diff --git a/spago.lock b/spago.lock
index 319e704..a56400d 100644
--- a/spago.lock
+++ b/spago.lock
@@ -7,6 +7,7 @@ workspace:
         - aff-promise
         - arraybuffer
         - arraybuffer-types
+        - b64
         - bifunctors
         - effect
         - either
@@ -37,6 +38,7 @@ workspace:
         - arraybuffer
         - arraybuffer-types
         - arrays
+        - b64
         - bifunctors
         - const
         - contravariant
@@ -45,6 +47,7 @@ workspace:
         - distributive
         - effect
         - either
+        - encoding
         - enums
         - exceptions
         - exists
@@ -5802,6 +5805,20 @@ packages:
       - tuples
       - unfoldable
       - unsafe-coerce
+  b64:
+    type: git
+    url: https://github.com/menelaos/purescript-b64.git
+    rev: 1d66c26733ed5924bcab8901204245daac0f2952
+    dependencies:
+      - arraybuffer-types
+      - either
+      - encoding
+      - enums
+      - exceptions
+      - functions
+      - partial
+      - prelude
+      - strings
   bifunctors:
     type: git
     url: https://github.com/purescript/purescript-bifunctors.git
@@ -5883,6 +5900,16 @@ packages:
       - invariant
       - maybe
       - prelude
+  encoding:
+    type: git
+    url: https://github.com/menelaos/purescript-encoding.git
+    rev: a9d1913de736821c133ecd7944a08b2ab07ad774
+    dependencies:
+      - arraybuffer-types
+      - either
+      - exceptions
+      - functions
+      - prelude
   enums:
     type: git
     url: https://github.com/purescript/purescript-enums.git
diff --git a/spago.yaml b/spago.yaml
index 8a6a490..d5c378c 100644
--- a/spago.yaml
+++ b/spago.yaml
@@ -4,6 +4,7 @@ package:
     - aff-promise
     - arraybuffer
     - arraybuffer-types
+    - b64
     - bifunctors
     - effect
     - either
diff --git a/src/HTTP/Form.purs b/src/HTTP/Form.purs
index e9365bc..487a6a4 100644
--- a/src/HTTP/Form.purs
+++ b/src/HTTP/Form.purs
@@ -2,14 +2,12 @@ module HTTP.Form where
 
 import Prelude
 
-import Control.Monad.Error.Class (liftMaybe, try)
+import Control.Monad.Error.Class (liftMaybe)
 import Control.Monad.Except (runExcept)
 import Control.Promise (Promise)
 import Control.Promise as Promise
-import Data.ArrayBuffer.ArrayBuffer as ArrayBuffer
 import Data.ArrayBuffer.Types (ArrayBuffer)
 import Data.Either (hush)
-import Data.Foldable (foldl)
 import Data.FoldableWithIndex (foldlWithIndex)
 import Data.Generic.Rep (class Generic)
 import Data.Map (Map)
@@ -20,19 +18,15 @@ import Data.Nullable (Nullable)
 import Data.Nullable as Nullable
 import Data.Show.Generic (genericShow)
 import Data.Traversable (for)
-import Data.Tuple (Tuple(..))
 import Effect (Effect)
-import Effect.Aff (Aff)
 import Effect.Aff.Class (class MonadAff, liftAff)
 import Effect.Class (class MonadEffect, liftEffect)
 import Effect.Exception (error)
 import Foreign (Foreign, unsafeReadTagged, unsafeToForeign)
 import Foreign.Object (Object)
 import Foreign.Object as Object
-import HTTP.Header as Header
 import HTTP.MIME (MIME)
 import HTTP.MIME as MIME
-import Node.Buffer.Immutable (ImmutableBuffer)
 import Simple.JSON (readImpl, unsafeStringify)
 import Unsafe.Coerce (unsafeCoerce)
 import Web.File.Blob (Blob)
diff --git a/src/HTTP/Header.purs b/src/HTTP/Header.purs
index e1a662a..e56276b 100644
--- a/src/HTTP/Header.purs
+++ b/src/HTTP/Header.purs
@@ -2,6 +2,7 @@ module HTTP.Header where
 
 import Prelude
 
+import Control.Monad.Error.Class (liftEither)
 import Data.Eq.Generic (genericEq)
 import Data.Generic.Rep (class Generic)
 import Data.Map (Map)
@@ -9,13 +10,12 @@ import Data.Map as Map
 import Data.Maybe (Maybe, maybe)
 import Data.Newtype (class Newtype, unwrap, wrap)
 import Data.Show.Generic (genericShow)
+import Data.String.Base64 as String.Base64
 import Data.Tuple (Tuple(..))
 import Effect (Effect)
 import Effect.Class (class MonadEffect, liftEffect)
 import HTTP.MIME (MIME)
 import HTTP.MIME as MIME
-import Node.Buffer as Buffer
-import Node.Encoding (Encoding(..))
 
