diff --git a/src/packageurl/contrib/purl2url.py b/src/packageurl/contrib/purl2url.py
index 6e91bab..7b09ed9 100644
--- a/src/packageurl/contrib/purl2url.py
+++ b/src/packageurl/contrib/purl2url.py
@@ -351,3 +351,53 @@ def build_github_download_url(purl):
     version = f"{version_prefix}{version}"
 
     return f"https://github.com/{namespace}/{name}/archive/refs/tags/{version}.zip"
+
+
+@download_router.route("pkg:bitbucket/.*")
+def build_bitbucket_download_url(purl):
+    """
+    Return a bitbucket download URL from the `purl` string.
+    """
+    purl_data = PackageURL.from_string(purl)
+
+    namespace = purl_data.namespace
+    name = purl_data.name
+    version = purl_data.version
+    qualifiers = purl_data.qualifiers
+
+    download_url = qualifiers.get("download_url")
+    if download_url:
+        return download_url
+
+    if not (namespace and name and version):
+        return
+
+    version_prefix = qualifiers.get("version_prefix", "")
+    version = f"{version_prefix}{version}"
+
+    return f"https://bitbucket.org/{namespace}/{name}/get/{version}.zip"
+
+
+@download_router.route("pkg:gitlab/.*")
+def build_gitlab_download_url(purl):
+    """
+    Return a gitlab download URL from the `purl` string.
+    """
+    purl_data = PackageURL.from_string(purl)
+
+    namespace = purl_data.namespace
+    name = purl_data.name
+    version = purl_data.version
+    qualifiers = purl_data.qualifiers
+
+    download_url = qualifiers.get("download_url")
+    if download_url:
+        return download_url
+
+    if not (namespace and name and version):
+        return
+
+    version_prefix = qualifiers.get("version_prefix", "")
+    version = f"{version_prefix}{version}"
+
+    return f"https://gitlab.com/{namespace}/{name}/-/archive/{version}/{name}-{version}.zip"
diff --git a/tests/contrib/test_purl2url.py b/tests/contrib/test_purl2url.py
index ed0c686..eef1ba6 100644
--- a/tests/contrib/test_purl2url.py
+++ b/tests/contrib/test_purl2url.py
@@ -75,6 +75,10 @@ def test_purl2url_get_download_url():
         "pkg:hackage/cli-extras@0.2.0.0": "https://hackage.haskell.org/package/cli-extras-0.2.0.0/cli-extras-0.2.0.0.tar.gz",
         "pkg:nuget/System.Text.Json@6.0.6": "https://www.nuget.org/api/v2/package/System.Text.Json/6.0.6",
         "pkg:github/nexb/scancode-toolkit@3.1.1?version_prefix=v": "https://github.com/nexb/scancode-toolkit/archive/refs/tags/v3.1.1.zip",
+        "pkg:bitbucket/robeden/trove@3.0.3": "https://bitbucket.org/robeden/trove/get/3.0.3.zip",
+        "pkg:bitbucket/robeden/trove@3.0.3?version_prefix=v": "https://bitbucket.org/robeden/trove/get/v3.0.3.zip",
+        "pkg:gitlab/tg1999/firebase@1a122122": "https://gitlab.com/tg1999/firebase/-/archive/1a122122/firebase-1a122122.zip",
+        "pkg:gitlab/tg1999/firebase@1a122122?version_prefix=v": "https://gitlab.com/tg1999/firebase/-/archive/v1a122122/firebase-v1a122122.zip",
         # From `download_url` qualifier
         "pkg:github/yarnpkg/yarn@1.3.2?download_url=https://github.com/yarnpkg/yarn/releases/download/v1.3.2/yarn-v1.3.2.tar.gz&version_prefix=v": "https://github.com/yarnpkg/yarn/releases/download/v1.3.2/yarn-v1.3.2.tar.gz",
         "pkg:generic/lxc-master.tar.gz?download_url=https://salsa.debian.org/lxc-team/lxc/-/archive/master/lxc-master.tar.gz": "https://salsa.debian.org/lxc-team/lxc/-/archive/master/lxc-master.tar.gz",
@@ -87,7 +91,6 @@ def test_purl2url_get_download_url():
         "pkg:cargo/abc": None,
         "pkg:gem/package-name": None,
         "pkg:bitbucket/birkenfeld": None,
-        "pkg:gitlab/tg1999/firebase@1a122122": None,
         "pkg:pypi/sortedcontainers@2.4.0": None,
         "pkg:golang/xorm.io/xorm@v0.8.2": None,
         "pkg:golang/gopkg.in/ldap.v3@v3.1.0": None,
@@ -121,7 +124,10 @@ def test_purl2url_get_inferred_urls():
         ],
         "pkg:cargo/abc": ["https://crates.io/crates/abc"],
         "pkg:github/tg1999/fetchcode": ["https://github.com/tg1999/fetchcode"],
-        "pkg:gitlab/tg1999/firebase@1a122122": ["https://gitlab.com/tg1999/firebase"],
+        "pkg:gitlab/tg1999/firebase@1a122122": [
+            "https://gitlab.com/tg1999/firebase",
+            "https://gitlab.com/tg1999/firebase/-/archive/1a122122/firebase-1a122122.zip",
+        ],
         "pkg:pypi/sortedcontainers@2.4.0": ["https://pypi.org/project/sortedcontainers/2.4.0/"],
         "pkg:gem/package-name": [],
         "pkg:bitbucket/birkenfeld": [],