Privacy policy

Who runs this site

Revit Downgrade is made and run by one person, Phan Cong Vu Duc. For any question about your data, email [email protected].

Your files

Your file is sent to the server only when you press Downgrade. It is used only to convert it, and it is never shared or sold.

Your original is deleted as soon as the conversion succeeds. The original of a failed conversion is kept for up to 7 days, as the next section says. The converted file is deleted after 2 hours, or when you press Delete now. The page "How it works" lists every case.

The version checker reads files in your browser. Those files are not uploaded.

Files kept to fix a problem

If a conversion fails, your file and its log are kept for up to 7 days so the problem can be fixed, without you ticking anything; the page says so before you upload. They are used only for that. Press Delete my file on the error screen to delete them at once; once that page is gone, email your report code. After the file is deleted the server keeps the error message for 90 days, without the file name, any path or your address. If a converted file does not open, nothing is sent unless you tick the consent box and press Send; those files are also kept for up to 7 days.

Other data

Your network address is used to apply the upload limits. It is held only in the server's memory, is not written to disk, and is gone within two days.

The public usage totals rely on two one-way hashes made with a secret key kept on the server. One is of your network address, to count different visitors, and it is kept with the totals. The other is of a file's content, to recognise a file sent again. For a file that converts it is not stored. For a file that fails or does not open it is stored, with the code of its report if there is one, until a conversion or a check in Revit shows the file is fixed, which may be never. The hashes do not contain the address or the file, and a file cannot be rebuilt from its hash.

Server logs never contain file names or file content.

Cookies and your browser

The site sets no tracking cookies and shows no advertising. Your browser keeps your language choice and a list of your unfinished uploads, so that choosing the same file again can continue its upload.

Cloudflare

All traffic to this site passes through Cloudflare, which also counts page views with Cloudflare Web Analytics. That uses no cookies and does not follow you across sites. No other company receives your files or data.

Your choices

To have a report deleted early, or to ask anything about your data, email [email protected] and quote your report code if you have one.

Changes

If this policy changes, the new version is published here with a new date.