AI Apps
Free, in-browser tools. Everything runs locally in your browser — no sign-up, no API key, nothing leaves your device.
🪄 Prompt Builder
Fill the fields to compose a clean, structured prompt you can paste into any model.
Generated prompt
🔢 Token Estimator
A quick estimate of tokens, words and characters. Token count is approximate (~4 chars/token).
📝 Markdown Preview
Write Markdown on the left, see it rendered on the right.
🧬 JSON Formatter
Validate and pretty-print JSON. Great for checking MCP and tool config files.
🔠 Text Transformer
Convert case, slugify and clean text.