About PostMock

PostMock is a free online tool that lets anyone create realistic-looking fake iMessage and text message screenshots in seconds — no sign-up, no watermark, no cost. It was built for content creators, meme makers, designers and storytellers who need believable chat mockups for videos, social posts, presentations and parody.

Why we built it

Most existing fake-screenshot tools look dated, plaster watermarks on your exports, or feel clunky on a phone. We wanted one that is genuinely nice to use, looks authentic, and runs entirely in your browser so your content stays private.

Privacy first

Everything happens locally in your browser. The messages you type and any avatar you upload never leave your device — nothing is uploaded to a server. When you close the tab, it's gone.

Please use it responsibly

PostMock is intended for entertainment, parody, education and mockups. Please don't use it to deceive, harass, defraud or impersonate real people. Creating fake screenshots to mislead others can be illegal in many places — you are responsible for how you use what you create.

Get in touch

Have feedback or a feature request? Head to our contact page.