UpMocker is a free browser-based generator for creating realistic fake chat messages, social media posts, comments, stories, and emails, with native-looking detail for 20+ platforms.
What is UpMocker?
UpMocker is an online tool that produces screenshot-style mockups of digital communication. You choose a platform such as WhatsApp, iMessage, or Discord, set details like message count and appearance, and the tool generates a downloadable image that looks like a real conversation or post. It runs entirely in the web browser and requires no registration during its launch period. The service is hosted at upmocker.com.
Key Features
- Platform variety — Supports over 20 platforms including WhatsApp, Instagram, Discord, iMessage, Microsoft Teams, X, Bumble, Telegram, TikTok, MSN Messenger, LINE, Slack, Bluesky, Snapchat, WeChat, Signal, Reddit, Tinder, LinkedIn, and custom chat.
- Format categories — Create ChatAI conversations, chat messages, posts, comments, stories, or email screenshots from the same homepage route.
- AI chat generator — Generate fake ChatGPT, Claude, and Gemini conversations for AI-related mockups.
- Appearance controls — Switch between dark/light mode, phone frames, and status bars to match the target device.
- Conversation configuration — Set the type (e.g. direct message), number of people, and message count (for instance, 2 people and 7 messages) to tailor the mockup.
- Full editor — Open the full editor for granular customization, then download the result.
- Free during launch — No registration or payment is currently required.
Who is it for?
- UI/UX designers: Create realistic chat or post mockups to test layout variations and present design concepts to stakeholders.
