Frequently Asked Questions

What is Dev Tools Online?

Dev Tools Online is a free collection of browser-based developer utilities — including hash generators, URL encoders, Base64 converters, JSON formatters, and more — designed for developers who need quick, reliable tools without leaving the browser.

Are these tools free?

Yes. All tools are completely free with no sign-up, no rate limits, and no premium tier.

Do I need an account?

No. All tools are accessible immediately without registration.

Is my data sent to your servers?

No. All processing is client-side. Your input data never leaves your browser.

Are the outputs safe to use in production?

Our tools are designed for accuracy, but you should always verify critical output independently before using it in production systems. Do not enter sensitive credentials or private keys into any online tool.

Which hash algorithms are supported?

We support MD5, SHA-1, SHA-256, SHA-512, and other common algorithms. Check each tool's page for the full list.

Can I use these tools offline?

Once a page has loaded, most tools continue to work without an internet connection since processing is local.

Which browsers are supported?

All modern browsers including Chrome, Firefox, Safari, and Edge. Some tools rely on modern Web APIs and may not work in older browsers.

Do you log the data I enter?

No. We do not collect or store any input data. Anonymous analytics such as page views may be collected to improve the site.

How do I report a bug or request a tool?

Use our Contact page. We read every message and aim to respond within two business days.