Modernize without rewriting.Document without archaeology.
Years of technical debt, gone in minutes — Replay captures real workflows and rebuilds your UI and documentation from video.
No credit card required · 2 free reconstructions included
Built for teams modernizing mission-critical systems
The Manual Modernization Trap
Why 70% of rewrite projects fail or run over budget.
The Old Way
Manual Reverse-Engineering
High risk of regressions. Infinite loops. Team burnout.
The Replay Way
Automated Extraction
Zero guessing. Pixel-perfect code. Strategic oversight.
The Documentation Gap
Nobody knows how logic works. Senior devs spend months reverse-engineering undocumented spaghetti code instead of building.
The Roadmap Freeze
18 months of 'modernization' means 18 months of zero new features. Business stalls while engineering plays catch-up.
The 'Broken' Delivery
Manual rewrites introduce regressions. You fix the code but break the business logic that worked for 10 years.
Everything you need to modernize
From video to deployed architecture. One unified system.
Video to code, mapped perfectly.
Turn screen recordings into pixel-perfect React architecture. Our engine analyzes layout, typography, and temporal state changes to recreate your interface 1:1. Need a fresh look? Run the video through our 19-step Reimagine pipeline to output a highly polished, modern UI.
From chaos to a living Design System. Instantly catalog every button, input, and state as reusable tokens. Replay outputs strictly modular, production-ready React components that build your library automatically.
We don't just build isolated screens. Replay understands temporal video context, mapping multi-page navigation, detecting state changes over time, and highlighting logic gaps across your entire user journey.
Create and edit components interactively. Powered by our Search/Replace agentic workflow — surgical changes that propagate globally without breaking surrounding logic.
Real-time collaboration. Build alongside your team with live cursors, comments and instant sync. Turn video into modular code together — one person extracts the layout, while another componentizes the UI into your shared library.
Ship without the tech debt. Instant API contracts, E2E test generation, and technical debt audits directly from the generated React architecture.
Import your source of truth. Connect your Figma or Storybook directly to Replay. The engine auto-extracts your brand's exact colors, typography, and spacing tokens. No more generic Tailwind classes — every generated React component strictly adheres to your company's UI guidelines.
Figma · Storybook
Infrastructure for AI Agents. Give your internal tools or external AI coding agents (like Devin) direct API access. Let them send a video and receive perfectly componentized React code or Playwright test scripts in return.
REST · Webhooks · Agent-ready
Built for every stage of the product lifecycle
From rapid prototyping to mission-critical modernization.
Legacy Modernization
De-risk your migration strategy.
Don't spend 18 months documenting spaghetti code. Record your legacy Mainframe, Oracle Forms, or SOAP apps, and let Replay extract the business logic into clean, componentized React architecture. Zero documentation required.
From black box to documented codebase
Three steps. No guessing. No archaeology.
Record
Capture user intent. Don't guess requirements. Replay records real user sessions, capturing DOM events, network flows, and business logic in action.
Extract
Structure the chaos. Our engine doesn't just copy screens. It identifies patterns to build a unified Component Library and Design Tokens from the raw footage.
Deploy
Code is just the start. Receive a fully synchronized Design System, atomic Component Library, and scalable React architecture. The complete source of truth, ready for production.
Data-Driven Growth
Stop guessing. Start saving. Calculate your modernization potential.
Estimate Savings
Based on 70% average time savings from pilot results.
Built for regulated environments
Your recordings, your control.
Configurable Retention
Default is processing-only with no storage. Configure retention policies to match your compliance requirements.
PII Detection
Automatic detection of sensitive data patterns. Blur or mask before processing.
On-Premise Deployment
Deploy Replay on your infrastructure for complete data isolation.
Security Controls
Audit logging, access controls, and security practices aligned with SOC 2 framework.
Frequently Asked Questions
Rewrites fail. Yours doesn't have to.
Manual modernization runs over budget, slips for quarters, or gets paused indefinitely.