Put these tools on your own site

One line of HTML. No key, no account, no quota, and nothing your readers type ever leaves their own browser — including from us.

The terms, in full

Free, for anything: Commercial sites included. There is no key to request, no quota, no account and no invoice. It stays free because an embed costs us nothing to serve — the work happens in your reader’s browser, not on our server.
No upload — not by your site, and not by us: The tool has no network access at all: every embed is served with a Content-Security-Policy of connect-src ‘none’, so the browser itself refuses any request it might try to make. Whatever your reader pastes stays on their machine.
No tracking, no cookies, no analytics: The frame sets nothing and reads nothing. It cannot see your page, and we cannot see your readers.
Keep the attribution link: Each embed carries one line at the bottom linking back to the full tool. Do not remove, hide, crop or cover it. That link is the entire price, and the reason there is no other one.

Available embeds

Table Converter

Paste a table in any of 11 notations and get it back in any other — LaTeX booktabs, Markdown, CSV, SQL and the rest. No upload.

<iframe src="https://getopentools.com/embed/table-converter"
        title="Table Converter — OpenTools"
        width="100%" height="620"
        style="border:1px solid #e5e7eb;border-radius:12px;max-width:100%"
        loading="lazy"></iframe>

Open the embed on its own · the full Table Converter

Why it is an iframe

A one-line <script> widget would be easier to ship and worse for both of us. A script runs inside your page, with your permissions: it could read what your visitors type and you would have to take our word that it does not. A cross-origin iframe cannot. We cannot see your page and you do not have to trust us about it — which is the same guarantee we make to everyone who uses the tools directly.

Want a tool that is not here?

Embeds are limited to tools that take text and return text — no file pickers, deliberately. Asking a reader to hand a document to a frame inside a page they may not recognise is not a thing we want to teach anyone to do. If a text tool you want is missing, the project is MIT licensed and open to a request on GitHub.