diff --git a/AnyWritable.zig b/AnyWritable.zig
new file mode 100644
index 0000000000000000000000000000000000000000..258967bfc742463dd79d4f70a3738a68e862e818
--- /dev/null
+++ b/AnyWritable.zig
@@ -0,0 +1,31 @@
+const std = @import("std");
+
+const nio = @import("./nio.zig");
+const AnyWritable = @This();
+
+vtable: *const struct {
+    write: *const fn (*allowzero anyopaque, []const u8) anyerror!usize,
+},
+state: *allowzero anyopaque,
+
+pub const WriteError = anyerror;
+pub usingnamespace nio.Writable(@This(), ._var);
+pub fn write(r: *AnyWritable, buffer: []u8) !usize {
+    return r.vtable.write(r.state, buffer);
+}
+pub fn anyWritable(r: AnyWritable) AnyWritable {
+    return r;
+}
+
+pub fn fromStd(writer_ptr: anytype) AnyWritable {
+    const S = struct {
+        fn _write(s: *allowzero anyopaque, buffer: []const u8) !usize {
+            const r: @TypeOf(writer_ptr) = @ptrCast(@alignCast(s));
+            return r.write(buffer);
+        }
+    };
+    return .{
+        .vtable = &.{ .write = &S._write },
+        .state = @constCast(@ptrCast(writer_ptr)),
+    };
+}
diff --git a/nio.zig b/nio.zig
index b57ea344f387a2a5507374e7486cd98a8b5a7d81..66f9a737038c1edfcfdc497e315a78a0b79c3c44 100644
--- a/nio.zig
+++ b/nio.zig
@@ -136,4 +136,6 @@ pub fn Writable(T: type, this_kind: enum { _var, _const, _bare }) type {
 
 pub const AnyReadable = @import("./AnyReadable.zig");
 
+pub const AnyWritable = @import("./AnyWritable.zig");
+
 pub const FixedBufferStream = @import("./fixed_buffer_stream.zig").FixedBufferStream;