diff --git a/Cargo.lock b/Cargo.lock
index a1e3556b27..b44aab8eb9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -70,9 +70,10 @@ dependencies = [
  "bindgen",
  "clap",
  "clap_complete",
- "diff",
+ "owo-colors",
  "prettyplease",
  "shlex",
+ "similar",
  "syn 2.0.18",
  "tempfile",
 ]
@@ -173,12 +174,6 @@ dependencies = [
  "os_str_bytes",
 ]
 
-[[package]]
-name = "diff"
-version = "0.1.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "56254986775e3233ffa9c4d7d3faaf6d36a2c09d30b20687e9f88bc8bafc16c8"
-
 [[package]]
 name = "either"
 version = "1.8.1"
@@ -219,6 +214,17 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "errno"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4bcfec3a70f97c962c307b2d2c56e358cf1d00b558d74262b5f929ee8cc7e73a"
+dependencies = [
+ "errno-dragonfly",
+ "libc",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "errno-dragonfly"
 version = "0.1.2"
@@ -263,12 +269,9 @@ checksum = "2540771e65fc8cb83cd6e8a237f70c319bd5c29f78ed1084ba5d50eeac86f7f9"
 
 [[package]]
 name = "hermit-abi"
-version = "0.2.6"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee512640fe35acbfb4bb779db6f0d80704c2cacfa2e39b601ef3e3f47d1ae4c7"
-dependencies = [
- "libc",
-]
+checksum = "443144c8cdadd93ebf52ddb4056d257f5b52c04d3c804e657d19eb73fc33668b"
 
 [[package]]
 name = "humantime"
@@ -292,19 +295,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e7d6c6f8c91b4b9ed43484ad1a938e393caf35960fce7f82a040497207bd8e9e"
 dependencies = [
  "libc",
- "windows-sys",
+ "windows-sys 0.42.0",
 ]
 
 [[package]]
 name = "is-terminal"
-version = "0.4.2"
+version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28dfb6c8100ccc63462345b67d1bbc3679177c75ee4bf59bf29c8b1d110b8189"
+checksum = "adcf93614601c8129ddf72e2d5633df827ba6551541c6d8c59520a371475be1f"
 dependencies = [
  "hermit-abi",
  "io-lifetimes",
- "rustix",
- "windows-sys",
+ "rustix 0.37.3",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -341,6 +344,12 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f051f77a7c8e6957c0696eac88f26b0117e54f52d3fc682ab19397a8812846a4"
 
+[[package]]
+name = "linux-raw-sys"
+version = "0.3.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ef53942eb7bf7ff43a617b3e2c1c4a5ecf5944a7c1bc12d7ee39bbb15e5c1519"
+
 [[package]]
 name = "log"
 version = "0.4.17"
@@ -402,6 +411,12 @@ version = "6.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b7820b9daea5457c9f21c69448905d723fbd21136ccf521748f23fd49e723ee"
 
+[[package]]
+name = "owo-colors"
+version = "3.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1b04fb49957986fdce4d6ee7a65027d55d4b6d2265e5848bbb507b58ccfdb6f"
+
 [[package]]
 name = "peeking_take_while"
 version = "0.1.2"
@@ -538,11 +553,25 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d4fdebc4b395b7fbb9ab11e462e20ed9051e7b16e42d24042c776eca0ac81b03"
 dependencies = [
  "bitflags 1.3.2",
- "errno",
+ "errno 0.2.8",
  "io-lifetimes",
  "libc",
- "linux-raw-sys",
- "windows-sys",
+ "linux-raw-sys 0.1.4",
+ "windows-sys 0.42.0",
+]
+
+[[package]]
+name = "rustix"
+version = "0.37.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62b24138615de35e32031d041a09032ef3487a616d901ca4db224e7d557efae2"
+dependencies = [
+ "bitflags 1.3.2",
+ "errno 0.3.1",
+ "io-lifetimes",
+ "libc",
+ "linux-raw-sys 0.3.8",
+ "windows-sys 0.45.0",
 ]
 
 [[package]]
@@ -551,6 +580,12 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "43b2853a4d09f215c24cc5489c992ce46052d359b5109343cbafbf26bc62f8a3"
 
