Dev Toolbox is a free and open-source collection of 15 developer utilities for everyday tasks, delivered as a web app built on the T3 Stack.
What is Dev Toolbox?
Dev Toolbox is a collection of everyday developer tools presented as a Next.js web application. It accepts inputs such as URLs, passwords, text, and code files, and outputs transformed results like encodings, hashes, minified code, or converted formats. The project is maintained on GitHub under the username Jcanotorr06 and is free to use and modify.
Key Features
- Temporary Email — Provides disposable email addresses to receive messages without creating a persistent account.
- Password, Lorem Ipsum, and Hash Generators — Creates random passwords, placeholder text, and hash values with a single click.
- URL Parser, YAML/JSON/CSV, Number Base, and cURL Converters — Transforms between formats and parses URLs or cURL commands for easier analysis.
- Base64, Hex, and URL Encoders/Decoders — Converts data to and from these common encodings.
- JSON, HTML, CSS, and JS Beautifiers/Minifiers — Formats or compresses code to improve readability or reduce size.
- Built on the T3 Stack — Uses Next.js, TypeScript, Tailwind CSS, DaisyUI, Zustand, Framer Motion, and TanStack Query for a modern frontend.
- Open Source with Community Contributions — The repository is publicly available on GitHub and welcomes contributors through contributing guidelines.
Who is it for?
Dev Toolbox is for software developers who need quick, browser-based utilities for encoding, generation, and conversion tasks. It suits frontend developers minifying stylesheets, backend developers converting cURL requests to code, and QA engineers using temporary email for testing sign-up flows. Open-source contributors can also use it as a project to extend with new tools.
What can you do with Dev Toolbox?
- Frontend developers: Beautify or minify JSON, HTML, CSS, and JavaScript to debug formatting or prepare production files.
- Backend developers: Parse URLs, convert YAML to JSON or CSV, change number bases, and transform cURL commands for API work.
- Security testers: Encode and decode Base64, Hex, and URL payloads, or generate hashes for password testing.
- QA engineers: Use temporary email addresses to verify registration and email workflows in development environments.
How does Dev Toolbox work?
To run Dev Toolbox locally, clone the repository, execute yarn install to install dependencies, then start the development server with yarn dev. The app is built with Next.js on the T3 Stack, so it runs as a standard web application in the browser.
FAQ
Is Dev Toolbox free?
Yes, Dev Toolbox is free and open source. The GitHub repository includes a license badge and is publicly accessible.
What tools are included?
Dev Toolbox includes a temporary email tool, generators for passwords, lorem ipsum, and hashes, converters for URL, YAML/JSON/CSV, number base, and cURL, encoders/decoders for Base64, Hex, and URL, and beautifiers/minifiers for JSON, HTML, CSS, and JS.
Can I contribute to Dev Toolbox?
Yes, the project encourages contributions. The README references a CONTRIBUTING.md file with branching strategy and local development environment guidance, and a contributors graph is displayed in the repository.
Does Dev Toolbox require registration?
The README does not mention any account creation or authentication, suggesting the tools are accessible without logging in.
What tech stack powers Dev Toolbox?
Dev Toolbox is built with Next.js, TypeScript, Tailwind CSS, DaisyUI, Zustand, Framer Motion, and TanStack Query, all part of the T3 Stack bootstrap created with create-t3-app.