 newtype ContentType = ContentType MIME
 
@@ -50,8 +50,7 @@ instance Eq Authorization where
 
 authorizationValue :: forall m. MonadEffect m => Authorization -> m String
 authorizationValue (AuthBasic { username, password }) = do
-  buf <- liftEffect $ Buffer.fromString (username <> ":" <> password) UTF8
-  val <- liftEffect $ Buffer.toString Base64 buf
+  val <- liftEffect $ liftEither $ String.Base64.btoa $ username <> ":" <> password
   authorizationValue $ AuthCustom (wrap "Basic") val
 authorizationValue (AuthBearer val) = authorizationValue $ AuthCustom (wrap "Bearer") val
 authorizationValue (AuthCustom (AuthScheme scheme) val) = pure $ scheme <> " " <> val
diff --git a/src/HTTP/Request.purs b/src/HTTP/Request.purs
index 350348d..4f8486c 100644
--- a/src/HTTP/Request.purs
+++ b/src/HTTP/Request.purs
@@ -7,7 +7,6 @@ module HTTP.Request
   , json
   , form
   , blob
-  , buffer
   , arrayBuffer
   , requestBody
   , requestHeaders
@@ -23,8 +22,6 @@ import Control.Promise as Promise
 import Data.ArrayBuffer.Types (ArrayBuffer)
 import Data.Eq.Generic (genericEq)
 import Data.Generic.Rep (class Generic)
-import Data.Map (Map)
-import Data.Map as Map
 import Data.Maybe (Maybe(..))
 import Data.Newtype (unwrap)
 import Data.Nullable as Nullable
@@ -37,13 +34,10 @@ import Effect.Aff.Class (class MonadAff, liftAff)
 import Effect.Class (class MonadEffect, liftEffect)
 import HTTP.Form (Form, RawFormData)
 import HTTP.Form as Form
-import HTTP.Header (ContentType(..), Headers(..))
+import HTTP.Header (ContentType(..), Headers)
 import HTTP.Header as Header
 import HTTP.MIME (MIME)
 import HTTP.MIME as MIME
-import Node.Buffer (Buffer)
-import Node.Buffer as Buffer
-import Node.Encoding (Encoding(..))
 import Simple.JSON (class WriteForeign, writeJSON)
 import Unsafe.Coerce (unsafeCoerce)
 import Web.File.Blob (Blob)
@@ -57,6 +51,9 @@ foreign import rawRequestBodySize :: RawRequestBody -> Effect Int
 unsafeEmptyRawRequestBody :: RawRequestBody
 unsafeEmptyRawRequestBody = unsafeCoerce Nullable.null
 
+unsafeStringRawRequestBody :: String -> RawRequestBody
+unsafeStringRawRequestBody = unsafeCoerce
+
 unsafeFormDataToRawRequestBody :: RawFormData -> RawRequestBody
 unsafeFormDataToRawRequestBody = unsafeCoerce
 
@@ -69,7 +66,6 @@ unsafeBlobToRawRequestBody = map unsafeArrayBufferToRawRequestBody <<< liftAff <
 data Body
   = BodyString String (Maybe ContentType)
   | BodyArrayBuffer ArrayBuffer (Maybe ContentType)
-  | BodyBuffer Buffer (Maybe ContentType)
   | BodyBlob Blob
   | BodyForm Form
   | BodyEmpty
@@ -83,9 +79,6 @@ form = BodyForm
 blob :: Blob -> Body
 blob = BodyBlob
 
-buffer :: MIME -> Buffer -> Body
-buffer mime buf = BodyBuffer buf $ Just $ ContentType mime
-
 arrayBuffer :: MIME -> ArrayBuffer -> Body
 arrayBuffer mime buf = BodyArrayBuffer buf $ Just $ ContentType mime
 
@@ -93,13 +86,11 @@ bodyHeaders :: forall m. MonadEffect m => Body -> m Headers
 bodyHeaders (BodyForm _) = pure mempty
 bodyHeaders (BodyEmpty) = pure mempty
 bodyHeaders (BodyString _ ct) = liftEffect $ Header.headers ct
-bodyHeaders (BodyBuffer _ ct) = liftEffect $ Header.headers ct
 bodyHeaders (BodyArrayBuffer _ ct) = liftEffect $ Header.headers ct
 bodyHeaders (BodyBlob b) = liftEffect $ Header.headers <<< map (ContentType <<< MIME.fromString <<< unwrap) $ Blob.type_ b
 
 bodyToRaw :: forall m. MonadAff m => Body -> m (Maybe RawRequestBody)
-bodyToRaw (BodyString body ct) = flip bind bodyToRaw $ liftEffect $ map (flip BodyBuffer ct) $ Buffer.fromString body UTF8
-bodyToRaw (BodyBuffer body ct) = flip bind bodyToRaw $ liftEffect $ map (flip BodyArrayBuffer ct) $ Buffer.toArrayBuffer body
+bodyToRaw (BodyString body _) = pure $ Just $ unsafeStringRawRequestBody body
 bodyToRaw (BodyArrayBuffer body _) = pure $ Just $ unsafeArrayBufferToRawRequestBody body
 bodyToRaw (BodyForm form') = map Just $ map unsafeFormDataToRawRequestBody $ Form.toRawFormData form'
 bodyToRaw (BodyBlob body) = map Just $ unsafeBlobToRawRequestBody body