An AI assistance that treats you like a builder.
Free, Zero subscriptions, and designed by high school hackers, Built to help
you debug messy code , break down though school concepts without spoon feeding-
feeding you answers and launch weekend projects
YOU ASKED:
"why is my python binary search looping forever on low high"HACKACHAT EXPLAINED:
"Look at how you recalculate mid. if you write high = mid instead of high = mid - 1, the search window never shrinks when two element remain:"Next loop: mid=(0+0)//2 = 0 stuck!
A peer at the next desk, not a corporate
bot.
Most chatbot either blurt out homeworks answer(so you fail the test later) or talk down to you. Hackachat is tuned for learning by building.
REAL CODE UNDERSTANDING
Pinpoints bugs without hand-waving
Paste Terminal logs, cryptic compliers, or CSS flexbox disaster. Hackachat steps through the execution stacks points out exact lines where state went out of sync, and gives syntax-highlighted solutions.
Tuned for:Python, TypeScript, React, C++, Rust, Arduino, Git, and Linux terminal commands.
PEDAGOGY FIRST
Hint before answers
When you're stuck on calculus, AP chemistry, or essay structure, Hackachat asks guiding questions and explains the intuition behind the formula so it actually clicks.
"Never just paste answers into homework—understand the machinery.",
MAKER SPIRIT
Brainstorm realistic weekends builds
Want to build a Discord bot, a solderable macro pad, or a game in Godot? Hackachat breaks big ideas down into 3-hour milestones so you can actually ship by Sunday night.
FULL USER CONTROL
Open weights, zero lock-in
Switch between Meta's Llama 3.3 70B, Mistral Nemo, and Qwen Coder in one click. Dial in temperature, adjust response lengths, or export all conversations as raw JSON whenever you want.
come here now
Try it right here in your browser.
This isn't an image or mockup. It's the actual shadcn-based chat interface hooked into
the API. Test a question below:
You
Can you show me a simple Python snippet to read a sensor or file safely, and explain what could go wrong?
Here is the clean, idiomatic way to read a file using a with context manager:
# safe_read.py
def read_sensor_data(filepath: str) -> str:
try:
with open(filepath, mode="r", encoding="utf-8") as f:
return f.read().strip()
except FileNotFoundError:
print(f"[!pathname] Warning: file does not exist yet.")
return ""
except PermissionError:
print(f"[!pathname] Error: No read permission.")
return ""What could go wrong without with ?
1. Dangling file handles: If an exception occurs before f.close(), the OS keeps the file locked in memory.
2. Encoding mismatches: On Windows, default encoding is often Windows-1252, which crashes on emojis or special symbols unless you explicitly pass encoding="utf-8".
Why is this free? Who runs it?
Hackachat was started by a team of teenagers inside Hack Club’s Third Space. We wanted an AI tool we could use for school, coding clubs, and weekend game jams without hitting paywalls.
Hack Club AI Proxy
Hack Club provides free upstream API compute (ai.hackclub.com) to high school coders. They run an OpenAI-compatible Proxy with leading models.
Built by teenagers
Two of our contributors are beginners learning frontend development. The code is structured cleanly with small components, typed schemas, and zero convoluted boilerplate so students can read and modify.
Open source and reproducible
Everything you see is open source. You can run the fast API backend, spin up the web app, connect your own proxy key, or host it for your own high school club.
An honest look at privacy & limits
Most Privacy policies hide behind twenty pages of jargon. Here is how Hackachat actually works with your data, plain and simple.
What lives on your device
All your chat logs, custom instructions, and settings are saved locally in your browser storage. If you clear your browser data or switch devices, chats won’t follow you unless you export them.
What goes through the API
When you send a message, it is forwarded through our backend server to Hack Club AI (ai.hackclub.com). To keep the free tier safe from automated spam and abuse, requests are logged upstream for abuse prevention.
Fair rate limits
Because this service is run for free by a non-profit student community, we limit usage to 20 messages per minute and 250 messages per day per client. This keeps it fair for everyone.
Models can be wrong
Language models hallucinate and make subtle logic errors. Always double-check critical formulas, syntax, or facts before submitting homework or shipping code.