Tabreon is a browser-based utility platform with free tools for developers, creators and everyday tasks, including QR codes, JSON formatting, UUIDs, PDF and image tools. It needs no installation and no account.

Are my files uploaded to a server?

For most tools, no. Processing happens in your browser, so the file stays on your device. A small number of tools need a brief server step, and each tool page says which applies.

How can I check that a tool is really running locally?

Open your browser developer tools, go to the Network tab, run the tool on a file, and check that the file is not sent in any request. This works for any site that claims local processing.

Because most processing runs on your device, there is no file-conversion server bill to pass on to you. Any advertising on the site is clearly labeled and sits beside content, not in front of your download.

Do I need an account?

No. Tools work without signing in. An optional account, using an emailed sign-in link, is only for features that need to remember something about you.

Which tools need a brief server step?

HEIC, TIFF and SVG conversions and GIF to APNG use a short server step. Every tool page carries a badge showing whether it runs locally or needs that step, and the All tools page lists the badge for each tool.