Job Interview Basics
Walk in ready.
- Behavioral interview
- Hostile executive
- Blue-collar trade
- Stretch role
Free & open source · Runs 100% on your machine
The simulator for conversations.
Practice interviews, negotiations, language, and difficult conversations with AI characters whose reactions evolve as you speak — all running locally on your computer. No account. No cloud. No telemetry.
Windows · macOS · Linux · Steam Deck — or build the Apache-2.0 source for free.
No cloud inference
No account
No telemetry
No subscription
Practice the conversation before it matters.
Four official scenario packs ship free with every copy — openly licensed and yours to remix — with premium expansion packs available on Steam:
Everyday Negotiation
Get to yes without giving in.
- Used car
- Apartment lease
- Freelance scope
- Customer-service refund
Language Café
Order the coffee in Spanish.
- Spanish coffee shop
- French hotel check-in
- Japanese convenience store
- English small talk
Difficult Conversations
Say the hard thing well.
- Coworker feedback
- Missed-deadline apology
- Boundary with a friend
- Ask for a raise
How a session works
Choose a scenario
Browse the library, read your player brief, and set the difficulty. Every scenario has goals, state variables, and events waiting to fire.
Talk it out
Type or speak. The character across the table pushes back, warms up, loses patience — its reactions evolve with every turn you take.
Watch the state shift
Live meters — credibility, composure, pressure — show the dynamic changing in real time. Say the wrong thing and you’ll see it.
Debrief. Then run it again.
A scored debrief shows what you said clearly, where you hedged, and the turning points. Adjust, rerun, improve. That’s the whole point.
Local-first is not a feature. It’s the architecture.
The conversations you most need to practice are exactly the ones you’d never type into someone else’s server. So there is no server.
| What | Where it runs |
|---|---|
| Language model | Your machine — llama.cpp |
| Speech-to-text | Your machine — whisper.cpp |
| Text-to-speech | Your machine — Kokoro / sherpa-onnx |
| Transcripts & scores | Your disk — SQLite, never uploaded |
| Telemetry | Nowhere — none is built in |
Don’t take our word for it
The code is open. And any time you like, one command runs a scripted conversation and confirms not a single byte left your machine:
npx convsim offline-smoke-test \
packs/official/job-interview-basicIt exits with an error if any subsystem so much as tries to reach an external host.
Have a look around
Current UI, placeholder art — real recordings land with the Milestone 1 launch.
Write your own scenarios. No code required.
A scenario pack is a folder of YAML files — the situation, the character, the scoring rubric, the safety rules. If you can describe a conversation, you can build one.
The built-in Creator Workbench lets you copy an official pack, edit, validate with one click, test in the browser, and export a shareable zip. Publish to Steam Workshop or hand the file to a friend.
scenario_id: ask_for_a_raise
title: The Salary Conversation
player_role:
brief: Make the case for the raise
you already deserve.
npc:
ref: ../npcs/your_manager.yaml
state:
variables:
rapport:
default: 50
visibility: visible