diff --git a/src/commands/kv/mod.rs b/src/commands/kv/mod.rs
index c6e2bcc31..0e533fd57 100644
--- a/src/commands/kv/mod.rs
+++ b/src/commands/kv/mod.rs
@@ -124,6 +124,7 @@ mod tests {
             webpack_config: None,
             site: None,
             vars: None,
+            text_blobs: None,
         };
         assert!(kv::get_namespace_id(&target_with_dup_kv_bindings, "").is_err());
     }
diff --git a/src/fixtures/wrangler_toml.rs b/src/fixtures/wrangler_toml.rs
index 0a2a48c96..b87bf363b 100644
--- a/src/fixtures/wrangler_toml.rs
+++ b/src/fixtures/wrangler_toml.rs
@@ -44,6 +44,7 @@ pub struct EnvConfig {
     #[serde(alias = "kv-namespaces")]
     pub kv_namespaces: Option<Vec<KvConfig>>,
     pub vars: Option<HashMap<&'static str, &'static str>>,
+    pub text_blobs: Option<HashMap<&'static str, &'static str>>,
     pub triggers: Option<Triggers>,
 }
 
@@ -104,6 +105,7 @@ pub struct WranglerToml {
     pub kv_namespaces: Option<Vec<KvConfig>>,
     pub site: Option<SiteConfig>,
     pub vars: Option<HashMap<&'static str, &'static str>>,
+    pub text_blobs: Option<HashMap<&'static str, &'static str>>,
     pub triggers: Option<Triggers>,
 }
 
diff --git a/src/settings/toml/environment.rs b/src/settings/toml/environment.rs
index 8703579a0..1ae426216 100644
--- a/src/settings/toml/environment.rs
+++ b/src/settings/toml/environment.rs
@@ -1,4 +1,5 @@
 use std::collections::HashMap;
+use std::path::PathBuf;
 
 use serde::{Deserialize, Serialize};
 use serde_with::rust::string_empty_as_none;
@@ -25,6 +26,7 @@ pub struct Environment {
     #[serde(alias = "kv-namespaces")]
     pub kv_namespaces: Option<Vec<ConfigKvNamespace>>,
     pub vars: Option<HashMap<String, String>>,
+    pub text_blobs: Option<HashMap<String, PathBuf>>,
     pub triggers: Option<Triggers>,
 }
 
diff --git a/src/settings/toml/manifest.rs b/src/settings/toml/manifest.rs
index ebc7a9356..fd48508c3 100644
--- a/src/settings/toml/manifest.rs
+++ b/src/settings/toml/manifest.rs
@@ -49,6 +49,7 @@ pub struct Manifest {
     pub kv_namespaces: Option<Vec<ConfigKvNamespace>>,
     pub env: Option<HashMap<String, Environment>>,
     pub vars: Option<HashMap<String, String>>,
+    pub text_blobs: Option<HashMap<String, PathBuf>>,
     pub triggers: Option<Triggers>,
 }
 
@@ -295,6 +296,7 @@ impl Manifest {
             kv_namespaces: get_namespaces(self.kv_namespaces.clone(), preview)?, // Not inherited
             site: self.site.clone(), // Inherited
             vars: self.vars.clone(), // Not inherited
+            text_blobs: self.text_blobs.clone(), // Inherited
         };
 
         let environment = self.get_environment(environment_name)?;
diff --git a/src/settings/toml/target.rs b/src/settings/toml/target.rs
index 7823f23d2..a68365249 100644
--- a/src/settings/toml/target.rs
+++ b/src/settings/toml/target.rs
@@ -16,6 +16,7 @@ pub struct Target {
     pub webpack_config: Option<String>,
     pub site: Option<Site>,
     pub vars: Option<HashMap<String, String>>,
+    pub text_blobs: Option<HashMap<String, PathBuf>>,
 }
 
 impl Target {
diff --git a/src/sites/mod.rs b/src/sites/mod.rs
index d2c0aed75..2b4e74978 100644
--- a/src/sites/mod.rs
+++ b/src/sites/mod.rs
@@ -320,6 +320,7 @@ mod tests {
             webpack_config: None,
             site: Some(site),
             vars: None,
+            text_blobs: None,
         }
     }
 
diff --git a/src/upload/form/mod.rs b/src/upload/form/mod.rs
index 09de2c0e8..c2c1fe8eb 100644
--- a/src/upload/form/mod.rs
+++ b/src/upload/form/mod.rs
@@ -33,6 +33,13 @@ pub fn build(
     let mut plain_texts: Vec<PlainText> = Vec::new();
     let mut wasm_modules: Vec<WasmModule> = Vec::new();
 
+    if let Some(blobs) = &target.text_blobs {
+        for (key, blob_path) in blobs.iter() {
+            let blob = fs::read_to_string(blob_path)?;
+            text_blobs.push(TextBlob::new(blob, key.clone())?);
+        }
+    }
+
     if let Some(vars) = &target.vars {
         for (key, value) in vars.iter() {
             plain_texts.push(PlainText::new(key.clone(), value.clone())?)
diff --git a/tests/preview.rs b/tests/preview.rs
index f9e9f8430..565c10e42 100644
--- a/tests/preview.rs
+++ b/tests/preview.rs
@@ -227,6 +227,35 @@ fn it_previews_with_config_text() {
     preview_succeeds_with(&fixture, None, test_value);
 }
 
+#[test]
+fn it_previews_with_text_blob() {
+    let fixture = Fixture::new();
+    fixture.create_file(
+        "index.js",
+        r#"
+        addEventListener('fetch', event => {
+            event.respondWith(handleRequest(event.request))
+        })
+
+        async function handleRequest(request) {
+            return new Response(BLOB)
+        }
+    "#,
+    );
+    fixture.create_default_package_json();
+
+    let test_value: &'static str = "sdhftiuyrtdhfjgpoopuyrdfjgkyitudrhf";
+    fixture.create_file("blob.txt", test_value);
+
+    let mut wrangler_toml = WranglerToml::javascript("test-preview-with-config");
+    let mut blobs: HashMap<&'static str, &'static str> = HashMap::new();
+    blobs.insert("BLOB", "blob.txt");
+    wrangler_toml.text_blobs = Some(blobs);
+    fixture.create_wrangler_toml(wrangler_toml);
+
+    preview_succeeds_with(&fixture, None, test_value);
+}
+
 fn preview_succeeds_with(fixture: &Fixture, env: Option<&str>, expected: &str) {
     env::remove_var("CF_ACCOUNT_ID");
     env::remove_var("CF_ZONE_ID");