diff --git a/.gitignore b/.gitignore
index 3e7a542cc58..aedc2d91aed 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,5 @@ package-lock.json
 npm-shrinkwrap.json
 yarn.lock
 *.d.ts
+/publish
+/publish.exe
diff --git a/Cargo.toml b/Cargo.toml
index e1f1079dcf8..6ca9412ecf7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen"
-version = "0.2.17"
+version = "0.2.18"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 readme = "README.md"
@@ -28,15 +28,15 @@ nightly = []
 xxx_debug_only_print_generated_code = ["wasm-bindgen-macro/xxx_debug_only_print_generated_code"]
 
 [dependencies]
-wasm-bindgen-macro = { path = "crates/macro", version = "=0.2.17" }
+wasm-bindgen-macro = { path = "crates/macro", version = "=0.2.18" }
 serde = { version = "1.0", optional = true }
 serde_json = { version = "1.0", optional = true }
 
 [target.'cfg(target_arch = "wasm32")'.dev-dependencies]
-wasm-bindgen-test = { path = 'crates/test', version = '=0.2.17' }
+wasm-bindgen-test = { path = 'crates/test', version = '=0.2.18' }
 serde_derive = "1.0"
-wasm-bindgen-test-crate-a = { path = 'tests/crates/a' }
-wasm-bindgen-test-crate-b = { path = 'tests/crates/b' }
+wasm-bindgen-test-crate-a = { path = 'tests/crates/a', version = '0.1' }
+wasm-bindgen-test-crate-b = { path = 'tests/crates/b', version = '0.1' }
 
 [workspace]
 members = [
diff --git a/crates/backend/Cargo.toml b/crates/backend/Cargo.toml
index 7d61d9ae232..f2bc2839843 100644
--- a/crates/backend/Cargo.toml
+++ b/crates/backend/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-backend"
-version = "0.2.17"
+version = "0.2.18"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/backend"
@@ -21,4 +21,4 @@ proc-macro2 = "0.4.8"
 quote = '0.6'
 serde_json = "1.0"
 syn = { version = '0.14', features = ['full', 'visit'] }
-wasm-bindgen-shared = { path = "../shared", version = "=0.2.17" }
+wasm-bindgen-shared = { path = "../shared", version = "=0.2.18" }
diff --git a/crates/cli-support/Cargo.toml b/crates/cli-support/Cargo.toml
index 40102d7dd62..f666236324f 100644
--- a/crates/cli-support/Cargo.toml
+++ b/crates/cli-support/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-cli-support"
-version = "0.2.17"
+version = "0.2.18"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/cli-support"
@@ -17,6 +17,6 @@ parity-wasm = "0.31"
 serde = "1.0"
 serde_json = "1.0"
 tempfile = "3.0"
-wasm-bindgen-shared = { path = "../shared", version = '=0.2.17' }
-wasm-bindgen-wasm-interpreter = { path = "../wasm-interpreter", version = '=0.2.17' }
+wasm-bindgen-shared = { path = "../shared", version = '=0.2.18' }
+wasm-bindgen-wasm-interpreter = { path = "../wasm-interpreter", version = '=0.2.18' }
 wasm-gc-api = "0.1.9"
diff --git a/crates/cli/Cargo.toml b/crates/cli/Cargo.toml
index 7f4291fa171..8cfe2ad797d 100644
--- a/crates/cli/Cargo.toml
+++ b/crates/cli/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-cli"
-version = "0.2.17"
+version = "0.2.18"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/cli"
@@ -23,8 +23,8 @@ rouille = { version = "2.1.0", default-features = false }
 serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0"
-wasm-bindgen-cli-support = { path = "../cli-support", version = "=0.2.17" }
-wasm-bindgen-shared = { path = "../shared", version = "=0.2.17" }
+wasm-bindgen-cli-support = { path = "../cli-support", version = "=0.2.18" }
+wasm-bindgen-shared = { path = "../shared", version = "=0.2.18" }
 openssl = { version = '0.10.11', optional = true }
 
 [features]
diff --git a/crates/futures/Cargo.toml b/crates/futures/Cargo.toml
index 1e8fadabb8a..f73def61faf 100644
--- a/crates/futures/Cargo.toml
+++ b/crates/futures/Cargo.toml
@@ -7,12 +7,12 @@ license = "MIT/Apache-2.0"
 name = "wasm-bindgen-futures"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/futures"
 readme = "./README.md"
-version = "0.2.17"
+version = "0.2.18"
 
