Frequently asked questions

Can't find your answer? Contact us.

Are the tools really free?

Yes. Every tool on myDevTools is free to use, with no sign-up and no subscription.

Is my data private?

Yes. All tools run in your browser. The text, JSON, images and tokens you enter are never uploaded to our servers.

Do I need to create an account?

No. Open a tool and start using it right away.

Do the QR codes I create expire?

No. The QR codes are static: the data is encoded directly in the image, so they never expire and keep working forever.

What formats can I download QR codes in?

PNG, SVG and JPG. Use SVG when you need to print at a large size without losing quality.

Can I add my logo to a QR code?

Yes. Upload your logo in the QR Code Generator and it is placed in the centre. Keep it small and test-scan the code before printing.

Does the JSON parser send my JSON anywhere?

No. JSON is validated and formatted locally in your browser, so it's safe to use with sensitive payloads. The JWT decoder only decodes tokens; it does not verify signatures.

Something isn't working. What should I do?

Try refreshing the page, then email us at myDevsTools@gmail.com with the tool name and what happened.

Can I suggest a new tool?

Please do. Send your idea to myDevsTools@gmail.com.