diff --git a/Cargo.lock b/Cargo.lock
index 92ed468a..9f93b108 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -59,6 +59,21 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a2bd12c1caf447e69cd4528f47f94d203fd2582878ecb9e9465484c4148a8223"
 
+[[package]]
+name = "castaway"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0abae9be0aaf9ea96a3b1b8b1b55c602ca751eba1b1500220cea4ecbafe7c0d5"
+dependencies = [
+ "rustversion",
+]
+
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
 [[package]]
 name = "chrono"
 version = "0.4.31"
@@ -68,6 +83,20 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "compact_str"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6050c3a16ddab2e412160b31f2c871015704239bca62f72f6e5f0be631d3f644"
+dependencies = [
+ "castaway",
+ "cfg-if",
+ "itoa",
+ "rustversion",
+ "ryu",
+ "static_assertions",
+]
+
 [[package]]
 name = "darling"
 version = "0.20.3"
@@ -310,6 +339,12 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "rustversion"
+version = "1.0.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "955d28af4278de8121b7ebeb796b6a45735dc01436d898801014aced2773a3d6"
+
 [[package]]
 name = "ryu"
 version = "1.0.15"
@@ -326,6 +361,7 @@ dependencies = [
  "bigdecimal 0.4.2",
  "bytes",
  "chrono",
+ "compact_str",
  "dyn-clone",
  "either",
  "enumset",
@@ -422,6 +458,12 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "static_assertions"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
+
 [[package]]
 name = "syn"
 version = "2.0.38"
diff --git a/schemars/Cargo.toml b/schemars/Cargo.toml
index 264a5c59..ba97fed8 100644
--- a/schemars/Cargo.toml
+++ b/schemars/Cargo.toml
@@ -35,6 +35,7 @@ bigdecimal03 = { version = "0.3", default-features = false, optional = true, pac
 bigdecimal04 = { version = "0.4", default-features = false, optional = true, package = "bigdecimal" }
 enumset = { version = "1.0", optional = true }
 smol_str = { version = "0.1.17", optional = true }
+compact_str = { version = "0.8.0", optional = true }
 semver = { version = "1.0.9", features = ["serde"], optional = true }
 
 [dev-dependencies]
diff --git a/schemars/src/json_schema_impls/compact_str.rs b/schemars/src/json_schema_impls/compact_str.rs
new file mode 100644
index 00000000..8bf88e02
--- /dev/null
+++ b/schemars/src/json_schema_impls/compact_str.rs
@@ -0,0 +1,6 @@
+use crate::gen::SchemaGenerator;
+use crate::schema::*;
+use crate::JsonSchema;
+use compact_str::CompactString;
+
+forward_impl!(CompactString => String);
diff --git a/schemars/src/json_schema_impls/mod.rs b/schemars/src/json_schema_impls/mod.rs
index 0c548eb3..e9e2fcb2 100644
--- a/schemars/src/json_schema_impls/mod.rs
+++ b/schemars/src/json_schema_impls/mod.rs
@@ -50,6 +50,8 @@ mod atomic;
 mod bytes;
 #[cfg(feature = "chrono")]
 mod chrono;
+#[cfg(feature = "compact_str")]
+mod compact_str;
 mod core;
 #[cfg(any(
     feature = "rust_decimal",
diff --git a/schemars/tests/compact_str.rs b/schemars/tests/compact_str.rs
new file mode 100644
index 00000000..61a24c87
--- /dev/null
+++ b/schemars/tests/compact_str.rs
@@ -0,0 +1,8 @@
+mod util;
+use compact_str::CompactString;
+use util::*;
+
+#[test]
+fn smol_str() -> TestResult {
+    test_default_generated_schema::<CompactString>("compact_str")
+}
diff --git a/schemars/tests/expected/compact_str.json b/schemars/tests/expected/compact_str.json
new file mode 100644
index 00000000..42f099a3
--- /dev/null
+++ b/schemars/tests/expected/compact_str.json
@@ -0,0 +1,5 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "String",
+  "type": "string"
+}
\ No newline at end of file