About All The Tools

What is All The Tools?

All The Tools is a free, open-source collection of over 50 developer utilities that run entirely in your browser. From JSON formatters and Base64 encoders to CSS generators and Docker Compose converters, every tool is designed to help developers, designers, and technical professionals work faster without compromising their privacy.

Unlike many online tool websites that upload your data to remote servers, All The Tools processes everything client-side using JavaScript and Web APIs. Your code, data, and inputs never leave your device. There are no accounts, no tracking cookies, and no data collection beyond basic analytics.

Why we built this

As developers, we constantly need small utilities: decoding a JWT during debugging, converting JSON to CSV for a spreadsheet, generating a UUID for a test fixture, or formatting a SQL query to make it readable. The options are usually to install a desktop app, use a CLI tool, or paste your data into a random website and hope it is not being logged.

We wanted something different: a single, trustworthy destination where every tool works instantly in the browser, looks good on any screen, and respects your data. No sign-ups, no paywalls, no dark patterns.

All The Tools is built with Next.js, React, TypeScript, and Tailwind CSS. Every tool is covered by automated tests, and the entire codebase is open source.

How your data stays private

Every conversion, formatting, encoding, and generation operation happens inside your browser tab. When you paste JSON, type a regex, or upload an image, the data is processed by JavaScript running on your machine. Our servers never see it.

The only exception is the "What Is My IP?" tool, which necessarily makes a network request to determine your public IP address. Every other tool is 100% offline-capable once the page has loaded.

Technology stack

  • Framework: Next.js 16 with React 19 and TypeScript
  • Styling: Tailwind CSS with shadcn/ui components
  • Testing: Vitest with React Testing Library (800+ tests)
  • Crypto: Web Crypto API for hashing (no server dependencies)
  • Fonts: JetBrains Mono (code) + Inter (UI)

Created by

All The Tools is created and maintained by Fabrizio Zaffarana, a software engineer with over a decade of experience building web applications, APIs, and developer tools. Fabrizio is passionate about developer experience, clean interfaces, and open-source software.

Have feedback, a bug report, or a tool suggestion? Reach out via the contact page or open an issue on GitHub.