Nothing leaves the tab
This is not a marketing promise. It is a line your browser enforces, and you can check it without taking our word for it.
- Is my schedule stored anywhere?
- No. It is neither uploaded nor saved by the site. It stays in the memory of the tab, and it is gone when you close it.
- What if I work on a confidential project?
- That is the intended case. You can cut the network before dropping the file, or install the site on your intranet.
- Are there cookies?
- None. No analytics, no session, no preference. That is why this site asks you nothing when it opens.
Check it yourself
Thirty seconds, nothing to install.
Open the Network tab
F12 in most browsers, then the "Network" tab. Leave it open.
Drop a schedule
The file is read, recalculated, the chart appears.
Look at the list
Nothing new shows up. Cut the network and start again: the workshop works just the same.
What prevents it technically
Every page carries a content security policy. Its connect-src 'self' line forbids the browser from opening a connection to another domain, whatever the code asks for. It is set twice, in the page and in the server's HTTP header.
form-action 'none': there is no form on this site, and there will not be one. object-src 'none' and frame-src 'none': nothing external is embedded.
The site loads no third-party resource: no font hosted elsewhere, no library from a CDN, no analytics tag.
What the server records
The site's access log keeps three things per request: a date, the response code, and the address requested without its query string. No IP address, no referrer, no user agent. Two lines of that log cannot be linked to each other.
What the counter counts
The home page shows a number of schedules opened. Here is exactly what produces it: after a successful read, the browser sends POST /compte?p=1&f=planning. A number and a family, in the query string, with no body. The server answers nothing and writes one line: the date, the family, the number.
There is no cookie, no identifier, no browser fingerprint. Your file's name, its size, its contents and its number of tasks do not go anywhere. A browser that signals it refuses tracking sends nothing at all, and a failed send is silent.
The total is recomputed on the server every hour and written straight into the page: the home page loads no script to display it.
Unplug it, and see
After a first visit, the site installs itself to work offline. Cut the network and reopen the page: the workshop opens, reads a schedule, computes and produces its files. A tool you can unplug no longer needs to be believed.