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Highlight.io

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Open source session replay, error monitoring, logging, and tracing platform

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  • Deployment Cloud Based, On Premises, Hybrid
  • Starting price Free
  • Free trial Not offered
  • Best for Freelancers, Startups, SMEs

What is Highlight.io?

Highlight.io is an open source, full-stack monitoring platform that pairs DOM-based session replay with error monitoring, log management, and distributed tracing. It captures console logs, network requests, and errors alongside pixel-accurate session recordings, including canvas, iframe, shadow DOM, and web component support, so engineers can see exactly what a user did before an error occurred. AI-based error grouping reduces duplicate noise across frontend and backend exceptions.

Because backend logs, traces, and frontend sessions live in one product, teams can jump from a specific error straight to the session or log line that caused it. Highlight.io is available as a hosted cloud service or as a self-hosted open source deployment, making it a fit for startups wanting a free tier as well as larger teams wanting on-premises control.

Key Features of Highlight.io

Highlight.io lists 8 documented features, including DOM-based high-fidelity session replay, Embedded error monitoring linked to session replay and AI-based error grouping and sourcemap support. The list below covers what the product does rather than how it is marketed.

  • DOM-based high-fidelity session replay
  • Embedded error monitoring linked to session replay
  • AI-based error grouping and sourcemap support
  • Log management correlated with sessions and errors
  • Distributed tracing across frontend and backend
  • Canvas, iframe, shadow DOM, and web component recording
  • Real-time session following
  • Open source and self-hostable

Highlight.io Pricing

Highlight.io lists 3 plans, starting free and running to $800.

Free

Free

per month

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Free forever with 500 monthly sessions, AI error grouping and up to 15 seats.

Pay-as-you-go

$50

per month, starting price

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Base fee of $50.00 a month plus session, error, logging and tracing usage, with up to 3 dashboards, 2 projects, 15 seats and 7 day retention.

Business

$800

per month, starting price

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Unlimited dashboards, projects and seats with custom retention; fully custom plans are quoted.

Highlight.io Specifications

Highlight.io is available on web app. It offers an API and has a free plan.

Deployment
  • Cloud Based
  • On Premises
  • Hybrid
Billing cycle
Monthly
Desktop
  • Web App
Languages
  • English
Built for
  • Freelancers
  • Startups
  • SMEs
  • Enterprises
Support
  • Email
  • Tickets
Integrations
Slack, GitHub, Linear, Vercel, Next.js, React, Node.js
Public API
Yes
Free trial
No
Free plan
Yes
Runs in browser
Yes
Customisable
Yes
Website
highlight.io

Highlight.io Videos

Highlight.io Screenshots

Highlight.io screenshot 1

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Highlight.io FAQs

Yes, Highlight.io is an open source, full-stack monitoring platform that can be self-hosted for free, in addition to its paid hosted cloud service.

The free plan includes 500 monthly sessions, AI error grouping, and up to 15 seats.

Yes, it pairs session replay, error monitoring, and logging so frontend issues can be tied directly to backend logs and traces.

Paid plans include a pre-defined usage quota, and additional usage-based fees apply for sessions, errors, logging, and traces beyond that quota.

The Enterprise plan adds SAML/SSO, role-based access control, audit logs, and custom MSAs/SLAs.