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diff --git a/goldfishterm/simple.h b/goldfishterm/simple.h
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+// Copyright 2021 Benjamin Barenblat
+//
+// Licensed under the Apache License, Version 2.0 (the "License"); you may not
+// use this file except in compliance with the License. You may obtain a copy of
+// the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations under
+// the License.
+
+#ifndef EC_GOLDFISHTERM_SIMPLE_H_
+#define EC_GOLDFISHTERM_SIMPLE_H_
+
+#include <termios.h>
+
+#include <iostream>
+#include <vector>
+
+#include "goldfishterm/internal/string_capability.h"
+#include "goldfishterm/terminfo.h"
+#include "third_party/abseil/absl/strings/string_view.h"
+
+namespace goldfishterm {
+
+// Looks up escape sequences for the terminal described in the TERM environment
+// variable, and allows sending those escape sequences to standard output.
+//
+// This class is thread-safe, provided you don't mutate the TERM environment
+// variable while its constructor is running.
+class SimpleTerminalOutput final {
+ public:
+  explicit SimpleTerminalOutput();
+  explicit SimpleTerminalOutput(const termios&);
+
+  SimpleTerminalOutput(const SimpleTerminalOutput&) noexcept = default;
+  SimpleTerminalOutput& operator=(const SimpleTerminalOutput&) noexcept =
+      default;
+  SimpleTerminalOutput(SimpleTerminalOutput&&) noexcept = default;
+  SimpleTerminalOutput& operator=(SimpleTerminalOutput&&) noexcept = default;
+
+  void Write(absl::string_view s) { std::cout.write(s.data(), s.size()); }
+
+  void Flush() { std::cout.flush(); }
+
+  // Rings the bell. On some terminals, this may flash the screen instead.
+  void Beep() { Emit(StringCapability::kBell); }
+
+  // Moves the cursor to the beginning of the current line.
+  void BeginningOfLine() { Emit(StringCapability::kCarriageReturn); }
+
+  // Clears from the cursor to the end of the current line.
+  void ClearToEndOfLine() { Emit(StringCapability::kClrEol); }
+
+  // Moves the cursor down one line.
+  void CursorDown() { Emit(StringCapability::kCursorDown); }
+
+ private:
+  void Emit(StringCapability,
+            std::vector<goldfishterm_internal::StringCapabilityParameter> = {});
+
+  TerminfoEntry terminfo_;
+  int baud_;
+};
+
+}  // namespace goldfishterm
+
+#endif  // EC_GOLDFISHTERM_SIMPLE_H_