Self-hosting is free forever — clone the repo, deploy it yourself, no fees, no limits from us. The hosted cloud (mydevtools.tech) is a paid service.

What is the difference between self-hosting and MyDevTools Cloud?

Self-hosting is the same codebase running on your own infrastructure — you own the data and pay nothing to us. MyDevTools Cloud is our managed service; it is a paid subscription that covers hosting, sync, and backups.

Sensitive data is encrypted in your browser before it reaches the server where supported. The server stores encrypted blobs for vault-style data instead of readable plaintext.

Do I need an account to use the tools?

Google Sign-In is required to save your data across sessions. Many public tool pages can be explored before opening the full app experience.

Is this truly open source?

Yes. Full source code is available on GitHub under the GPL-3.0 license. You can audit, contribute, fork, or self-host it.

Does it work offline?

Many tools are fully client-side and can work without server processing. Tools that connect to external services, sync data, or send API requests need a network connection.

Does Unit Converter store or upload my data?

Unit Converter is designed for browser-based use. Many MyDevTools utilities process data locally; tools that require sync or external connections may send only the data needed for that workflow.

Do I need to install anything to use Unit Converter?

No installation required. Unit Converter runs directly in your web browser — just open the link and start using it.

Converters

Free Unit Converter OnlineUnit Converter on MyDevTools

323 units across 43 categories: length, mass, pressure, temperature, viscosity, electrical, polymer, and materials science. Answers "unit converter online", "convert km to miles", or "engineering unit conversion".

Use Unit Converter Browse All Tools

About Unit Converter

Convert between 323 units across 43 scientific and engineering categories including length, mass, pressure, viscosity, thermal, electrical, polymer, and materials science units. Runs entirely in your browser — no installation, no account required to try it.

Common Unit Converter use cases

Use Unit Converter when you need a fast, browser-based way to work with unit converter. It is useful during API debugging, code reviews, documentation cleanup, test data preparation, and quick checks on a new machine where you do not want to install a desktop app. Because MyDevTools keeps related utilities together, you can move from Unit Converter into nearby tools like formatters, converters, generators, encoders, decoders, and API helpers without leaving the same toolkit.

Example workflow

A typical workflow starts by pasting or typing your input into Unit Converter. Review the result, copy the cleaned or generated output, then continue with a related task such as validating a payload, decoding a token, parsing a URL, generating an identifier, or testing an API request. This makes Unit Converter part of a practical developer workflow instead of a one-off utility page.

Key Features

Unit Converter supports unit converter workflows for quick browser-based developer tasks.
Unit Converter supports unit conversion workflows for quick browser-based developer tasks.
Unit Converter supports measurement converter workflows for quick browser-based developer tasks.
Unit Converter supports scientific units workflows for quick browser-based developer tasks.
Unit Converter supports engineering units workflows for quick browser-based developer tasks.
Unit Converter supports SI units workflows for quick browser-based developer tasks.
Unit Converter supports metric converter workflows for quick browser-based developer tasks.
Runs in your browser — no install
Free to use, always

Unit Converter FAQ

Is Unit Converter free to use?

Yes. Unit Converter is available through MyDevTools with a public landing page and browser-based app experience.

Do I need to install anything for Unit Converter?

No. Unit Converter runs in a web browser, so you can open it from any modern device without installing a desktop utility.

What is Unit Converter best for?

What should I use with Unit Converter?

Most developers pair Unit Converter with related MyDevTools utilities such as formatters, parsers, encoders, generators, API tools, and security helpers.

How to Use Unit Converter

01
Open the tool
Click "Use Unit Converter Free" above — no download or account required.
02
Enter your data
Paste or type your input directly in the browser. Processing happens locally on your device.
03
Copy the result
Get your output instantly. Copy it, download it, or keep working in the same tab.

Open Unit Converter

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View all Converters tools