webtoolz
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AI Tools

Developer utilities for building with AI — MCP configuration, Model Context Protocol tools, and more. All free and browser-based.

MCP Config Generator

Browse MCP servers, configure connections, and export config files for Claude, Cursor, VS Code, and more

AI Token Counter

Count tokens and estimate costs for GPT, Claude, Gemini, and more. 97%+ accurate, runs in your browser.

AI developer tools in your browser

webtoolz AI Tools help developers configure and connect AI systems without uploading data to a server. Every tool runs 100% in your browser — no sign-up, no rate limits, no tracking.

MCP Config Generator

Browse MCP servers, configure connections, and export config files for Claude, Cursor, VS Code, and more

AI Token Counter

Count tokens and estimate costs for GPT, Claude, Gemini, and more. 97%+ accurate, runs in your browser.

Frequently asked questions

What is the AI Token Counter?
It's a free tokenizer that covers 14 models — GPT-5.4, Claude Opus 4.6, Gemini 3.1 Pro, Grok 4, DeepSeek, Llama 4, and more. Paste your text, pick a model, and get a token count with an API cost estimate right away.
What is the Model Context Protocol (MCP)?
MCP is an open standard by Anthropic that lets AI assistants connect to external tools and data sources. It defines how clients like Claude Desktop, Cursor, and VS Code communicate with MCP servers that provide capabilities such as file access, database queries, and API integrations.
Which AI clients are supported by the MCP Config Generator?
The MCP Config Generator supports Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline. Each client has its own config format, and the generator produces the correct JSON for your chosen client automatically.
Is my data safe when using these tools?
Yes. All tools run entirely in your browser — nothing is sent to a server. Your text, API keys, and configuration data never leave your device. The token counter processes text locally using JavaScript tokenizers, and the MCP config generator strips sensitive values from share links.