Border-Radius Generator

Small Developer Utilities That Save Real Time

Border-Radius Generator is a free online tool on KST Tool Web that runs entirely inside your own browser. Nothing you enter is uploaded, there is no account to create, and there is no limit on how often you use it.

Every developer keeps a mental list of tiny conversions that break concentration: decoding a JWT to see why a request is rejected, pretty printing a minified JSON payload from a log line, converting a Unix timestamp into something a human can read, or checking a regular expression against real input before shipping it. None of these are hard problems. They are just frequent enough that switching to a terminal, remembering the exact flag, and switching back costs more attention than the task deserves.

These utilities are deliberately kept as single purpose pages. There is no project to create, no file to save, and no account to sign into. Open the page, paste the value, read the answer, and go back to what you were doing. The processing happens in your own browser, which is the part that actually matters when the payload you are debugging contains a session token, an internal hostname, or customer data from a staging environment.

What border-radius generator does specifically

Files up to roughly 2 MB are comfortable here; beyond that, performance depends more on your device than on the tool. It accepts text as input and produces text, which keeps the page focused on one job instead of burying it inside a general purpose editor. The controls on this page map directly to what the operation actually needs, so there are no settings present purely to look configurable.

How To Use Border-Radius Generator

Here is the quickest way to get a usable result from Border-Radius Generator:

1. Paste or type your text into the input field. There is no practical length limit for normal documents.
2. Set the options for this tool. Each one changes how the text is interpreted, so it is worth a quick read the first time.
3. Run the tool and review the output in the result area.
4. Copy the result. Keep your original text until you have confirmed the output is what you expected, since the change cannot be undone here.

Who This Tool Is For

Typical reasons visitors open Border-Radius Generator:

• explaining a payload to a colleague who cannot read it raw
• inspecting a token to work out why authentication keeps failing
• preparing a fixture for a test case
• reformatting a minified payload copied out of a log line

A Note On Pasting Production Data

Browser based processing means the value you paste is handled by JavaScript on your own machine and is not transmitted to a server. That is a genuine privacy improvement over tools that post your input to a backend, but it is not a licence to paste anything at all. Your clipboard history, browser extensions, and any screen recording software still see what is on the page.

The practical rule most teams settle on is to decode structure freely and treat secrets separately. Decoding a JWT to inspect its claims is fine, because the payload is base64 and not encrypted in the first place. Pasting a live signing key, a production database URL, or a customer record is a different matter and belongs in a local script instead. When you are debugging a real incident, redact the sensitive fields first and work with the shape of the data rather than its contents.

Frequently Asked Questions

Is Border-Radius Generator free to use?

Yes. Border-Radius Generator is free with no account, no sign up, and no usage limit. There is no paid tier that unlocks extra features, and results are not watermarked.

Is my data uploaded to a server?

No. Border-Radius Generator runs entirely in your browser using JavaScript. Whatever you paste or select is processed on your own device and is never transmitted to KST Tool Web or to any third party. You can confirm this by opening your browser's network tab while you use the tool.

Do I need to install anything?

No. Border-Radius Generator runs in any modern browser on desktop, tablet, and phone. There is no extension, plugin, or download involved.

Does it work offline?

Once the page has loaded, browser based tools keep working even if your connection drops, because the processing happens locally. You will need a connection again to load a different page.

Do I need to create an account?

No. There is no registration, no email required, and no trial that expires. Open the page and use it.