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Free, open-source tools that run in your browser. Nothing is uploaded. A Sapience initiative.

MCP ServersRegistry oficial1 estrellas1 forks● JavaScriptAGPL-3.0Actualizado today
ClaudeWave Trust Score
95/100
✓ Verified
Passed
  • ✓Open-source license (AGPL-3.0)
  • ✓Actively maintained (<30d)
  • ✓Clear description
  • ✓Topics declared
  • ✓Documented (README)
Last scanned: 10/11/2026
Install in Claude Code / Claude Desktop
Method: NPX · freethetools
Claude Code CLI
claude mcp add freethetools -- npx -y freethetools
claude_desktop_config.json (Claude Desktop)
{
  "mcpServers": {
    "freethetools": {
      "command": "npx",
      "args": ["-y", "freethetools"]
    }
  }
}
1. Run the command above in your terminal (Claude Code), or paste the JSON config into claude_desktop_config.json (Claude Desktop).
2. Replace any <placeholder> values with your API keys or paths.
3. Restart Claude. The MCP server and its tools appear automatically.
Casos de uso

Resumen de MCP Servers

# Free the Tools

**Everyday tools should be free.**

Everyday tools shouldn't cost money.<br>
They shouldn't come with ads.<br>
They shouldn't put your files at risk.<br>
They shouldn't be hard to find.<br>
So here they are: one place, every tool, free for everyone. Help us build the next one.

[freethetools.com](https://freethetools.com) is a growing shelf of everyday tools, such as compressing a PDF, that run entirely in your browser. There are no accounts, no limits and no ads, and nothing tracks you: the site keeps only anonymous daily totals, such as how often each tool is used and liked ([what's counted](https://freethetools.com/stats/)). Every page carries a Content Security Policy that stops it from sending your data to any other server, and the automated tests fail if a tool tries.

Free the Tools is a [Sapience Design](https://sapience.design) initiative, built in the open with anyone who wants to help.

[![CI](https://github.com/sapience-design/freethetools/actions/workflows/ci.yml/badge.svg)](https://github.com/sapience-design/freethetools/actions/workflows/ci.yml)
[![OpenSSF Scorecard](https://api.scorecard.dev/projects/github.com/sapience-design/freethetools/badge)](https://scorecard.dev/viewer/?uri=github.com/sapience-design/freethetools)
[![License: AGPL-3.0](https://img.shields.io/badge/license-AGPL--3.0-blue)](LICENSE)
[![npm](https://img.shields.io/npm/v/freethetools?label=npm%20package)](https://www.npmjs.com/package/freethetools)

## Use it

Open [freethetools.com](https://freethetools.com). That's it.

Developers and AI agents can read the catalogue at [`/api/tools.json`](https://freethetools.com/api/tools.json) (described in [`openapi.yaml`](openapi.yaml)) or [`/llms.txt`](https://freethetools.com/llms.txt).

## For AI agents

Claude, Cursor and other AI assistants can use the tools instead of installing software such as Ghostscript, ImageMagick or a Python package, and without sending files to a server. It is free, with no account or login. Files stay on the device either way. There are two channels, and both use one definition per tool ([ADR 0008](docs/adr/0008-tools-for-ai-agents.md)).

| Channel | For | Setup |
|---|---|---|
| The `freethetools` npm package, an MCP server on your computer | Claude Code, Claude Desktop, Cursor and other MCP clients | `claude mcp add freethetools -- npx -y freethetools mcp` |
| WebMCP on each tool page | AI agents inside a browser | None. Chrome and Edge support it in origin trials; other browsers ignore it. |

The package is published on [npm](https://www.npmjs.com/package/freethetools) and listed in the official [MCP Registry](https://registry.modelcontextprotocol.io/) as `io.github.sapience-design/freethetools`. It reads files by path, saves results in a `freethetools` folder in your home folder, and records every job in `library.jsonl`. It also has a command line for agents without MCP: `npx -y freethetools run <tool> '<json>'`. Setup for each client is in [docs/how-to/use-with-ai.md](docs/how-to/use-with-ai.md). The package source is in [packages/freethetools](packages/freethetools). There is no hosted MCP server, because the files would have to be uploaded.

