Safe Mail Link Check v0.1.1 is now available
Safe Mail Link Check has been updated to v0.1.1. The build now machine-checks that the shipped files contain no code that communicates with external servers. There are no feature or UI changes.
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News
Announcements about new tools and updates.
Safe Privacy Gate v0.1.9 is now available
Safe Privacy Gate has been updated to v0.1.9. The build now machine-checks that the shipped files contain no code that communicates with external servers. There are no feature or UI changes.
Learn moreSafe Privacy Mask v0.1.4 is now available
Safe Privacy Mask has been updated to v0.1.4. The build now machine-checks that the shipped files contain no code that communicates with external servers. There are no feature or UI changes.
Learn moreFind My Age v0.1.1 is now available
Find My Age has been updated to v0.1.1. This is a maintenance release that strengthens our pre-release checks; there are no feature or UI changes.
Learn moreWe have started writing on DEV Community
We have started writing on DEV Community. The first post is “After Shipping 8 Chrome Extensions, These Are the 5 Rules I Always Give AI Agents”: the five decisions an AI agent is never left to make on its own when it writes a Chrome extension — adding or broadening permissions, adding network requests, touching unrelated files, pulling in dependencies, and changing how data flows. The posts are written in English.
Read on DEVSite Operator Check v0.8.2 is now available
Site Operator Check is now on the Chrome Web Store. It shows what a page states about its own operator, with an excerpt of where each statement was found. The panel appears only when you press the toolbar icon, never on its own. Company name, address, governing law, jurisdiction and where data is stored and sent are shown as separate lines, each marked Stated, Hint or Not confirmed. It makes no safety judgement.
Learn moreWe have started writing on note
We have started keeping a development log on note, a Japanese writing platform. The first post is about why the log exists at all. It covers the parts the product pages leave out — whether a tool was worth building, how far AI was used and where it deliberately was not, and what went wrong on the way to release. The articles are written in Japanese.
Read on noteCopy & Prep v0.2.0 is now available
Copy & Prep has been updated to v0.2.0. You can now delete what you collected straight from the toolbar popup: the “×” on a row drops that one item, and “Clear all” at the bottom removes everything after asking you to confirm. Throwing away a stray capture no longer means opening the settings tab. Editing, reordering, tidying up and the output settings still live there.
Learn moreCopy & Prep v0.1.0 is now available
Copy & Prep, a Chrome extension that collects only the passages you pick with the right-click menu across as many pages as you like, then lets you fix the order and the line breaks before copying it all at once, is now available on the Chrome Web Store. Tidying always shows you the before and the after first, and applies nothing until you say so.
Learn moreSafe Mail Link Check v0.1.0 is now available
Safe Mail Link Check, a Chrome extension that shows a confirmation dialog with the real destination before a link opens in Gmail, Outlook on the web, or Yahoo! Mail (Japan), is now available on the Chrome Web Store. It never rewrites links and never opens them for you.
Learn moreFind My Age v0.1.0 is now available
Find My Age, a Chrome extension that shows how old you and your family were on a date you select on any web page — with the Japanese era year, the weekday, and how long ago it was — is now available on the Chrome Web Store.
Learn moreSafe Privacy Gate v0.1.8 is now available
Safe Privacy Gate has been updated to v0.1.8. The copyright and privacy documents have been revised: the terms covering the program source code are now stated explicitly, and enquiries are now handled solely through the support page on our official site.
Learn moreSafe Privacy Mask v0.1.3 is now available
Safe Privacy Mask has been updated to v0.1.3. The copyright and privacy documents have been revised: the terms covering the program source code are now stated explicitly, and enquiries are now handled solely through the support page on our official site.
Learn moreSafe Attachment Check v0.1.2 is now available
Safe Attachment Check has been updated to v0.1.2. The first-run guide now opens the privacy policy, terms, disclaimer, and copyright documents directly. The copyright and privacy documents were also revised, and enquiries are now handled solely through the support page on our official site.
Learn moreSafe Night Check v0.1.2 is now available
Safe Night Check has been updated to v0.1.2. The first-run guide now opens the privacy policy, terms, disclaimer, and copyright documents directly. The copyright and privacy documents were also revised, and enquiries are now handled solely through the support page on our official site.
Learn moreSafe Privacy Mask v0.1.2 is now available
Safe Privacy Mask has been updated to v0.1.2. The settings page now shows a short getting-started guide on first install (its display state is kept only on your device, in chrome.storage.local), and the "Common only" country choice is now preserved correctly.
Learn moreSafe Privacy Gate v0.1.7 is now available
Safe Privacy Gate has been updated to v0.1.7. Sends made with the Enter key on AI chat sites are now checked, send-button detection on chat composers has been improved, and the "Email address" preset is now off by default on fresh installs (you can enable it anytime) to avoid excessive warnings on sign-in forms.
Learn moreSafe Attachment Check v0.1.1 is now available
Safe Attachment Check has been updated to v0.1.1, with small refinements to wording and display.
Learn moreSafe Attachment Check v0.0.1 is now available
Safe Attachment Check, a Chrome extension that shows the hidden information inside a file attachment — GPS location, author names, tracked changes, hidden sheets — on your device before you send, is now available on the Chrome Web Store.
Learn moreSafe Night Check v0.1.1 is now available
Safe Night Check has been updated to v0.1.1. The first-run guide state is now kept only on your device (chrome.storage.local), along with small wording and display refinements.
Learn moreSafe Night Check v0.0.1 is now available
Safe Night Check, a Chrome extension that adds a gentle pause before you send a Gmail message during the night hours you set, is now available on the Chrome Web Store.
Learn moreSafe Privacy Mask is now available
Safe Privacy Mask, a Chrome extension that masks likely personal or confidential strings on your device before you send, is now available on the Chrome Web Store.
Learn moreSafe Privacy Gate is now available
Safe Privacy Gate, a Chrome extension that checks for confidential or internal information inside your browser at the moment you send to AI tools or web forms, is now available on the Chrome Web Store.
Learn moreOur official site legacy-tools.dev is live
The official Legacy Tools website is now live, with tool overviews, guides, and support information.