Replay.io Blog
Archive
Every post we have published, newest first. Back to the blog.
2026
- Replay QA tests the app you built with AI
- How to Set Up Replay MCP with Codex in Under 10 Minutes
- How to Set Up Replay MCP with Claude Code in Under 10 Minutes
- Episode 1 of The Greenfield Games: An Autonomous App Builder Beat Two Human Teams
- Replay QA
- Replay Time Travelogue: Improving Nadia’s “Debugging with AI” Results Using Replay MCP
- Replay Time Travelogue: How Replay MCP Helped Find a React Bug Faster than Dan Abramov Did
- Web Debug Bench
- Introducing Replay Precog: Time-Travel Debugging for Code You Haven't Written Yet
- Open Auto Builder
- Communal SaaS apps
- Replace expensive SaaS tools with your own apps
2025
2024
- Autofixing clients after API changes
- Learning to debug
- Changelog 71: AI development with Replay and OpenHands
- Rerecording
- Changelog 70: Autonomous AI Development
- Improving AI developers with data flow analysis
- Changelog 69: Full Stack DevTools
- Root causing bad network requests in failed tests
- Changelog 68: Fixing test failures with AI
- Fixing a browser test failure with AI and time travel
- Changelog 67: Demos
- Full Stack Time Travel Debugging
- Changelog 66: Replayability Roadmap
- A new direction
- Performance limiting paths in React applications
- Replay Changelog 65: Performance Analysis
- Replay Changelog 64 - Chrome for Mac
- A Journey of Driving Down Test Flakes to 0% at Metabase - Part 3
- Changelog 62: Elements Panel V3 🔍
- Changelog 61: React DevTools V3 ⚛️
- A Journey of Driving Down Test Flakes to 0% at Metabase - Part 2
- A Journey of Driving Down Test Flakes to 0% at Metabase - Part 1
2023
- Changelog 60: Full Text Search V2 🚀
- Finding “false positive” tests with Replay.io
- Changelog 59: Elements Panel V2 🔍
- Our Cloud Development Environment Journey
- Changelog 58: Flaky tests ❄️
- Changelog 57: Redux DevTools 🔬
- Debugging a Flaky Test with Replay
- Changelog 56: Processing… 🕤
- Changelog 55: Instant Replay (part 2)
- Changelog 54: 54% faster recording ✨
- Changelog 53: Replay for Test Suites
- Replay for Test Suites
- Changelog 52: React component names ⚛️
- Changelog 51: Instant Replay 🚀
- How to time travel every time
- How to build a Time Machine
- Changelog 49: Instant Replay (Preview)
- Changelog 48: Multiplayer 🎮
- Changelog 47: React Events Timeline 🚀
- Changelog 46: Chrome-palooza 🚀
- How We Rebuilt React DevTools with Replay Routines
2022
- The Definitive Guide for Authenticating a GitHub App
- Changelog 45: Butter Score Report 🧈
- Debugging Github Auth
- Changelog 44: Cypress Panel 🚀
- Changelog 43: Execution Cache FTW
- Midnite builds time travel workflows for its fast-paced betting platform
- Changelog 41: Chromium Network Monitor 📤
- Changelog 40: Thank you ❤️ 🛹
- Announcing BugSlayer 🛹 🚀
- Changelog 39: Chromium and Cypress 🚀
- Changelog 38: Broken Glass 🧹
- TableCheck transforms QA <> Dev communication to support thousands of restaurants and hotel chains
- Replay achieves SOC2 🔒
- Changelog 37: Test Suite Dashboard 🚀
- Changelog 36: Test Suite Comments 👋
- Glide saves 40 hours weekly by eliminating the "reproducibility" problem
- Changelog 35: Case Studies 🚀
- Changelog 34: Heat Maps V1 🔥
- Pantheon solves performance bottlenecks improving load time by 5x
- Changelog 33: Promoting the 🦄
- How We Improved Our Focus Mode
- Changelog 32: Focus Mode V2 🔍
- The Replayability Roadmap
- Changelog 31: Turbo Replay 🚀
- Changelog 30: Redux DevTools V0.5 🚀
- Building a Buggy App
- Changelog 29: 🦄 Console
- Cross Your Fingers and Hope to Crash
- Changelog 28: Enterprise Security 🔒
- Changelog 27: Search 🔍
- Debugging a React useEffect bug
- Changelog 26: Loading 1, 2, 3
- Building the impossible
- Changelog 25: React and Redux DevTools 👋
- Replay welcomes Brian Vaughn, React core maintainer
- Time-Travel Debugging as a Service
- Changelog 24: CoffeeScript ☕
- How to debug an Effectively Deterministic Time Travel Debugger? (Seriously…how?!)
- Changelog 23: Heat Maps 🔥
- CI Improvements — March 2022
- Debugging a Time-Travel Debugger is a lot like playing Wordle!
- Changelog 22: Autocomplete V2 🚀
- Debugging TypeScript using Replay Node
- Replay’s Recording Roadmap
- Changelog 21: Playwright Tests 🎭
- Replay vs Chrome Recorder
- Changelog 20: Dark Mode 🚀
- Contributing to OSS with reproducible bug reports
- Session Replay vs Time-Travel Debugging
- Using Replay to fix my first Replay bug
- How We Designed Our Focus Mode
- Changelog 19: Focus Mode 🚀
- Changelog 18: Source Map Visualization 🔍
- Debugging CSS
- Changelog 17: Eager Evaluation ✨
- Replay welcomes Mark Erikson, maintainer of Redux
- Changelog 16: Autocomplete ✨
- Changelog 15: Bug Report 🐞
- Changelog 14: Elements Panel 🚀
- Changelog 12: Network Monitor V1 🚀
- Changelog 13: Rebased Replay Browser
2021
- Changelog 11: Print Statements 💃
- Changelog 10: Function Search 🔍
- Changelog 9: Network Monitor V0.5
- Changelog 8: On-Demand Paints
- Changelog 7: Full Text Search
- Announcing Windows beta
- Recording Windows Applications
- Our First Year of Design Decisions
- Changelog 4: Collaboration
- Changelog 3: Privacy Panel
- Changelog 6: Windows beta 🎉
- Changelog 2: Windows Early Access
- Changelog 5: UI Refresh
- Changelog 1: Zypsy Blue and Replay Fuschia
- Replay is Live 🎉
- 🚀 Launching today! Your Time Travel Debugger
- Inspecting Runtimes
- Effective Determinism
- Recording and Replaying
- How Replay Works
- Safari, CSS Grid, Tables, and Quirks Mode
- Teams Refresh: A new collaborative debugging experience
- Introduction to time travel debugging
- The How and Why of Our Icon Refresh
- Our Onboarding Audit
- Are We Overdoing User Research?
- Changelog 1: Onboarding, Onboarding, Onboarding