Frequently Asked Questions
We built FreeDeveloperTools around one idea: everyday developer utilities shouldn't require an account, a paywall, or sending your data to a server. Below are the questions people ask us most often, grouped by topic — if something's missing, the Contact Us page reaches us directly.
General
Are these developer tools really free?+
Yes, every tool on this site is completely free to use, with no signup, account, or usage limits. We plan to keep it that way, supported by lightweight, non-disruptive advertising rather than subscriptions or paywalls.
Do I need to create an account to use a tool?+
No. There are no accounts, logins, or email addresses required anywhere on the site. Every page is usable the moment it loads.
Can I use these tools for commercial projects?+
Yes. Both the tools themselves and any output they produce (formatted JSON, generated passwords, QR codes, and so on) can be used for personal and commercial work. See our Terms of Use for the full details.
Can I request a new tool?+
Yes — email us via the Contact Us page with the tool name and a short description of what it should do. We prioritize requests that come up often.
Why does the site mention the year 2026?+
We keep titles and copy dated to the current year so the site reflects that it's actively maintained, rather than looking like an abandoned page from several years ago.
Privacy & Security
Do you store the data I paste into a tool?+
No. Almost every tool runs entirely client-side in your browser using JavaScript. Your input, whether it's JSON, a password you're generating, or an image you're compressing, is processed locally and never uploaded to our servers.
Is the DNS Lookup tool different from the others?+
Yes — DNS lookups genuinely require querying DNS infrastructure, which a browser can't do alone. That one tool sends your domain query directly to Google's public DNS-over-HTTPS API over HTTPS; no other tool on the site makes any external request.
Do you comply with GDPR?+
Yes. We use a Cookiebot consent banner for EU/EEA visitors so you can control non-essential cookies, and our Privacy Policy documents what limited data we do collect (aggregate analytics) and your rights under GDPR and CCPA.
Why do you show ads if the tools run in my browser?+
Ads help cover hosting and ongoing development costs so every tool can stay free and unlimited, without requiring an account or subscription. Ad placements are sized in advance so they don't shift content around while you're using a tool.
Using the Tools
Do the tools work offline?+
Once a tool page has loaded, most of them continue to work without an internet connection, since all the logic runs locally in JavaScript already downloaded to your browser. The DNS Lookup tool is the one exception, since it needs a live network request.
Will these tools work on my phone?+
Yes, every tool is built mobile-first, so the input, output, and controls are all usable on a phone screen without pinch-zooming or horizontal scrolling.
Can I share a tool's result with a teammate?+
Yes, use the Share button at the top of any tool page to copy a direct link (or use your device's native share sheet), so a teammate can open the same tool instantly.
Which browsers are supported?+
All current versions of Chrome, Firefox, Safari, and Edge are supported. A few tools rely on modern browser APIs (like the Web Crypto API or Canvas), which have been standard in all major browsers for several years.