API Key Validator

Test if your AI API key is valid. Supports Google Gemini, OpenAI, and Anthropic. Your key is never stored on our servers.

Read the Guide

🔒 Your API key is stored only in your browser's localStorage and is never sent to our servers.

How it works

  • Your API key is sent directly from your browser to the AI provider
  • No data passes through our servers
  • Keys can be optionally saved in your browser's localStorage

API Key Validator

Test and validate your AI API keys. Check if your Google Gemini, OpenAI, or Anthropic API key is valid and working. 100% client-side, your key never leaves your browser.

Key Features

✓Validate Google Gemini API keys
✓Validate OpenAI API keys
✓Validate Anthropic API keys
✓See available models count
✓100% client-side validation

100% Private & Secure

All processing happens directly in your browser. Your data never leaves your device — we don't upload, store, or have access to any of your content.

Instant & Offline-Ready

No server roundtrips means instant results. Once this page is loaded, the tool works even without an internet connection.

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