Random chat message generator
This tool creates fake two-person chat threads so you can fill messaging UIs, conversation views, and notification previews with realistic placeholder data. The conversation alternates between two named participants with timestamps that advance naturally.
When you need this
Building a chat feature without realistic placeholder data leads to design problems that only surface once real users arrive. Common scenarios where this generator helps:
- UI component development — stress-testing bubble layout, avatar alignment, and timestamp grouping before wiring up a backend
- Design mockups and presentations — populating a Figma or Storybook frame with a believable conversation so stakeholders can evaluate the visual design rather than focusing on “lorem ipsum” text
- Demo environments — seeding a pre-sales demo or onboarding walkthrough with a conversation that flows naturally without exposing real user data
- Screenshot and documentation — creating product screenshots or help-centre images that need realistic chat content
How it works
The generator alternates the sender between your two participants for each message. Message text is drawn from a pool of short conversational lines covering greetings, questions, replies, and reactions, so the thread reads like a casual exchange. Timestamps start at a base time and each subsequent message adds a random gap between roughly ten seconds and two minutes, producing a believable chronological flow. Because lines are chosen independently, every thread differs.
JSON output format
The JSON copy returns an array where each item has this shape:
[
{ "sender": "Alex", "text": "Hey, are you free later?", "time": "14:32" },
{ "sender": "Jordan", "text": "Yeah, what's up?", "time": "14:33" }
]This maps directly into common chat component patterns — drop it into a React state initialiser, a Storybook story arg, or a fixture file. The time field is a formatted string (HH:MM); if your component needs a Unix timestamp, convert it in your fixture wrapper.
Tips and examples
- Generate a thread of twenty messages to test bubble alignment, sender colours, timestamp grouping, and scroll behaviour near the bottom of the viewport.
- Use short participant names (e.g. “Al” vs “Jo”) to see how the layout behaves at minimum label width, then switch to longer names like “Bartholomew” to test overflow handling.
- Generate multiple batches and concatenate the JSON arrays to simulate a long conversation history for infinite-scroll testing.
- The default speakers are Alex and Jordan — generic and gender-neutral, which avoids unintended connotations in screenshots or demos.