diff --git a/README.md b/README.md
index 5ab2722..42f62d5 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,7 @@ if __name__ == "__main__":
  - [x] curl -> requests (very basic)
  - [ ] xargs (only prints)
  - [x] shell commands (no stderr capture)
- - [ ] jq via bindings
+ - [x] jq via bindings
  - [ ] head/tail
  - [ ] sort
  - [ ] basic shell loops
diff --git a/hellpipe/convert.py b/hellpipe/convert.py
index 352d8e4..e23a809 100644
--- a/hellpipe/convert.py
+++ b/hellpipe/convert.py
@@ -2,7 +2,8 @@ from typing import Optional
 from . import mappers
 
 MAPPERS = {"curl": mappers.CurlMapper,
-    "xargs": mappers.XargsMapper}
+    "xargs": mappers.XargsMapper,
+           "jq": mappers.JqMapper}
 
 
 def convert_command(command: list[str], input_name: Optional[str]):
diff --git a/hellpipe/main.py b/hellpipe/main.py
index 244dbc3..5fcbb1d 100644
--- a/hellpipe/main.py
+++ b/hellpipe/main.py
@@ -13,7 +13,7 @@ FILE_END = """
 if __name__ == "__main__":
     main()"""
 
-INPUTCMD = """curl "https://httpbin.org/get?test=123" | jq ".headers|keys[]" -r | xargs -L 1 echo"""
+INPUTCMD = """curl "https://httpbin.org/get?test=123" -H "X-Test: 1" | jq ".headers|keys[]" -r | xargs -L 1 echo"""
 
 
 def split_commands(tokens):
diff --git a/hellpipe/mappers.py b/hellpipe/mappers.py
index deeffa6..228214c 100644
--- a/hellpipe/mappers.py
+++ b/hellpipe/mappers.py
@@ -4,6 +4,7 @@ from typing import List
 from dataclasses import dataclass
 from textwrap import dedent
 from urllib import parse as urlparse
+import email
 
 @dataclass
 class PipeEnd:
@@ -36,6 +37,7 @@ class CurlMapper(AbstractMapper):
     def __init__(self, command):
         parser = argparse.ArgumentParser("curl", exit_on_error=False)
         parser.add_argument("url")
+        parser.add_argument("--header", "-H", action="append", default=[])
         self._parsed = parser.parse_args(command[1:])
 
     def get_input_types(self):
@@ -45,9 +47,15 @@ class CurlMapper(AbstractMapper):
         url = urlparse.urlparse(self._parsed.url)
         query = urlparse.parse_qs(url.query)
         url_no_qs = urlparse.urlunparse(url._replace(query=None))
+
+        headers = {}
+        for header in self._parsed.header:
+            headers.update(email.message_from_string(header))
+
         code = dedent(f"""\
+            headers = {headers}
             params = {query!r}
-            res = requests.get({url_no_qs!r}, params=params).text
+            res = requests.get({url_no_qs!r}, params=params, headers=headers).text
             """)
         return ShellMapping(code=code, output_name="res", output_format="str", input_format="", imports=["import requests"])
 
@@ -79,6 +87,24 @@ class ShellMapper(AbstractMapper):
         )
 
 
+class JqMapper(AbstractMapper):
+    def __init__(self, command):
+        parser = argparse.ArgumentParser("jq", exit_on_error=False)
+        parser.add_argument("filter")
+        parser.add_argument("--raw-output", "-r", action="store_true", default=False)
+        self._parsed = parser.parse_args(command[1:])
+
+    def get_input_types(self):
+        return ["json", "bytes"]
+
+    def generate(self, input_name: str, output_formats: List[str]) -> ShellMapping:
+        # TODO: remove join hack with proper datatype analysis
+        code = dedent(f"""\
+            filtered = "\\n".join(jq.all({self._parsed.filter!r}, text={input_name}))
+            """)
+        return ShellMapping(code=code, output_name="filtered", output_format="str", input_format="", imports=["import jq"])
+
+
 class XargsMapper(AbstractMapper):
     def __init__(self, command):
         parser = argparse.ArgumentParser("xargs", exit_on_error=False)