+[[package]]
+name = "similar"
+version = "2.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "420acb44afdae038210c99e69aae24109f32f15500aa708e81d46c9f29d55fcf"
+
 [[package]]
 name = "strsim"
 version = "0.10.0"
@@ -588,8 +623,8 @@ dependencies = [
  "cfg-if",
  "fastrand",
  "redox_syscall",
- "rustix",
- "windows-sys",
+ "rustix 0.36.7",
+ "windows-sys 0.42.0",
 ]
 
 [[package]]
@@ -682,56 +717,146 @@ version = "0.42.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
 dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
+ "windows_aarch64_gnullvm 0.42.2",
+ "windows_aarch64_msvc 0.42.2",
+ "windows_i686_gnu 0.42.2",
+ "windows_i686_msvc 0.42.2",
+ "windows_x86_64_gnu 0.42.2",
+ "windows_x86_64_gnullvm 0.42.2",
+ "windows_x86_64_msvc 0.42.2",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.45.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
+dependencies = [
+ "windows-targets 0.42.2",
 ]
 
+[[package]]
+name = "windows-sys"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
+dependencies = [
+ "windows-targets 0.48.1",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071"
+dependencies = [
+ "windows_aarch64_gnullvm 0.42.2",
+ "windows_aarch64_msvc 0.42.2",
+ "windows_i686_gnu 0.42.2",
+ "windows_i686_msvc 0.42.2",
+ "windows_x86_64_gnu 0.42.2",
+ "windows_x86_64_gnullvm 0.42.2",
+ "windows_x86_64_msvc 0.42.2",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.48.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05d4b17490f70499f20b9e791dcf6a299785ce8af4d709018206dc5b4953e95f"
+dependencies = [
+ "windows_aarch64_gnullvm 0.48.0",
+ "windows_aarch64_msvc 0.48.0",
+ "windows_i686_gnu 0.48.0",
+ "windows_i686_msvc 0.48.0",
+ "windows_x86_64_gnu 0.48.0",
+ "windows_x86_64_gnullvm 0.48.0",
+ "windows_x86_64_msvc 0.48.0",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
+
 [[package]]
 name = "windows_aarch64_gnullvm"
-version = "0.42.1"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91ae572e1b79dba883e0d315474df7305d12f569b400fcf90581b06062f7e1bc"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c9864e83243fdec7fc9c5444389dcbbfd258f745e7853198f365e3c4968a608"
+checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
 
 [[package]]
 name = "windows_aarch64_msvc"
-version = "0.42.1"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2ef27e0d7bdfcfc7b868b317c1d32c641a6fe4629c171b8928c7b08d98d7cf3"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c8b1b673ffc16c47a9ff48570a9d85e25d265735c503681332589af6253c6c7"
+checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
 
 [[package]]
 name = "windows_i686_gnu"
-version = "0.42.1"
+version = "0.48.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "de3887528ad530ba7bdbb1faa8275ec7a1155a45ffa57c37993960277145d640"
+checksum = "622a1962a7db830d6fd0a69683c80a18fda201879f0f447f065a3b7467daa241"
 
 [[package]]
 name = "windows_i686_msvc"
-version = "0.42.1"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf4d1122317eddd6ff351aa852118a2418ad4214e6613a50e0191f7004372605"
+checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4542c6e364ce21bf45d69fdd2a8e455fa38d316158cfd43b3ac1c5b1b19f8e00"
 
 [[package]]
 name = "windows_x86_64_gnu"
-version = "0.42.1"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c1040f221285e17ebccbc2591ffdc2d44ee1f9186324dd3e84e99ac68d699c45"
+checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca2b8a661f7628cbd23440e50b05d705db3686f894fc9580820623656af974b1"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
-version = "0.42.1"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7896dbc1f41e08872e9d5e8f8baa8fdd2677f29468c4e156210174edc7f7b953"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "628bfdf232daa22b0d64fdb62b09fcc36bb01f05a3939e20ab73aaf9470d0463"
+checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
 
 [[package]]
 name = "windows_x86_64_msvc"
-version = "0.42.1"
+version = "0.48.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "447660ad36a13288b1db4d4248e857b510e8c3a225c822ba4fb748c0aafecffd"
+checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
 
