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PhantomThread makes your phone look — and sound — busy. It's a live message simulator that stages a pixel-accurate iMessage or WhatsApp conversation right in your browser: chat bubbles, typing indicators, tapback reactions, read receipts, and the real send, receive, and notification sounds. Flip on Auto mode and texts arrive on their own at realistic intervals, like your group chat is genuinely going off.
Waiting alone at a bar and want your phone buzzing like you have plans? Want to look deep in conversation at a party, in line, or around the office? That's what PhantomThread is for — it's theater for your phone, a live performance rather than a fake-screenshot generator. (It also earns its keep as a film and video prop, a skit and content-creation tool, a UI demo, and a notification-sound tester.)
Looking busy — or popular. Prop your phone up and let Auto mode make it buzz like your night is popping off; seem deep in conversation while you wait for someone; make an open-office afternoon look fully booked. It doubles as a film prop, a skit tool, a UI demo, and a notification-sound tester.
Not in the usual sense. Screenshot generators fabricate conversations to pass off as real after the fact. PhantomThread is a live simulator — the point is the performance in the moment: real sounds, typing bubbles, and texts arriving on their own. You can export an image of a staged chat, but the app is built for the show, not the receipts.
Yes — completely free. No account, no install, no ads. If it's useful to you, there's a tip jar in the corner.
No. Everything runs locally in your browser. Custom personas and settings are saved in your browser's local storage and never leave your device.
Yes. The persona editor lets you set a contact's name, avatar, and the pool of replies they text back. Personas can be exported and imported as JSON files.
Yes. Open Settings → Sounds and click any row (or drag an audio file onto it) to replace the send, receive, or notification sound for your session.
iMessage and WhatsApp, switchable from the Simulator panel — each with its own bubbles, colors, and chrome in light and dark mode. More platforms are planned.
Yes — the Export button (or the E key) downloads the current conversation as a PNG in the active platform's style.