rrweb
rrweb operates the most widely used open-source session replay library on the web (19,800+ GitHub stars), capturing browser DOM and user interactions for replay. It monetizes through rrweb Cloud managed infrastructure, rrweb AI session analysis, and enterprise Platform Licenses, serving observability, analytics, AI agent, and bug-reporting platforms.
- Company typePrivate
- Founded2021
- HeadquartersAmsterdam, Netherlands
- Headcount1–10
- GTM typeB2B
- OfferingSoftware
What rrweb does
rrweb is a privately held Dutch company that maintains the most widely used open-source session replay library on the web, capturing browser DOM snapshots and user interactions (mouse movement, clicks, scrolling, inputs, custom events) as structured event streams for deterministic replay. The MIT-licensed core library powers recording through lightweight DOM capture (full and incremental snapshots, MutationObserver integration, shadow DOM and cross-origin iframe handling) and replay through a browser-independent virtual DOM (rrdom). Native modules include @rrweb/packer for client-side deflate compression, canvas recording in both snapshot-based and command-based modes, and configurable privacy controls (text masking, input blocking, element exclusion). The technology is battle-tested in production at major observability and analytics platforms including Datadog, Sentry, New Relic, PostHog, Mixpanel, Amplitude, and Pendo.
The company operates a three-tier commercial model. rrweb Cloud (launched March 2026, currently in ALPHA) is the managed infrastructure layer providing hosted ingestion across a global edge network, storage, indexing, deduplication, PII filtering, replay serving, and a 99.9% uptime SLA, with ~80% lower bandwidth than typical uncompressed recordings (~200KB vs ~1,000KB for a 5-minute session). rrweb AI extends Cloud with token-efficient session summaries, tokenized event streams, automatic issue generation, and frustration signal detection for AI agent consumption. The Platform License offers the full rrweb stack for enterprise self-hosted deployment under source-available terms with enterprise support and SLA. Pricing is freemium (5,000 sessions/month free), usage-based above the free tier (with a $54 non-refundable Usage Credit), and enterprise via annual Order Form contracts. Go-to-market combines product-led growth (self-serve Cloud with unbranded SDK and API for embedding), community-led growth (Cloud revenue funds open-source development, with maintainer access for paying customers), and enterprise field sales for Platform License deals routed through a contact form to engineering.
rrweb generates revenue primarily through rrweb Cloud managed services and Platform License contracts, while maintaining the open-source library free under MIT license and drawing sponsorship revenue from Gold Sponsors (Sentry, PostHog, Pendo, Highlight). Customer segments are horizontal and developer-centric: observability and monitoring platforms, experience analytics platforms, AI agent and browser automation developers, bug reporting and customer support products, and demo/onboarding platforms. The company is incorporated as a private limited liability company under Dutch law with its registered office in Amsterdam, is GDPR- and CCPA-compliant with EU-default hosting, and is led by founder Justin Halsall, who returned to focus on rrweb full-time in March 2026.
rrweb firmographics
Firmographics- Name
- rrweb
- Legal name
- rrweb
- Website
- https://rrweb.com
- Company type
- Private
- Founded year
- 2021
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- rrweb operates the most widely used open-source session replay library on the web (19,800+ GitHub stars), capturing browser DOM and user interactions for replay. It monetizes through rrweb Cloud managed infrastructure, rrweb AI session analysis, and enterprise Platform Licenses, serving observability, analytics, AI agent, and bug-reporting platforms.
- Ownership category
- akta.pro rank
rrweb industry classification
Industry- Product category
- Session Replay Software
- NAICS
- Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518210)
- SIC
- Services-Prepackaged Software (7372)
- akta.pro primary industry
- Remote Review, Approval & Dailies (screening, annotations, version compare) (MPAHANAB)
- akta.pro secondary industries
- Hybrid Cloud Storage & Backup Infrastructure (HDABAMAG), Data Security & Privacy for Cloud (DLP, DSPM, Tokenization) (HDABAHAK)
Keywords
Where rrweb is headquartered
LocationHeadquarters
- HQ city
- Amsterdam
- HQ country
- Netherlands
- HQ region
- Europe
Offices1 record
Markets served
rrweb business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Infrastructure, Personnel, Marketing or Sales, Operations
Revenue model
- Cloud Subscription (Usage-based): Primary billing metric is number of Recorded Sessions ingested per month. Free tier includes 5,000 sessions/month. Paid usage debited at per-session rate when free allowance exceeded. Usage Credit of $54 (or EUR equivalent) held as non-refundable credit applied against subsequent usage. Storage, API calls, compute, and bandwidth included within fair use thresholds.
