Your files never leave your machine
The converters read, transform and write your files entirely inside your browser. This site has no server side: nothing is uploaded, nothing is stored, nothing is looked at. You can verify it yourself — open a converter page, disconnect from the network, and convert a file anyway: it works.
No account, no cookies
There is nothing to sign up for and no cookie is set. The site shows no consent banner because it has nothing to ask you to accept.
What is stored in your browser
Two things, in your browser's local storage, on your device only. Neither is ever transmitted:
- Your theme preference (light or dark), so the site opens the way you left it.
- A short history of your recent conversions on some tools — four entries at most, to save you retyping a value.
Clearing your browser's site data removes them permanently.
Audience measurement
The site uses Vercel Web Analytics and Vercel Speed Insights, provided by the host. They count page views and measure loading times. They set no cookie, create no persistent identifier, and do not follow visitors across sites. The scripts are served from calcspark.com, not from a third-party domain.
No third parties
The site loads no external resources: no fonts from Google Fonts, no libraries from a CDN, no social buttons, no advertising pixels. Its security policy (CSP) forbids it technically: by default the page is allowed to load nothing from outside. The share buttons are plain links — they load nothing and send nothing until you click.
Hosting
The site is hosted by Vercel Inc. Like any host, Vercel processes the technical logs needed to serve pages (IP address, page requested, timestamp).
Your rights
Since the site holds no data that identifies you, there is nothing on our side to access, correct or delete. The data stored in your browser is under your control and is cleared from your browser's own settings.