 [dependencies]
 futures = "0.1.20"
-js-sys = { path = "../js-sys", version = '0.2.1' }
-wasm-bindgen = { path = "../..", version = '0.2.17' }
+js-sys = { path = "../js-sys", version = '0.2.3' }
+wasm-bindgen = { path = "../..", version = '0.2.18' }
 
 [target.'cfg(target_arch = "wasm32")'.dev-dependencies]
-wasm-bindgen-test = { path = '../test', version = '0.2.17' }
+wasm-bindgen-test = { path = '../test', version = '0.2.18' }
diff --git a/crates/js-sys/Cargo.toml b/crates/js-sys/Cargo.toml
index fada74bc8f6..33ad544d4a2 100644
--- a/crates/js-sys/Cargo.toml
+++ b/crates/js-sys/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "js-sys"
-version = "0.2.2"
+version = "0.2.3"
 authors = ["The wasm-bindgen Developers"]
 readme = "./README.md"
 categories = ["wasm"]
@@ -18,9 +18,9 @@ test = false
 doctest = false
 
 [dependencies]
-wasm-bindgen = { path = "../..", version = "0.2.17" }
+wasm-bindgen = { path = "../..", version = "0.2.18" }
 
 [target.'cfg(target_arch = "wasm32")'.dev-dependencies]
 futures = "0.1.20"
-wasm-bindgen-test = { path = '../test', version = '=0.2.17' }
-wasm-bindgen-futures = { path = '../futures', version = '=0.2.17' }
+wasm-bindgen-test = { path = '../test', version = '=0.2.18' }
+wasm-bindgen-futures = { path = '../futures', version = '=0.2.18' }
diff --git a/crates/macro-support/Cargo.toml b/crates/macro-support/Cargo.toml
index 49c867d463d..0c0156af902 100644
--- a/crates/macro-support/Cargo.toml
+++ b/crates/macro-support/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-macro-support"
-version = "0.2.17"
+version = "0.2.18"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/macro-support"
@@ -18,5 +18,5 @@ extra-traits = ["syn/extra-traits"]
 syn = { version = '0.14', features = ['full'] }
 quote = '0.6'
 proc-macro2 = "0.4.9"
-wasm-bindgen-backend = { path = "../backend", version = "=0.2.17" }
-wasm-bindgen-shared = { path = "../shared", version = "=0.2.17" }
+wasm-bindgen-backend = { path = "../backend", version = "=0.2.18" }
+wasm-bindgen-shared = { path = "../shared", version = "=0.2.18" }
diff --git a/crates/macro/Cargo.toml b/crates/macro/Cargo.toml
index 2f46fc16a9a..2c4b4f03d52 100644
--- a/crates/macro/Cargo.toml
+++ b/crates/macro/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-macro"
-version = "0.2.17"
+version = "0.2.18"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/macro"
@@ -18,5 +18,5 @@ spans = ["wasm-bindgen-macro-support/spans"]
 xxx_debug_only_print_generated_code = []
 
 [dependencies]
-wasm-bindgen-macro-support = { path = "../macro-support", version = "=0.2.17" }
+wasm-bindgen-macro-support = { path = "../macro-support", version = "=0.2.18" }
 quote = "0.6"
diff --git a/crates/shared/Cargo.toml b/crates/shared/Cargo.toml
index 9b6d9b804c7..eebeb8d1985 100644
--- a/crates/shared/Cargo.toml
+++ b/crates/shared/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-shared"
-version = "0.2.17"
+version = "0.2.18"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/shared"
diff --git a/crates/test-macro/Cargo.toml b/crates/test-macro/Cargo.toml
index 14271bb4206..3b9a3914a5f 100644
--- a/crates/test-macro/Cargo.toml
+++ b/crates/test-macro/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-test-macro"
-version = "0.2.17"
+version = "0.2.18"
 authors = ["The wasm-bindgen Developers"]
 description = "Internal testing macro for wasm-bindgen"
 license = "MIT/Apache-2.0"
diff --git a/crates/test/Cargo.toml b/crates/test/Cargo.toml
index 274cae208c4..e043d09f318 100644
--- a/crates/test/Cargo.toml
+++ b/crates/test/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-test"
-version = "0.2.17"
+version = "0.2.18"
 authors = ["The wasm-bindgen Developers"]
 description = "Internal testing crate for wasm-bindgen"
 license = "MIT/Apache-2.0"
@@ -9,11 +9,11 @@ repository = "https://github.com/rustwasm/wasm-bindgen"
 [dependencies]
 console_error_panic_hook = '0.1'
 futures = "0.1"
-js-sys = { path = '../js-sys', version = '0.2.1' }
+js-sys = { path = '../js-sys', version = '0.2.3' }
 scoped-tls = "0.1"
-wasm-bindgen = { path = '../..', version = '0.2.17' }
-wasm-bindgen-futures = { path = '../futures', version = '0.2.17' }
-wasm-bindgen-test-macro = { path = '../test-macro', version = '=0.2.17' }
+wasm-bindgen = { path = '../..', version = '0.2.18' }
+wasm-bindgen-futures = { path = '../futures', version = '0.2.18' }
+wasm-bindgen-test-macro = { path = '../test-macro', version = '=0.2.18' }
 
