About This Launch
DemoVexa is an early-access desktop app and npm CLI that reads your codebase and builds narrated, animated product demo videos without screen recording. It writes a script, adds a voiceover and renders MP4s in 16:9, 9:16 and 1:1.
It runs locally and needs Claude Code installed. Relevant code and docs go to Claude through your own account, and script text goes to ElevenLabs if you use its voices. There is a 14-day free trial, and paid plans start at $29 a month. The builds are unsigned.
Screenshots
Why I Built This
DemoVexa turns a software codebase into narrated product demo videos, so teams can update a demo by changing code instead of re-recording the screen. It is built for SaaS founders, developers, product marketers and agencies.
Launch Details
CategoryAI / ML
StageBeta
ListedOctober 21, 2026