"PostMock is a free, watermark-free fake screenshot generator that lets creators build realistic iMessage, WhatsApp, Instagram, Tinder and lock-screen mockups in under a minute — all in their browser."
Right-click to download. SVG version available on request.
[image: PostMock logo]Brand wordmark: PostMock
Pronunciation: post-mock (two syllables, like "Postman" + "mockup")
Tagline: Free fake screenshot generator. No watermark.
PostMock is a free, browser-based generator for fake screenshots — iMessage chats, WhatsApp threads, Instagram DMs, Tinder matches, iPhone lock screens, Instagram Stories, and more. Built specifically for content creators who need realistic screen mockups for skits, story-times, parody videos, design presentations, and educational content.
The product is free with no watermarks ever, runs entirely client-side (messages never leave the user's browser), and includes AI-powered conversation generation, video export for animated message reveals, and an Instagram profile importer that pulls real names and avatars from public handles.
PostMock was founded in 2026 as a creator-first alternative to the cluttered, watermark-heavy tools that dominated the space.
All product screenshots can be captured directly from the live tool. Linked below.
Homepage / iMessage tool
The default tool — fake iMessage screenshot editor
postmock.com
Fake Tinder match chat
Dating-app skit content tool
postmock.com/fake-tinder-match
Fake Instagram Story
Polls, questions, viewer counts
postmock.com/fake-instagram-story
Fake iPhone lock screen
Stacked notifications from any app
postmock.com/fake-iphone-lock-screen
Templates index
70+ pre-filled scenarios across all tools
postmock.com/templates
Ideas for the angle of your piece, if useful.
Writing a piece? Making a video? Need a custom screenshot, a quote, or a quick chat with the founder? We answer fast.
our contact formPostMock is a free browser-based generator for fake chat and phone screenshots. It renders a realistic mockup of a messaging app — WhatsApp, iMessage, Instagram DM, Snapchat, Discord, Telegram, Messenger, Tinder, Bumble, Hinge, ChatGPT, Claude — from text you type, and exports it as a high-resolution PNG. It is used for memes, parody, comedy content, social media posts, UI mockups, presentations and app-design previews.
Yes, and there is never a watermark on any export. Without an account you get 5 free PNG downloads, plus 3 more for each of up to 2 shares (11 in total). After that a free Google sign-in is required, and signed-in users have unlimited downloads. Video exports require sign-in from the first download. There is no paid tier and no subscription.
No install. PostMock runs entirely in the browser on desktop and mobile — there is no app to download and nothing to configure. Editing and preview happen client-side; the screenshot is rendered in your own browser rather than on a server. You can start typing and see the preview without an account.
Describe a scenario in plain language ("two friends arguing about pizza") and PostMock writes the whole conversation for you, in short, natural, realistic messages. It can also continue an existing conversation by writing the other person's next replies. Tweets can be generated the same way.
18 generators in total: 12 chat apps (iMessage, WhatsApp, Instagram DM, Snapchat, Messenger, Telegram, Discord, Tinder, Bumble, Hinge, ChatGPT and Claude), plus tweet/X posts, iPhone call and FaceTime screens, Instagram Stories, WhatsApp Status, and iPhone lock screens with notifications. It also has 80 ready-made scenario templates and 27 how-to guides. A separate tool downloads public Instagram reels and videos.
PostMock is built for parody, comedy, memes, content creation, mockups and design previews, and it says so on every page. Using a fabricated screenshot to deceive, defraud, impersonate a real person, harass someone, or manufacture evidence is wrong and in many places illegal — that is not what the tool is for and it is explicitly discouraged in the product. Creators should label parody content as parody.
Yes. PostMock provides a press page with a description of the tool and usage guidance, and it is free to reference, review or link to. Creators are asked to label parody screenshots as parody.
Source: https://postmock.com/press · PostMock — free fake chat screenshot generator (WhatsApp, iMessage, Instagram, Snapchat).
