Startup profile for Replay: latest funding, latest known valuation, total disclosed funding, investors, status, sources, and why the company is interesting. Part of the Venture Capital Tracker startup directory.
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Replay funding, valuation and investors

Browser session recorder and debugger for web developers.

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Funding, valuation & investors

Answer-first snapshot

Latest funding

Series A

~$13M · December 2022

Latest known valuation

Not publicly disclosed

Total disclosed equity funding

$5.7M

Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.

Current status

private

series a

Investors in latest funding

Lead: Andreessen Horowitz

Sources: latest funding Last verified: 2026-07-25

Overview

Replay.io builds browser recording and debugging tools that capture reproducible browser sessions for web development teams. Instead of describing bugs in text, developers share visual replays showing exact browser state, network requests, and console output. Founded by Jason Laster and team, Replay raised a $5.7M seed and ~$13M Series A, both led by Andreessen Horowitz, with IA Ventures and Felicis participating. The product targets frontend engineers and QA teams who waste time reproducing intermittent browser bugs. Replay differentiates from Loom (async video) by capturing structured browser state rather than screen recordings, enabling automated analysis and time-travel debugging.

Why Replay is interesting

Replay records reproducible browser sessions so teams attach visual replays to bug reports — a workflow pull from open-source maintainers.

Product & use cases

Replay records reproducible browser sessions with full state capture — DOM, network, console — enabling developers to share visual bug reports and time-travel debug.

  • Sharing reproducible browser bug reports across engineering teams
  • Time-travel debugging of frontend issues
  • QA session recording for regression testing

Key facts

  • Series A (Dec 2022): ~$13M led by a16z
  • Seed: $5.7M also a16z-led
  • Co-investors include IA Ventures and Felicis (not in VCT directory)
  • Reproducible browser session recording for bug reports

Funding history (newest first)

Series A

2022-12 ~$13M

Source: https://a16z.com/announcement/investing-in-replay/

Seed

2021 $5.7M

Source: https://www.gunderson.com/news/replay-series-a

Investors in our directory

Funds linked from Replay's profile — open a fund page for stage focus and related deal articles.

Andreessen Horowitz

Competitive landscape

Edge: Structured browser state capture vs screen recording. Enables automated analysis and exact reproduction that Loom-style video cannot provide.

Session replay splits between production monitoring (LogRocket, FullStory) and development debugging (Replay). Replay targets the dev workflow where reproducing bugs wastes hours. a16z led both seed and Series A, signaling conviction in developer tooling for frontend quality.

  • LogRocket direct

    Session replay for production monitoring; broader product analytics focus.

  • FullStory adjacent

    Digital experience analytics with session replay; enterprise analytics positioning.

  • Chrome DevTools incumbent

    Built-in browser debugging; lacks shareable replay workflow.

Notable stories

  • Founder Jason Laster previously worked on Firefox DevTools, bringing deep browser internals expertise to Replay's session recording approach (a16z announcement).

Industries

Developer Tools Enterprise SaaS

Related funding articles

Venture Capital Tracker pieces that cover Replay's financing or category context.

FAQs about Replay

Practical answers founders, operators, and investors typically search for.

Replay records reproducible browser sessions for web developers to share visual bug reports and time-travel debug.
Andreessen Horowitz led both the $5.7M seed and ~$13M Series A. See /fund/andreessen-horowitz.
LogRocket focuses on production session monitoring and analytics. Replay targets development debugging with structured browser state capture.
~$13M Series A (2022) and $5.7M seed, both a16z-led.
No. Replay captures structured browser state (DOM, network, console) for debugging, not screen video for async communication.
Jason Laster founded Replay.io, drawing on Firefox DevTools experience.
December 2022. ~$13M led by a16z.
Not publicly disclosed.
Stepping backward through recorded browser sessions to inspect state at any point — a core Replay capability.
Frontend engineering and QA teams. Specific customer names not prominently disclosed.
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