Sentry
FreemiumStop guessing. Start resolving.
Published 29 May 2026 · Last updated 27 September 2026
Scores
Popularity3/5
Widely used across the industry for error monitoring; significant open-source community.
Learning Curve2/5
SDK installation is minimal; meaningful error grouping and alert tuning take more time.
Flexibility4/5
Issue grouping, alert rules, release tracking, and integrations are highly configurable.
Performance3/5
SDK overhead is asynchronous but measurable; error capture adds to bundle size.
Portability3/5
Sentry SDK creates some coupling; error concepts and grouping logic transfer partially.
About Sentry
Sentry is a developer-focused application monitoring platform best known for error tracking. Its SDKs, available for 100+ languages and frameworks, capture exceptions with the stack trace, breadcrumbs of what happened before the crash, the release, and the affected user, then group repeat occurrences into a single issue and alert the team that owns the code.
The same SDKs feed tracing and performance monitoring, session replay that reconstructs what a user saw before an error, profiling, logs, cron and uptime monitoring, and release health with crash-free session rates. Seer, Sentry's AI agent, analyzes issues to suggest a root cause and a fix. Integrations with GitHub, GitLab, Slack, and Jira link errors to the commits that caused them and the tickets that track them.
Sentry is offered as a hosted service with a free single-user Developer plan and paid plans priced by event volume. The code is published under the Functional Source License, which converts to Apache 2.0 after two years, and a self-hosted version runs on Docker Compose for teams that need to keep data in-house, though it takes real operational effort at scale.
Key Features
- Real-time error tracking and alerting
- Tracing and performance monitoring
- Session replay for debugging
- Release health and deployment tracking
- 100+ SDKs for all major languages
- Seer AI root-cause analysis and fix suggestions
- Logs, cron, and uptime monitoring
- Integrations with GitHub, Slack, Jira, and more
Pros
- Excellent error tracking with rich context
- Strong SDK support across many languages
- Clean, intuitive UI for developers
- Powerful search and filtering capabilities
- Good free tier for small teams
- Source-available and self-hostable (FSL, Apache 2.0 after two years)
Cons
- Can get expensive at scale
- Seer AI debugging is billed on top of the plan
- Learning curve for advanced features
- Some features require higher tiers
- Alert configuration can be complex
Sentry Pricing
Freemium- · One user
- · 5,000 errors, 5M spans, 50 replays, and 5 GB of logs a month
- · 30-day lookback
- · Unlimited users
- · 50,000 errors, 5M spans, 50 replays, and 5 GB of logs included
- · Up to 90-day lookback
- · Per month with annual billing; extra volume pre-paid or pay-as-you-go
- · Everything in Team, with advanced features
- · Same included volume as Team
- · Up to 90-day lookback with sampled retention
- · Per month with annual billing
- · Custom volume
- · SSO/SAML
- · Unlimited retention
- · Dedicated support
Tech Stacks with Sentry
MERN Stack
ProjectMongoDB, Express, React, Node.js: the classic JavaScript full-stack. A well-trodden path with massive community support and job-market demand.
Frontend
Programming
Databases
Hosting
Authentication
Supabase + Next.js
ProjectThe fastest way to launch a modern web app. Next.js handles the frontend and API routes; Supabase provides Postgres, auth, realtime, and storage out of the box.
Python Web (FastAPI + React)
ProjectA clean separation of concerns: React on the frontend, FastAPI serving a typed REST API, and PostgreSQL for persistent storage (MySQL, MariaDB, and serverless Postgres hosts are also available). Docker keeps environments consistent.
Tools Related to Sentry
Integrates with Sentry(5)
Sentry integrates with GitLab for issue tracking and release tracking — GitLab commit data appears in Sentry issues, and Sentry can auto-create GitLab issues from error alerts.
Sentry integrates with GitHub for issue tracking and release tracking — GitHub commit data appears in Sentry issues, and Sentry can auto-create GitHub issues from error alerts.
Sentry's official GitLab integration connects CI pipeline events to error monitoring — releases created during GitLab CI jobs appear in Sentry with associated commits and source maps.
Sentry's official GitHub Action (getsentry/action-release) enables release tracking and source map uploads as CI steps, connecting deployment events in GitHub Actions to error monitoring in Sentry.
PostHog integrates with Sentry so that session replay recordings are linked directly inside Sentry error reports — engineers can jump from a Sentry exception to the exact PostHog session replay where the error occurred.
Alternatives to Sentry(2)
Grafana visualizes metrics/logs from any source; Sentry specializes in error tracking — different observability focus areas, often used together.
Sentry specializes in error tracking and frontend performance monitoring; Datadog covers infrastructure, APM, and logs — different primary focus.
Vendor
Sentry
Website →Tags
Details
- Maintained
- Yes
- Monitoring
- Error tracking, APM, Metrics, Logging
- Hosting
- Cloud & Self-hosted
- Open source
- Yes
- Alerting
- Yes
- GitHub stars
- 44.8k
- Stars updated
- 2026-09-23