300+ browser-based tools, no signup, and nothing you type leaves the page

The brief in their words.

• Our own product, not a client's.
• Something genuinely useful that did not depend on advertising to pay for itself.

What actually shipped.

• 300+ calculators, converters and utilities, on the way to a target of 1,000.
• Every tool runs in the browser through WebAssembly — PDF editing, OCR, background removal — with no server doing the work.
• No account required to use anything.
• A search and category system rebuilt after launch, once it became clear the index was the product.

Not in the brief. Proposed by us.

• Doing the compute locally rather than on a server. It costs more engineering and it is the entire privacy argument.
• A generator that lets a tool be built inside a sandbox, so the catalogue can grow without a release each time.

What keeps it safe.

• Nothing you type leaves the page. The files you drop in are processed in your own browser, so there is no upload to breach.
• No account means no password database and no personal data to lose.
• Locked down at the edge — HSTS preloaded for two years, framing denied outright, and a Content-Security-Policy generated fresh for every request.
• Admin access is rate limited, compares credentials in constant time, and writes every privileged action to an audit log with actor, IP and timestamp.

Pointed at customers and revenue.

• No signup is the whole funnel: a visitor uses the thing before deciding anything.
• Privacy is the differentiator, not the ad count. Competitors are ad-funded AND send your input to their servers; we kept the second half out of it.
• 300+ entry points into the same site, each answering a different search.