## Why in the browser, and how far it goes

Services such as iLovePDF or CloudConvert process files on their own servers. Every file costs something to handle there, so free plans usually come with limits. Here the visitor's device does the work and the pages are static files, so a million visitors cost about what one does. That is why "free, with no limits" is a promise we can keep.

A browser can do more than most people expect. Ghostscript and qpdf run inside the page as WebAssembly, alongside pdf-lib, pdf.js and the image codecs, and the tools keep working offline once opened. Text recognition, translation and speech-to-text can run the same way. The gap between "needs a server" and "runs on your device" shrinks every year, and the tool list grows with it. Jobs a browser cannot do yet wait; we do not add a server to get there.

## Request a tool

[Open a tool request](https://github.com/sapience-design/freethetools/issues/new?template=tool_request.yml). Vote for existing requests with a 👍. Requests a maintainer accepts are labelled `wanted` and show on the site as open requests.

## Build a tool

Most tools take an afternoon. The [contributor guide](CONTRIBUTING.md) walks you through it:

```sh
git clone https://github.com/sapience-design/freethetools.git
cd freethetools
npm install
npm run new-tool -- text word-counter "Word Counter"
npm run dev          # http://localhost:4321/text/word-counter/
```

## How it works

| | |
|---|---|
| `tools/<group>/<tool>/` | One folder per tool: `tool.json` (name, search text, specs, questions), `Tool.astro` (the interface), `core.js` (the logic) and tests |
| `src/` | The site: layout, home and group pages, tool pages, API and search files, all built from the tool folders |
| `astro.config.mjs` | The Content Security Policy that keeps every page on its own origin |
| `worker/`, `migrations/` | The only server code: anonymous usage totals at `/api/stats/*`, stored in Cloudflare D1 |
| `packages/freethetools/` | The npm package: an MCP server and command line that run the tools on your computer. Build it with `npm run build:package` |
| `e2e/`, `tests/` | Browser tests and checks on the built site |
| `docs/` | Tutorials, how-to guides, reference and design decisions |

The site is static [Astro](https://astro.build) plus one small Worker for anonymous totals, hosted on Cloudflare Workers, which builds and deploys every merge to `main`. Read [docs/explanation/architecture.md](docs/explanation/architecture.md) for the reasoning.

## Project

- [Contributing](CONTRIBUTING.md) · [Code of conduct](CODE_OF_CONDUCT.md) · [Governance](GOVERNANCE.md)
- [Security policy](SECURITY.md): report vulnerabilities privately, never in a public issue
- [Changelog](CHANGELOG.md)

## Licence

Code: [AGPL-3.0](LICENSE), copyright © Sapience Design and contributors. Third-party parts are listed in [NOTICE](NOTICE).

"Free the Tools" and the Sapience name and logo are trademarks of Sapience Design and are not covered by the code licence. You are welcome to fork the code under a different name. See [TRADEMARKS.md](TRADEMARKS.md).
astrobrowser-toolscloudflare-pagesfree-toolsno-uploadopen-sourcepdfprivacywebassembly

Lo que la gente pregunta sobre freethetools

¿Qué es sapience-design/freethetools?

+

sapience-design/freethetools es mcp servers para el ecosistema de Claude AI. Free, open-source tools that run in your browser. Nothing is uploaded. A Sapience initiative. Tiene 1 estrellas en GitHub y su última actualización registrada es del 2026-10-10.

¿Cómo se instala freethetools?

+

Puedes instalar freethetools clonando el repositorio (https://github.com/sapience-design/freethetools) o siguiendo las instrucciones del README en GitHub. ClaudeWave también te ofrece bloques de instalación rápida en esta misma página.

¿Es seguro usar sapience-design/freethetools?

+

Nuestro agente de seguridad ha analizado sapience-design/freethetools y le ha asignado un Trust Score de 95/100 (tier: Verified). Revisa el desglose completo de comprobaciones superadas y flags en esta página.

¿Quién mantiene sapience-design/freethetools?

+

sapience-design/freethetools es mantenido por sapience-design. La última actividad registrada en GitHub es del 2026-10-10, con 17 issues abiertos.

¿Hay alternativas a freethetools?

+

Sí. En ClaudeWave puedes explorar mcp servers similares en /categories/mcp, ordenados por popularidad o actividad reciente.

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