- Platform License: Enterprise customers can license the full rrweb stack (storage engine, deduplication, indexing, serving layer) for deployment on their own cloud infrastructure. Includes enterprise support and SLA. Source-available with licensing designed to protect customer investment.
- Managed Cloud Services: Fully managed rrweb Cloud service handling storage, indexing, deduplication, query, and replay. Operated by the team that maintains the open-source library. Revenue funds ongoing open-source development.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Monthly | Free Tier - 5,000 sessions/month |
| Usage-based | Pay-as-you-go | Usage-based Cloud - Pay as you grow |
| Subscription | Multi-year contract | Order Form - Annual/Committed |
| Subscription | Multi-year contract | Platform License - Enterprise self-hosted |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels5 records
rrweb product offering
Product offeringCore offering
rrweb provides an open-source session replay library (MIT-licensed) that captures browser DOM snapshots, mutations, and user interactions as structured event streams for deterministic replay. Around the library, the company sells rrweb Cloud — a managed ingestion, storage, indexing, deduplication, and replay platform with global edge deployment — and an enterprise Platform License for self-hosted deployment on private cloud infrastructure.
Product overview
rrweb is an open-source session replay technology company offering a three-tier deployment model: (1) the MIT-licensed open-source rrweb library for recording browser DOM snapshots and user interactions as structured event streams, (2) rrweb Cloud (ALPHA) as managed infrastructure handling ingestion, storage, indexing, deduplication, and replay with global edge deployment and AI-ready session exports, and (3) rrweb AI for automated session summarization, frustration signal detection, and issue generation. The Cloud platform includes REST APIs for embedding replay in customer products. All tiers share the same open-source packages (record, replay, player, plugins) with Cloud providing the managed operational layer.
Differentiator
Problem solved
Functional benefit
Brands
- rrweb Cloud: Managed session replay infrastructure - hosted ingestion, storage, replay, and AI capabilities
- rrweb AI
Products and services
- rrweb Open Source Library MIT-licensed open-source session replay library that captures browser DOM snapshots, mutations, and user interactions (mouse movement, clicks, scrolling, inputs, console, network, custom events) as a structured event stream and supports deterministic replay. For developers building products that need session replay as a capability.
- rrweb Cloud Fully managed session replay infrastructure providing hosted ingestion (via global edge network), storage, indexing, deduplication, query, replay serving, and PII filtering with 99.9% uptime SLA. Free tier of 5,000 sessions/month, usage-based billing thereafter, REST API, unbranded SDK and player for embedding. For developers and teams that want to add session replay without operating infrastructure.
- rrweb AI AI-powered analysis layer on top of rrweb Cloud that generates token-efficient session summaries (~500 bytes / hundreds of tokens), tokenized events (~8KB), and automatic issue generation with frustration signal detection (rage clicks, dead clicks, repeated retries, silent failures). For AI agent developers, product teams, and engineering teams consuming session data with LLMs.
- Platform License Enterprise licensing of the full rrweb stack (storage engine, deduplication, indexing, serving layer) for deployment on the customer's own cloud infrastructure. Source-available with enterprise support and SLA. For organizations with data residency, compliance, or custom deployment requirements.
Quantifiable outcome
- ~80% lower bandwidth/egress cost compared to typical uncompressed recordings (200KB vs 1,000KB for 5-minute session)
- +1 more outcomes
Companies that use rrweb
Customer profileNamed customers13 records
Segments6 records
Ideal customer profiles5 records
rrweb technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration14 records
AI capability5 records
Feature11 records
rrweb partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core.
- SentrycoreSentry uses rrweb integration to attach session replay behind errors in their observability platform. Sentry is a Gold Sponsor of the rrweb project, indicating strong alignment between error tracking and session replay capabilities.
- PostHogcorePostHog uses rrweb plugin for session replay functionality in their product analytics platform. PostHog is a Gold Sponsor and their team includes rrweb maintainers.
- PendocorePendo uses rrweb for session replay functionality as part of their product discovery platform. Gold Sponsor of rrweb.
- HighlightcoreHighlight uses rrweb for session replay in their observability platform. Gold Sponsor and has built rrweb into their product.
- DatadogcoreDatadog uses rrweb in their browser SDK for session replay functionality in their RUM (Real User Monitoring) product, one of the largest observability platforms.
- New ReliccoreNew Relic uses rrweb source in their browser agent for session replay capabilities, integrated into their comprehensive observability platform.
- MixpanelcoreMixpanel has forked rrweb and uses it for session replay in their product analytics platform.
- AmplitudecoreAmplitude has forked rrweb and uses it for session replay in their digital analytics platform.
