Maskly — Blur Private Data on Any Page

Blur emails, phones, cards and API keys on any page before you record, screenshot or share your screen. Nothing leaves your browser.

You are about to share your screen. Your inbox is open, the CRM is full of real customers, and there is an API key sitting in a config panel. You either scramble to close tabs, or you share anyway and hope nobody screenshots it. Maskly is one keystroke. Press Alt+Shift+M and every email address, phone number, card number, API key and address on the page blurs out. Nothing else about the page changes — same layout, same scroll position, same everything. Press it again when you are done. ★ THREE WAYS TO HIDE • Blur — a soft blur scaled to the text size, so small print and headings are equally unreadable. The best-looking option on video. • Block — solid blocks. Unmistakable, and the safest thing to hand a stranger. • Replace — swaps real values for realistic fake ones, so your demo keeps reading like a real product instead of a redacted document. ★ REPLACE MODE IS CONSISTENT Fake values are derived from the real value, so the same customer is the same fake person everywhere on the page, and two addresses at one company stay at one company. Your demo still makes sense. Reshuffle for a whole new cast whenever you want. ★ WHAT IT FINDS Email addresses · phone numbers · credit card numbers · API keys and tokens · IP addresses · SSNs · IBANs · street addresses · postcodes — plus any regular expression you write yourself, for your own account numbers and invoice IDs. Got something that should never be hidden — your demo account, your support address? Put it on the allowlist and Maskly leaves it readable. ★ BUILT FOR THE MOMENT BEFORE YOU RECORD • Masked screenshots — Alt+Shift+S saves the page to Downloads with everything already hidden. • Nothing flashes on load. Maskly can hold the page behind a curtain until its first pass finishes, so a value never appears for a frame while the page is still rendering. • Outline mode draws a hairline around everything being hidden, so you can check its work before you hit record. Turn it off for the take. • Uncertain matches get an obvious block instead of a convincing fake — a value Maskly is unsure about should stand out, not hide among the fakes. • A live count on the toolbar icon tells you how much is hidden right now. • Tell it to always mask on a site and it arms itself there the moment the page loads. ★ NOTHING LEAVES YOUR BROWSER Maskly makes no network requests of any kind. There is no account, no server, no analytics, no tracking. It reads the page to find sensitive values, hides them, and forgets them — what it found is never stored, logged, or transmitted. The only thing saved on your machine is your own settings and, if you ask for it, the hostname of a site you want armed automatically. ★ SIX LANGUAGES English, Español, Deutsch, Français, Português (Brasil), हिन्दी. ★ FEATHERWEIGHT Vanilla JavaScript, no frameworks, no build step, no remote code.