diff --git a/.vscode/launch.json b/.vscode/launch.json
index 817b7533d3e3a2..872ff1e7e10525 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -15,6 +15,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test", "${file}"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_DEBUG_jest": "1",
@@ -31,6 +32,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test", "--only", "${file}"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_GARBAGE_COLLECTOR_LEVEL": "1",
@@ -53,6 +55,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test", "${file}"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_DEBUG_jest": "1",
@@ -69,6 +72,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test", "${file}"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "0",
         "BUN_DEBUG_jest": "1",
@@ -85,6 +89,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test", "--watch", "${file}"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_DEBUG_jest": "1",
@@ -101,6 +106,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test", "--hot", "${file}"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_DEBUG_jest": "1",
@@ -117,6 +123,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test", "${file}"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_DEBUG_jest": "1",
@@ -139,6 +146,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test", "${file}"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_DEBUG_jest": "1",
@@ -162,6 +170,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["run", "${fileBasename}"],
       "cwd": "${fileDirname}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "FORCE_COLOR": "0",
         "BUN_DEBUG_QUIET_LOGS": "1",
@@ -178,6 +187,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["run", "${fileBasename}"],
       "cwd": "${fileDirname}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_GARBAGE_COLLECTOR_LEVEL": "0",
@@ -197,6 +207,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["run", "${fileBasename}"],
       "cwd": "${fileDirname}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "0",
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
@@ -212,6 +223,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["run", "--watch", "${fileBasename}"],
       "cwd": "${fileDirname}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         // "BUN_DEBUG_DEBUGGER": "1",
         // "BUN_DEBUG_INTERNAL_DEBUGGER": "1",
@@ -230,6 +242,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["run", "--hot", "${fileBasename}"],
       "cwd": "${fileDirname}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
@@ -245,6 +258,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["run", "${fileBasename}"],
       "cwd": "${fileDirname}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "FORCE_COLOR": "0",
         "BUN_DEBUG_QUIET_LOGS": "1",
@@ -267,6 +281,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["run", "${fileBasename}"],
       "cwd": "${fileDirname}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "FORCE_COLOR": "0",
         "BUN_DEBUG_QUIET_LOGS": "1",
@@ -290,6 +305,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test", "${input:testName}"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_DEBUG_jest": "1",
@@ -306,6 +322,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test", "${input:testName}"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_DEBUG_jest": "1",
@@ -322,6 +339,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test", "${input:testName}"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_DEBUG_jest": "1",
@@ -338,6 +356,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test", "--watch", "${input:testName}"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_DEBUG_jest": "1",
@@ -354,6 +373,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test", "--hot", "${input:testName}"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_DEBUG_jest": "1",
@@ -370,6 +390,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test", "${input:testName}"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_DEBUG_jest": "1",
@@ -392,6 +413,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test", "${input:testName}"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_DEBUG_jest": "1",
@@ -415,6 +437,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["exec", "${input:testName}"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
@@ -431,6 +454,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
@@ -446,6 +470,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_GARBAGE_COLLECTOR_LEVEL": "0",
@@ -461,6 +486,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["test"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
@@ -482,6 +508,7 @@
       "program": "${workspaceFolder}/build/debug/bun-debug",
       "args": ["install"],
       "cwd": "${fileDirname}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
@@ -497,6 +524,7 @@
       "program": "node",
       "args": ["test/runner.node.mjs"],
       "cwd": "${workspaceFolder}",
+      "envFile": "${workspaceFolder}/.env",
       "env": {
         "BUN_DEBUG_QUIET_LOGS": "1",
         "BUN_GARBAGE_COLLECTOR_LEVEL": "2",
diff --git a/src/s3.zig b/src/s3.zig
index 6ccec287fce53d..15db08a8df9cbd 100644
--- a/src/s3.zig
+++ b/src/s3.zig
@@ -639,6 +639,10 @@ pub const AWSCredentials = struct {
                 }
             }
         };
+
+        // Default to https. Only use http if they explicit pass "http://" as the endpoint.
