dev/null
+++ b/jsroot/types/unordered_map/fundamental/read.mjs
@@ -0,0 +1,10 @@
+import { read, pairArrayToMap } from "../../../jsroot_reader.mjs";
+
+const fields = ["Index32", "Index64", "SplitIndex32", "SplitIndex64"];
+
+const [
+  input = "types.unordered_map.fundamental.root",
+  output = "types.unordered_map.fundamental.json",
+] = process.argv.slice(2);
+
+read(input, output, fields, pairArrayToMap);
diff --git a/jsroot/types/unordered_map/nested/read.mjs b/jsroot/types/unordered_map/nested/read.mjs
new file mode 100644
index 0000000..774104d
--- /dev/null
+++ b/jsroot/types/unordered_map/nested/read.mjs
@@ -0,0 +1,10 @@
+import { read, pairArrayToMap } from "../../../jsroot_reader.mjs";
+
+const fields = ["Index32", "Index64", "SplitIndex32", "SplitIndex64"];
+
+const [
+  input = "types.unordered_map.nested.root",
+  output = "types.unordered_map.nested.json",
+] = process.argv.slice(2);
+
+read(input, output, fields, pairArrayToMap);
diff --git a/jsroot/types/unordered_multimap/README.md b/jsroot/types/unordered_multimap/README.md
new file mode 100644
index 0000000..5938a8b
--- /dev/null
+++ b/jsroot/types/unordered_multimap/README.md
@@ -0,0 +1,4 @@
+# `std::unordered_map`
+
+- [`fundamental`](fundamental): `std::unordered_map<std::string, std::int32_t>`
+- [`nested`](nested): `std::unordered_map<std::string, std::unordered_map<std::string, std::int32_t>>`
diff --git a/jsroot/types/unordered_multimap/fundamental/read.mjs b/jsroot/types/unordered_multimap/fundamental/read.mjs
new file mode 100644
index 0000000..25e83b6
--- /dev/null
+++ b/jsroot/types/unordered_multimap/fundamental/read.mjs
@@ -0,0 +1,10 @@
+import { read, pairArrayToMap } from "../../../jsroot_reader.mjs";
+
+const fields = ["Index32", "Index64", "SplitIndex32", "SplitIndex64"];
+
+const [
+  input = "types.unordered_multimap.fundamental.root",
+  output = "types.unordered_multimap.fundamental.json",
+] = process.argv.slice(2);
+
+read(input, output, fields, pairArrayToMap);
diff --git a/jsroot/types/unordered_multimap/nested/read.mjs b/jsroot/types/unordered_multimap/nested/read.mjs
new file mode 100644
index 0000000..562475f
--- /dev/null
+++ b/jsroot/types/unordered_multimap/nested/read.mjs
@@ -0,0 +1,10 @@
+import { read, pairArrayToMap } from "../../../jsroot_reader.mjs";
+
+const fields = ["Index32", "Index64", "SplitIndex32", "SplitIndex64"];
+
+const [
+  input = "types.unordered_multimap.nested.root",
+  output = "types.unordered_multimap.nested.json",
+] = process.argv.slice(2);
+
+read(input, output, fields, pairArrayToMap);
diff --git a/jsroot/types/unordered_multiset/README.md b/jsroot/types/unordered_multiset/README.md
new file mode 100644
index 0000000..21eb0a2
--- /dev/null
+++ b/jsroot/types/unordered_multiset/README.md
@@ -0,0 +1,4 @@
+# `std::unordered_multiset`
+
+ * [`fundamental`](fundamental): `std::unordered_multiset<std::int32_t>`
+ * [`nested`](nested): `std::unordered_multiset<std::unordered_multiset<std::int32_t>>`
diff --git a/jsroot/types/unordered_multiset/fundamental/read.mjs b/jsroot/types/unordered_multiset/fundamental/read.mjs
new file mode 100644
index 0000000..e221a34
--- /dev/null
+++ b/jsroot/types/unordered_multiset/fundamental/read.mjs
@@ -0,0 +1,10 @@
+import { read, sortArrayOfNumbers } from "../../../jsroot_reader.mjs";
+
+const fields = ["Index32", "Index64", "SplitIndex32", "SplitIndex64"];
+
+const [
+  input = "types.unordered_multiset.fundamental.root",
+  output = "types.unordered_multiset.fundamental.json",
+] = process.argv.slice(2);
+
+read(input, output, fields, sortArrayOfNumbers);
diff --git a/jsroot/types/unordered_multiset/nested/read.mjs b/jsroot/types/unordered_multiset/nested/read.mjs
new file mode 100644
index 0000000..1879e8f
--- /dev/null
+++ b/jsroot/types/unordered_multiset/nested/read.mjs
@@ -0,0 +1,10 @@
+import { read, sortDeep } from "../../../jsroot_reader.mjs";
+
+const fields = ["Index32", "Index64", "SplitIndex32", "SplitIndex64"];
+
+const [
+  input = "types.unordered_multiset.nested.root",
+  output = "types.unordered_multiset.nested.json",
+] = process.argv.slice(2);
+
+read(input, output, fields, sortDeep);
diff --git a/jsroot/types/unordered_set/README.md b/jsroot/types/unordered_set/README.md
new file mode 100644
index 0000000..3a8ff4b
--- /dev/null
+++ b/jsroot/types/unordered_set/README.md
@@ -0,0 +1,4 @@
+# `std::unordered_set`
+
+ * [`fundamental`](fundamental): `std::unordered_set<std::int32_t>`
+ * [`nested`](nested): `std::unordered_set<std::unordered_set<std::int32_t>>`
diff --git a/jsroot/types/unordered_set/fundamental/read.mjs b/jsroot/types/unordered_set/fundamental/read.mjs
new file mode 100644
index 0000000..28fc7f7
--- /dev/null
+++ b/jsroot/types/unordered_set/fundamental/read.mjs
@@ -0,0 +1,10 @@
+import { read, sortArrayOfNumbers } from "../../../jsroot_reader.mjs";
+
+const fields = ["Index32", "Index64", "SplitIndex32", "SplitIndex64"];
+
+const [
+  input = "types.unordered_set.fundamental.root",
+  output = "types.unordered_set.fundamental.json",
+] = process.argv.slice(2);
+
+read(input, output, fields, sortArrayOfNumbers);
diff --git a/jsroot/types/unordered_set/nested/read.mjs b/jsroot/types/unordered_set/nested/read.mjs
new file mode 100644
index 0000000..7b0e9a6
--- /dev/null
+++ b/jsroot/types/unordered_set/nested/read.mjs
@@ -0,0 +1,10 @@
+import { read, sortDeep } from "../../../jsroot_reader.mjs";
+
+const fields = ["Index32", "Index64", "SplitIndex32", "SplitIndex64"];
+
+const [
+  input = "types.unordered_set.nested.root",
+  output = "types.unordered_set.nested.json",
+] = process.argv.slice(2);
+
+read(input, output, fields, sortDeep);