Teach Real C++.
Without the C++ Setup.
Alps compiles your students’ C++ with a real clang toolchain — right in the browser. Live keyboard input, real compiler errors, and the full standard library. No installs, no lab images, no “works on my machine.”
Students write real C++, get real compiler diagnostics, and see results the instant they hit Run — on any device, Chromebooks included. From their first program to a full data-structures course.
std::cin and real clang diagnosticsCompiled C++. Running Live.
A short loop: clang compiles in the browser → the program waits at std::cin for real input → a real compiler error, fixed, then unit tests pass.
A scripted walkthrough of the in-browser editor — not a live compiler on this page.
Real C++ Behavior. Classroom-Friendly Setup.
The compiler is real clang. What changes is everything around it — no installs, no lab images, no grading pipeline to babysit.
Same C++ for Every Student
One clang toolchain, identical for everyone — no installs, no lab images, no “works on my machine.” It runs on a Chromebook exactly as it runs on a laptop, so day one is writing code, not configuring it.
Console Programs Just Work
Real std::cin and std::getline pause and wait for the student — interactive programs run interactively, not as a buffered batch. The terminal behaves like the one on their own machine.
Real Compiler Diagnostics
Students see the exact clang file:line:col errors, highlighted on the offending line — the messages every C++ programmer learns to read, not a sandbox’s watered-down paraphrase.
Instant Practice Feedback
The full standard library, exceptions, and multi-file projects. Unit tests run right in the browser, so students self-check and iterate before anything reaches your gradebook.
C++ Textbooks. Runnable Examples.
Complete C++ curricula — from first principles to data structures — with code examples you can edit and run right on the page.
Reading Becomes Doing
Other tools hand you an empty editor. Alps ships full interactive C++ books — every listing is a live editor, so students change the book’s own examples, hit Run, and watch real clang compile and execute them.
- ✓ Every code listing is a live editor — edit, Run, see real output
- ✓ Real clang compiles in the browser — same behavior as a desktop compiler
- ✓ Auto-detects runnable C++ in any imported book — or your own
First Program to Data Structures
One environment carries a student from Hello, World through pointers, classes, and the STL — no new install at any step.
Variables, loops, functions
References, pointers, RAII
Objects, templates, containers
Lists, trees, graphs, maps
Want a deep bench of practice? Logic Gym adds thousands of validated, auto-graded C++ problems — Beginner through Competitive. Have your own C++ textbook? Alps can onboard any book as an interactive course. We work with publishers and support licensed editions. Get in touch.
C++ gets the same adaptive layer as every Alps language — Adaptive Coding breaks hard problems into sub-steps, Adaptive Parsons scaffolds with rearrangeable code blocks, and BloomIQ turns every run into learning analytics.
More Than an Online Compiler
| Feature | Alps | Other Browser Tools |
|---|---|---|
| Real clang compiler, not a limited interpreter | ~ | |
| Interactive std::cin — the program waits for input | ~ | |
| Real clang diagnostics, highlighted inline | ~ | |
| Full standard library and C++ exceptions | ~ | |
| Multi-file projects (.h + .cpp) | ||
| In-browser unit-test feedback | ~ | |
| No installs — works on Chromebooks | ~ | |
| Built into curricula, tutoring, and grading |
Teach C++ Without the Setup.
Real clang, live input, real diagnostics, and complete C++ textbooks — from any device, nothing to install. Start with the free Educator Basic tier.