 [lib]
 test = false
diff --git a/crates/wasm-interpreter/Cargo.toml b/crates/wasm-interpreter/Cargo.toml
index eb837fedbc5..ec420f915f1 100644
--- a/crates/wasm-interpreter/Cargo.toml
+++ b/crates/wasm-interpreter/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-wasm-interpreter"
-version = "0.2.17"
+version = "0.2.18"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/wasm-interpreter"
diff --git a/crates/web-sys/Cargo.toml b/crates/web-sys/Cargo.toml
index 25261494010..623fca83b25 100644
--- a/crates/web-sys/Cargo.toml
+++ b/crates/web-sys/Cargo.toml
@@ -15,11 +15,10 @@ wasm-bindgen-webidl = { path = "../webidl", version = "=0.2.17" }
 sourcefile = "0.1"
 
 [dependencies]
-wasm-bindgen = { path = "../..", version = "0.2.17" }
-js-sys = { path = '../js-sys', version = '0.2.1' }
+wasm-bindgen = { path = "../..", version = "0.2.18" }
+js-sys = { path = '../js-sys', version = '0.2.3' }
 
 [target.'cfg(target_arch = "wasm32")'.dev-dependencies]
 futures = "0.1"
-js-sys = { path = '../js-sys', version = '0.2.1' }
-wasm-bindgen-test = { path = '../test', version = '0.2.17' }
-wasm-bindgen-futures = { path = '../futures', version = '0.2.17' }
+wasm-bindgen-test = { path = '../test', version = '0.2.18' }
+wasm-bindgen-futures = { path = '../futures', version = '0.2.18' }
diff --git a/crates/webidl/Cargo.toml b/crates/webidl/Cargo.toml
index 6a0d67fc6dc..48d495592ef 100644
--- a/crates/webidl/Cargo.toml
+++ b/crates/webidl/Cargo.toml
@@ -19,5 +19,5 @@ log = "0.4.1"
 proc-macro2 = "0.4.8"
 quote = '0.6'
 syn = { version = '0.14', features = ['full'] }
-wasm-bindgen-backend = { version = "=0.2.17", path = "../backend" }
+wasm-bindgen-backend = { version = "=0.2.18", path = "../backend" }
 weedle = "0.6"
diff --git a/publish.rs b/publish.rs
new file mode 100644
index 00000000000..6afa8b16e59
--- /dev/null
+++ b/publish.rs
@@ -0,0 +1,197 @@
+//! Helper script to publish the wasm-bindgen suite of crates
+//!
+//! Usage:
+//!
+//! * First, compile this script
+//! * Next, set cwd to the root of the wasm-bindgen repository
+//! * Execute `./publish bump` to bump versions
+//! * Send a PR
+//! * Merge when green
+//! * Execute `./publish publish` to publish crates
+
+use std::env;
+use std::fs;
+use std::path::{Path, PathBuf};
+use std::process::Command;
+
+const CRATES_TO_PUBLISH: &[&str] = &[
+    "wasm-bindgen",
+    "js-sys",
+    "wasm-bindgen-backend",
+    "wasm-bindgen-cli",
+    "wasm-bindgen-cli-support",
+    "wasm-bindgen-futures",
+    "wasm-bindgen-macro",
+    "wasm-bindgen-macro-support",
+    "wasm-bindgen-shared",
+    "wasm-bindgen-test",
+    "wasm-bindgen-test-macro",
+    "wasm-bindgen-wasm-interpreter",
+];
+
+const CRATES_TO_AVOID_PUBLISH: &[&str] = &[
+    // We'll publish these when they're ready one day
+    "wasm-bindgen-typescript",
+    "web-sys",
+    "wasm-bindgen-webidl",
+
+    // These are internal crates, unlikely to ever be published
+    "ui-tests",
+    "sample",
+    "webidl-tests",
+];
+
+struct Crate {
+    manifest: PathBuf,
+    name: String,
+    version: String,
+    next_version: String,
+}
+
+fn main() {
+    let mut crates = Vec::new();
+    crates.push(read_crate("./Cargo.toml".as_ref()));
+    find_crates("crates".as_ref(), &mut crates);
+
+    match &env::args().nth(1).expect("must have one argument")[..] {
+        "bump" => {
+            for krate in crates.iter() {
+                bump_version(&krate, &crates);
+            }
+        }
+
+        "publish" => {
+            for krate in crates.iter() {
+                publish(&krate);
+            }
+        }
+
+        s => panic!("unknown command: {}", s),
+    }
+}
+
+fn find_crates(dir: &Path, dst: &mut Vec<Crate>) {
+    if dir.join("Cargo.toml").exists() {
+        let krate = read_crate(&dir.join("Cargo.toml"));
+        if CRATES_TO_PUBLISH.iter()
+            .chain(CRATES_TO_AVOID_PUBLISH)