 [[package]]
 name = "yansi-term"
diff --git a/bindgen-tests/Cargo.toml b/bindgen-tests/Cargo.toml
index 5bf8ac635e..d3907c3619 100644
--- a/bindgen-tests/Cargo.toml
+++ b/bindgen-tests/Cargo.toml
@@ -8,11 +8,12 @@ publish = false
 bindgen = { path = "../bindgen", features = ["__cli", "experimental"] }
 clap = { version = "4", features = ["derive"] }
 clap_complete = "4"
-diff = "0.1"
 shlex = "1"
 prettyplease = { version = "0.2.7", features = ["verbatim"] }
 syn = { version = "2.0" }
 tempfile = "3"
+similar = { version = "2.2.1", features = ["inline"] }
+owo-colors = "3.5.0"
 
 [features]
 logging = ["bindgen/logging"]
diff --git a/bindgen-tests/tests/tests.rs b/bindgen-tests/tests/tests.rs
index b92a457be3..1913b874f0 100644
--- a/bindgen-tests/tests/tests.rs
+++ b/bindgen-tests/tests/tests.rs
@@ -1,12 +1,14 @@
 extern crate bindgen;
 extern crate clap;
-extern crate diff;
 #[cfg(feature = "logging")]
 extern crate env_logger;
 extern crate shlex;
 
 use bindgen::{clang_version, Builder};
+use owo_colors::{OwoColorize, Style};
+use similar::{ChangeTag, TextDiff};
 use std::env;
+use std::fmt;
 use std::fs;
 use std::io::{BufRead, BufReader, Error, ErrorKind, Read, Write};
 use std::path::{Path, PathBuf};
@@ -52,13 +54,7 @@ fn error_diff_mismatch(
         println!("+++ generated from: {:?}", header);
     }
 
-    for diff in diff::lines(expected, actual) {
-        match diff {
-            diff::Result::Left(l) => println!("-{}", l),
-            diff::Result::Both(l, _) => println!(" {}", l),
-            diff::Result::Right(r) => println!("+{}", r),
-        }
-    }
+    show_diff(expected, actual);
 
     if should_overwrite_expected() {
         // Overwrite the expectation with actual output.
@@ -84,6 +80,52 @@ fn error_diff_mismatch(
     Err(Error::new(ErrorKind::Other, "Header and binding differ! Run with BINDGEN_OVERWRITE_EXPECTED=1 in the environment to automatically overwrite the expectation or with BINDGEN_TESTS_DIFFTOOL=meld to do this manually."))
 }
 
+struct Line(Option<usize>);
+
+impl fmt::Display for Line {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        match self.0 {
+            None => write!(f, "    "),
+            Some(idx) => write!(f, "{:<4}", idx + 1),
+        }
+    }
+}
+
+fn show_diff(old: &str, new: &str) {
+    let diff = TextDiff::from_lines(old, new);
+    for (count, group) in diff.grouped_ops(3).iter().enumerate() {
+        if count > 0 {
+            let message = format!("(chunk {count}/n)");
+            println!("{}", message.cyan().dimmed());
+        }
+        for diff_op in group {
+            for change in diff.iter_inline_changes(diff_op) {
+                let (sign, color) = match change.tag() {
+                    ChangeTag::Delete => ("-", Style::new().red()),
+                    ChangeTag::Insert => ("+", Style::new().green()),
+                    ChangeTag::Equal => (" ", Style::new()),
+                };
+                print!(
+                    "{}{}| {}",
+                    Line(change.old_index()).style(color).dimmed(),
+                    Line(change.new_index()).style(color).dimmed(),
+                    sign.style(color).bold(),
+                );
+                for (emphasized, text) in change.iter_strings_lossy() {
+                    if emphasized {
+                        print!("{}", text.style(color).underline());
+                    } else {
+                        print!("{}", text.style(color));
+                    }
+                }
+                if change.missing_newline() {
+                    println!();
+                }
+            }
+        }
+    }
+}
+
 fn compare_generated_header(
     header: &Path,
     builder: BuilderState,