Optional: sort a pasted list of subject lines
Copy the subject lines from your inbox, one per line, and paste them here. The page sorts them on this device into “look at this” and “probably a sign-up email”. It stays on your device.
Starting…
Your files stay on this device
The page reads your files into memory in this tab and does the work there. Nothing is uploaded, emailed or copied to a server. The page’s security setting (a Content Security Policy) also stops it from sending anything out, and its libraries load from the same site as the page.
- No waiting queue and no cloud folder.
- Press Reset or close the tab, and the files are gone from memory.
- You can test it: switch the wifi off once the page has loaded, and it still works.
Why a flood of sign-up emails is a warning
Being signed up to hundreds of mailing lists at once is called subscription bombing. The welcome emails are real but harmless. The danger is the one email hidden among them, such as an order confirmation for something bought with your card, a delivery to a new address or a password change on one of your accounts. The Swiss National Cyber Security Centre reported an increasing number of cases in February 2026 and advised searching for words such as password, payment, order and security (Swiss National Cyber Security Centre).
How this page works
It builds search text from the dates and the app you choose, using the search words each company lists on its own help page. You copy the text into your email yourself. The page has no access to your inbox and contacts nobody. The optional sorter reads pasted subject lines inside this tab.
What this page cannot do
It cannot see your email or tell whether an account was broken into. It cannot stop the flood: most email services let you block senders or mark messages as spam, and the flood usually stops within a few days.
Questions and answers
Why am I suddenly getting hundreds of sign-up emails?
Someone may have signed your email address up to many websites at once, usually to bury one real email, such as an order made with your card or a password change. Search your inbox for order, payment and password between the dates of the flood.
Is subscription bombing dangerous?
The sign-up emails themselves are usually harmless. The risk is the email they are hiding. Check your card statements and the accounts you use, and change your email password.
Does this page read my email?
No. It only writes search text for you to paste into your own email app. It never connects to your inbox.
How do I stop the emails?
Mark them as spam or block the senders in your email app. Most floods stop within a few days. Unsubscribe from the rest once you have found and dealt with anything important.
Who made this?
UtilForge makes it. UtilForge is a website of free cybersecurity tools and small calculators. The About page explains why the tools were made, and the Contact page is the way to reach us.
Is this a scam site?
A person does not have to take UtilForge's word for it, so here are things to check. This page does not ask for payment, an account or card details. The tool is free. UtilForge also sells optional packs of tools separately, on Gumroad, and this tool works without them. The page carries a security setting (a Content Security Policy, a rule the browser enforces) that forbids it from sending anything out, so your files cannot be uploaded from here. To test it, open the page, switch the wifi off and use the tool. It carries on working, because the page and its libraries are already on your device.
What happens when I close the page?
Nothing is kept. While the page is open, your files sit in the memory of the browser tab. The page does not use cookies, local storage, session storage or IndexedDB (the browser's built-in database), and it puts nothing about your files in the page address. Closing the tab, or pressing Reset, drops them from memory. The one thing that stays is a file you save yourself with the Download button. Your original files are never changed.
Does it cost anything, and do I need to sign in?
No. The tool is free, and you can start straight away. UtilForge also sells optional packs separately, such as Redaction Studio ($29 to own) and Family Safety Tools (pay what you want, including nothing). This tool does not need either.
Using these checks often?
Family Safety Tools puts all fifteen checks in one folder on your own device, so they work with the internet off. Pay what you want, including nothing.
See Family Safety Tools From $0