About Owreeka

What it does

Compress an image before emailing it. Merge two PDFs. Pretty-print a blob of JSON. Convert a HEIC photo from an iPhone into something Windows will open. Turn a 3D model into pictures. Work out a loan repayment. Each of these is a two-minute job, and each of them usually means finding a site that wants an upload, an account and a wait.

The tools here are grouped into image, PDF, text, developer, colour and calculator sections, and every one of them opens instantly and works immediately. Signed-in users also get IntroSpeak, an AI English conversation buddy you talk to out loud; it is the one feature that sends what you say to AI services, as the privacy policy explains.

Why it runs in your browser

Modern browsers can do this work themselves. Canvas can re-encode an image, the Web Crypto API can hash a string, and libraries loaded into the page can read and write PDFs. There is no technical reason to send a file to a server first.

So we do not. Your file is opened locally and processed locally. It is faster, it works on a bad connection, and it means a document you would not want to hand to a stranger stays on your own machine. It also means we have no storage bill and no breach to disclose, which is a reasonable arrangement for everyone.

Who runs it

This site is operated by Hung Quoc Nguyen. It is funded by advertising, which is what keeps every tool free and free of sign-up walls. Features that cost real money to run, such as IntroSpeak, give signed-in users a few free uses a day and then charge a prepaid wallet.