+        const protocol = if (strings.hasPrefixComptime(this.endpoint, "http://")) "http" else "https";
+
         // detect service name and host from region or endpoint
         var encoded_host_buffer: [512]u8 = undefined;
         var encoded_host: []const u8 = "";
@@ -708,28 +712,28 @@ pub const AWSCredentials = struct {
                     if (encoded_session_token) |token| {
                         break :brk try std.fmt.allocPrint(
                             bun.default_allocator,
-                            "https://{s}{s}?X-Amz-Acl={s}&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential={s}%2F{s}%2F{s}%2F{s}%2Faws4_request&X-Amz-Date={s}&X-Amz-Expires={}&X-Amz-Security-Token={s}&X-Amz-SignedHeaders=host&X-Amz-Signature={s}",
-                            .{ host, normalizedPath, acl_value, this.accessKeyId, amz_day, region, service_name, amz_date, expires, token, bun.fmt.bytesToHex(signature[0..DIGESTED_HMAC_256_LEN], .lower) },
+                            "{s}://{s}{s}?X-Amz-Acl={s}&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential={s}%2F{s}%2F{s}%2F{s}%2Faws4_request&X-Amz-Date={s}&X-Amz-Expires={}&X-Amz-Security-Token={s}&X-Amz-SignedHeaders=host&X-Amz-Signature={s}",
+                            .{ protocol, host, normalizedPath, acl_value, this.accessKeyId, amz_day, region, service_name, amz_date, expires, token, bun.fmt.bytesToHex(signature[0..DIGESTED_HMAC_256_LEN], .lower) },
                         );
                     } else {
                         break :brk try std.fmt.allocPrint(
                             bun.default_allocator,
-                            "https://{s}{s}?X-Amz-Acl={s}&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential={s}%2F{s}%2F{s}%2F{s}%2Faws4_request&X-Amz-Date={s}&X-Amz-Expires={}&X-Amz-SignedHeaders=host&X-Amz-Signature={s}",
-                            .{ host, normalizedPath, acl_value, this.accessKeyId, amz_day, region, service_name, amz_date, expires, bun.fmt.bytesToHex(signature[0..DIGESTED_HMAC_256_LEN], .lower) },
+                            "{s}://{s}{s}?X-Amz-Acl={s}&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential={s}%2F{s}%2F{s}%2F{s}%2Faws4_request&X-Amz-Date={s}&X-Amz-Expires={}&X-Amz-SignedHeaders=host&X-Amz-Signature={s}",
+                            .{ protocol, host, normalizedPath, acl_value, this.accessKeyId, amz_day, region, service_name, amz_date, expires, bun.fmt.bytesToHex(signature[0..DIGESTED_HMAC_256_LEN], .lower) },
                         );
                     }
                 } else {
                     if (encoded_session_token) |token| {
                         break :brk try std.fmt.allocPrint(
                             bun.default_allocator,
-                            "https://{s}{s}?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential={s}%2F{s}%2F{s}%2F{s}%2Faws4_request&X-Amz-Date={s}&X-Amz-Expires={}&X-Amz-Security-Token={s}&X-Amz-SignedHeaders=host&X-Amz-Signature={s}",
-                            .{ host, normalizedPath, this.accessKeyId, amz_day, region, service_name, amz_date, expires, token, bun.fmt.bytesToHex(signature[0..DIGESTED_HMAC_256_LEN], .lower) },
+                            "{s}://{s}{s}?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential={s}%2F{s}%2F{s}%2F{s}%2Faws4_request&X-Amz-Date={s}&X-Amz-Expires={}&X-Amz-Security-Token={s}&X-Amz-SignedHeaders=host&X-Amz-Signature={s}",
+                            .{ protocol, host, normalizedPath, this.accessKeyId, amz_day, region, service_name, amz_date, expires, token, bun.fmt.bytesToHex(signature[0..DIGESTED_HMAC_256_LEN], .lower) },
                         );
                     } else {
                         break :brk try std.fmt.allocPrint(
                             bun.default_allocator,
-                            "https://{s}{s}?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential={s}%2F{s}%2F{s}%2F{s}%2Faws4_request&X-Amz-Date={s}&X-Amz-Expires={}&X-Amz-SignedHeaders=host&X-Amz-Signature={s}",
-                            .{ host, normalizedPath, this.accessKeyId, amz_day, region, service_name, amz_date, expires, bun.fmt.bytesToHex(signature[0..DIGESTED_HMAC_256_LEN], .lower) },
+                            "{s}://{s}{s}?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential={s}%2F{s}%2F{s}%2F{s}%2Faws4_request&X-Amz-Date={s}&X-Amz-Expires={}&X-Amz-SignedHeaders=host&X-Amz-Signature={s}",
+                            .{ protocol, host, normalizedPath, this.accessKeyId, amz_day, region, service_name, amz_date, expires, bun.fmt.bytesToHex(signature[0..DIGESTED_HMAC_256_LEN], .lower) },
                         );
                     }
                 }
@@ -801,7 +805,7 @@ pub const AWSCredentials = struct {
             .host = host,
             .authorization = authorization,
             .acl = signOptions.acl,
-            .url = try std.fmt.allocPrint(bun.default_allocator, "https://{s}{s}{s}", .{ host, normalizedPath, if (search_params) |s| s else "" }),
+            .url = try std.fmt.allocPrint(bun.default_allocator, "{s}://{s}{s}{s}", .{ protocol, host, normalizedPath, if (search_params) |s| s else "" }),
             ._headers = [_]picohttp.Header{
                 .{ .name = "x-amz-content-sha256", .value = aws_content_hash },
                 .{ .name = "x-amz-date", .value = amz_date },