Scale indicators5 records
Recent moves6 records
Expansion highlights6 records
rrweb competitors and assessment
Company assessmentDirect peers
- Microsoft Clarity: Free session replay and heatmap tool from Microsoft with unlimited sessions. Targets the same SMB/individual developer segment as rrweb's free tier and represents a freemium threat to rrweb Cloud's self-serve funnel.
- LogRocket: Session replay and product analytics platform for frontend applications. Closest direct competitor to rrweb Cloud, offering a managed session replay service plus integrations with error tracking and analytics — rrweb is a direct alternative for developers building similar stacks.
- Smartlook: Session replay and analytics for web and mobile apps with qualitative and quantitative tools. Direct competitor targeting similar product/UX teams that rrweb serves through its Cloud product.
- Hotjar: Session recording, heatmap, and user-feedback tool commonly used by product and UX teams. Overlaps with rrweb's observability and experience-analytics use cases, especially for SMB customers.
- FullStory: Enterprise digital experience analytics platform with proprietary session replay, heatmaps, and funnel analysis. Competes head-to-head with rrweb Cloud for mid-market and enterprise observability/analytics buyers.
- Quantum Metric: Enterprise continuous product design platform with session replay and digital analytics. Competes with rrweb Platform License for large regulated enterprises needing self-hosted or hybrid deployment.
Broad incumbents
- Datadog: Large observability platform that integrates rrweb's library for its RUM session replay feature. A customer of rrweb OSS but also a broad incumbent whose own session-replay roadmap could compete with rrweb Cloud.
- Sentry: Error tracking and application monitoring platform with native session replay built on rrweb. Gold Sponsor of rrweb; uses rrweb as an embedded capability inside its broader observability product, making it both partner and partial competitor.
- Mixpanel: Product analytics platform that maintains a fork of rrweb for session replay. Uses rrweb-derived code inside its broader analytics suite, partially overlapping with rrweb Cloud's experience-analytics value proposition.
Emerging players
- PostHog: All-in-one product analytics platform with session replay powered by a fork/integration of rrweb. Gold Sponsor whose team includes rrweb maintainers; represents a 'build on rrweb' positioning that overlaps with rrweb's own analytics use case.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
rrweb social profiles
Digital presencerrweb compliance and trust
Trust signalCompliance3 records
rrweb financial estimates
Financial estimateRevenue estimate
Valuation estimate
rrweb leadership team
Management profileNumber of profiles
Profiles1 record
rrweb funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
rrweb M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about rrweb
What does rrweb do?
rrweb provides an open-source session replay library (MIT-licensed) that captures browser DOM snapshots, mutations, and user interactions as structured event streams for deterministic replay. Around the library, the company sells rrweb Cloud — a managed ingestion, storage, indexing, deduplication, and replay platform with global edge deployment — and an enterprise Platform License for self-hosted deployment on private cloud infrastructure.
Is rrweb a public or private company?
rrweb is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was rrweb founded?
rrweb was founded in 2021. It employs 1 to 10 people.
Where is rrweb based?
rrweb is headquartered in Amsterdam, Netherlands, in the Europe region.
How does rrweb make money?
Three revenue lines are on record. Cloud Subscription (Usage-based) is the primary driver. The others are platform License and managed Cloud Services.
Who are rrweb's main competitors?
Direct peers on record are Microsoft Clarity, LogRocket, Smartlook, Hotjar, FullStory and Quantum Metric. Broad incumbents are Datadog, Sentry and Mixpanel. PostHog is listed as an emerging player.
Does rrweb have an API?
Yes. REST API for session replay infrastructure. Endpoints include: GET /statistics (recording counts, storage), GET/POST /recordings/{recordingId}/events (event stream), GET /recordings/{recordingId}/metadata, POST /recordings/{recordingId}/metadata (capture searchable metadata), GET /recordings/{recordingId}/player (player HTML), GET /recordings/{recordingId}/screenshot (rendered screenshot), GET /replays (compose replay from multiple recordings), GET /replays/{groupingProp} (list replays grouped by metadata), GET /replays/{groupingProp}/{replayValue} (replay with events), GET /replays/{groupingProp}/{replayValue}/events, GET /replays/{groupingProp}/{replayValue}/metadata, WebSocket streaming at /recordings/{recordingId}/events/ws. Supports content encoding (gzip, brotli, zstd), authentication via Bearer token (private API key) or presigned URLs (public exposure). Developer documentation is at rrweb.com/docs.
What industry is rrweb in?
rrweb's product category is Session Replay Software. Its primary akta.pro industry code is MPAHANAB, Remote Review, Approval & Dailies (screening, annotations, version compare), with a secondary code of HDABAMAG, Hybrid Cloud Storage & Backup Infrastructure. Its NAICS code is 518210 and its SIC code is 7372.