Limit Checker

🚀 Free & Open Source

Never Hit Token Limits Again

AI Limit Checker tracks token usage, context windows, session limits, and rate-limit status across Claude, ChatGPT, Grok, Gemini, and Perplexity.

Real-Time Limits

Watch usage update as you prompt.

Fast Decisions

Know when to switch tools or models.

Multi-Platform

Claude, ChatGPT, Grok, Gemini, and more.

Scroll Down ↓

What We Do

One Widget. All Your AI Tools.

A lightweight Chrome extension that tracks your token usage, context windows, session limits, and rate limit status across all major AI platforms—in real-time.

📊

Live Token Counter

See exactly how many tokens you're using in real-time as you type. Never get cut off mid-conversation again.

🎯

Context Bar Tracking

Visualize your context window usage with an elegant progress bar. Know when you're approaching limits.

⚡

Rate Limit Monitor

Stay ahead of rate limits with proactive alerts. Work efficiently without interruptions.

🔄

Session Analytics

Track your AI usage patterns over time. Optimize your workflow and understand your habits.

Who It's For

Built for Power Users

Whether you're coding, writing, or researching—if you live in AI tools, this is for you.

👨‍💻

Developers

Building with AI APIs? Track your usage across different models and optimize your token consumption for cost efficiency.

✍️

Content Creators

Writing long-form content? Monitor your context window to ensure your AI assistant never loses the thread of your work.

🔬

Researchers

Processing large documents? Know exactly where you stand with token limits before uploading that next research paper.

🎓

Students

Learning and exploring AI? Understand how these tools work under the hood and use them more effectively.

Why It Matters

Stop Flying Blind

AI tools don't tell you when you're about to hit a wall. We do.

💰

Save Money

Avoid wasted tokens and unnecessary retries. Optimize your usage and reduce API costs by up to 40%.

⏱️

Save Time

No more hitting limits mid-task and having to start over. Stay productive with proactive monitoring.

🧠

Work Smarter

Understand your AI usage patterns. Make informed decisions about which tool to use for which task.

🎯

Stay Focused

Less context-switching, fewer interruptions. Keep your workflow smooth with real-time visibility.

Why Trust Us

Open Source. Privacy First.

Your data stays on your device. Always. No tracking, no analytics, no BS.

🔒

Zero Data Collection

We don't track, store, or collect any of your data. Everything runs locally in your browser.

📖

100% Open Source

Full source code available on GitHub. Inspect, modify, contribute—complete transparency.

🚀

Actively Maintained

Regular updates, bug fixes, and new features. Built by developers, for developers.

💎

Forever Free

No premium tiers, no paywalls, no subscriptions. Quality tools should be accessible to everyone.

Our Services

Supported AI Platforms

Monitor all your favorite AI tools from one place

Claude (Anthropic)

ChatGPT (OpenAI)

Grok (xAI)

Gemini (Google)

Perplexity

Show Me Proof

The Numbers Speak

Real impact for power users

AI Platforms Supported

100%

Open Source

Data Collected

∞

Free Forever

What To Do Next

Get Started in 3 Steps

It's ridiculously simple

Install the Extension

Download from the Chrome Web Store or build from source on GitHub. Takes less than 30 seconds.

Visit Your AI Tool

Open Claude, ChatGPT, Grok, Gemini, or Perplexity. The extension automatically detects which platform you're on.

Start Monitoring

The floating widget appears automatically. Click to expand and see detailed usage stats. That's it.

Ready to Take Control?

Join power users who never hit token limits anymore

Legal

Privacy Policy

AI Limit Checker is built with privacy-first principles. Your data belongs to you.

Last updated: April 16, 2026

1. Data Collection

AI Limit Checker does not collect personal data, chat content, prompts, or account credentials.

2. Local Processing

Usage indicators are processed locally in your browser to help you monitor token and session limits.

3. No Third-Party Tracking

We do not use analytics trackers, ad trackers, or behavioral profiling scripts.

4. Permissions

Extension permissions are used only to provide core monitoring features on supported AI platforms.

5. Open Source Transparency

The source code is publicly available, so anyone can audit how data is handled.

6. Contact

For privacy questions or concerns, please open an issue in the GitHub repository.