+            .any(|c| krate.name == *c)
+        {
+            dst.push(krate);
+        } else {
+            panic!("failed to find {:?} in whitelist or blacklist", krate.name);
+        }
+    }
+
+    for entry in dir.read_dir().unwrap() {
+        let entry = entry.unwrap();
+        if entry.file_type().unwrap().is_dir() {
+            find_crates(&entry.path(), dst);
+        }
+    }
+}
+
+fn read_crate(manifest: &Path) -> Crate {
+    let mut name = None;
+    let mut version = None;
+    for line in fs::read_to_string(manifest).unwrap().lines() {
+        if name.is_none() && line.starts_with("name = \"") {
+            name = Some(line.replace("name = \"", "")
+                .replace("\"", "")
+                .trim()
+                .to_string());
+        }
+        if version.is_none() && line.starts_with("version = \"") {
+            version = Some(line.replace("version = \"", "")
+                .replace("\"", "")
+                .trim()
+                .to_string());
+        }
+    }
+    let name = name.unwrap();
+    let version = version.unwrap();
+    let next_version = if CRATES_TO_PUBLISH.contains(&&name[..]) {
+        bump(&version)
+    } else {
+        version.clone()
+    };
+    Crate {
+        manifest: manifest.to_path_buf(),
+        name,
+        version,
+        next_version,
+    }
+}
+
+fn bump_version(krate: &Crate, crates: &[Crate]) {
+    let contents = fs::read_to_string(&krate.manifest).unwrap();
+
+    let mut new_manifest = String::new();
+    let mut is_deps = false;
+    for line in contents.lines() {
+        let mut rewritten = false;
+        if line.starts_with("version =") {
+            if CRATES_TO_PUBLISH.contains(&&krate.name[..]) {
+                println!("bump `{}` {} => {}",
+                         krate.name,
+                         krate.version,
+                         krate.next_version);
+                new_manifest.push_str(&line.replace(&krate.version, &krate.next_version));
+                rewritten = true;
+            }
+        }
+
+        is_deps = if line.starts_with("[") {
+            line.contains("dependencies")
+        } else {
+            is_deps
+        };
+
+        for other in crates {
+            if !is_deps || !line.starts_with(&format!("{} ", other.name)) {
+                continue
+            }
+            if !line.contains(&other.version) {
+                if !line.contains("version =") {
+                    continue
+                }
+                panic!("{:?} has a dep on {} but doesn't list version {}",
+                       krate.manifest,
+                       other.name,
+                       other.version);
+            }
+            rewritten = true;
+            new_manifest.push_str(&line.replace(&other.version, &other.next_version));
+            break
+        }
+        if !rewritten {
+            new_manifest.push_str(line);
+        }
+        new_manifest.push_str("\n");
+    }
+    fs::write(&krate.manifest, new_manifest).unwrap();
+}
+
+fn bump(version: &str) -> String {
+    let mut iter = version.split('.').map(|s| s.parse::<u32>().unwrap());
+    let major = iter.next().expect("major version");
+    let minor = iter.next().expect("minor version");
+    let patch = iter.next().expect("patch version");
+    format!("{}.{}.{}", major, minor, patch + 1)
+}
+
+fn publish(krate: &Crate) {
+    if !CRATES_TO_PUBLISH.iter().any(|s| *s == krate.name) {
+        return
+    }
+    let status = Command::new("cargo")
+        .arg("publish")
+        .current_dir(krate.manifest.parent().unwrap())
+        .arg("--no-verify")
+        .arg("--allow-dirty")
+        .status()
+        .expect("failed to run cargo");
+    if !status.success() {
+        println!("FAIL: failed to publish `{}`: {}", krate.name, status);
+    }
+}