Sentry vs Grafana for Solo Developers

Comparing Sentry and Grafana for solo developers. Features, pricing, pros and cons, and which one to pick for your next project.

Quick Comparison

Feature	Sentry	Grafana
Type	Error tracking + performance monitoring	Metrics visualization + observability platform
Free Tier	5k errors/mo, 5M spans, 50 session replays, 1 user	Self-host OSS unlimited, or Cloud Free with 10k metric series, 50 GB logs, 50 GB traces, 3 users
Paid Entry	Team at $26/mo annual (50k errors/mo)	Cloud Pro at $19/mo base plus usage
Latest Release	26.5.1 (2026-05-27)	v13.0.1 (2026-05-12)
GitHub Stars	43,992	74,045
Learning Curve	Easy	Moderate to Steep
Best For	Catching and debugging application errors	Visualizing metrics and building monitoring dashboards
Solo Dev Rating	9/10	7/10

Sentry Overview

Sentry does one thing exceptionally: it catches application errors and gives you everything you need to fix them. Stack traces with source maps, breadcrumb trails, user context, browser information, session replays, and release tracking. When your production app breaks, Sentry is the first tool that tells you what happened and why.

Integration is fast. Add the SDK to your app, initialize it with your project DSN, deploy, and errors start appearing in your dashboard. Sentry groups duplicate errors into issues, tracks their frequency, and alerts you through Slack, email, or other integrations. Performance monitoring shows slow transactions, database queries, and frontend vitals.

The free Developer plan provides 5,000 errors per month, 5 million spans, and 50 session replays for a single user, which is more than enough for most solo developer projects. The Team plan at $26 per month on annual billing lifts the included errors to 50,000 per month, opens the seat count, and extends the lookback window. For error tracking specifically, Sentry has no real competitor in terms of depth and developer experience.

Grafana Overview

Grafana is an open-source visualization and observability platform. At its core, Grafana is a dashboard tool that connects to data sources (Prometheus, InfluxDB, PostgreSQL, Loki, Elasticsearch, and dozens more) and creates beautiful, interactive visualizations from your metrics and logs.

The Grafana ecosystem has grown significantly. Grafana itself handles visualization. Prometheus collects metrics. Loki aggregates logs. Tempo traces requests. Mimir provides long-term metric storage. Together, they form the LGTM stack (Loki, Grafana, Tempo, Mimir), which is a complete open-source observability platform.

You can self-host Grafana for free or use Grafana Cloud. The free cloud tier includes 10,000 active metric series, 50 GB logs, 50 GB traces, 50 GB profiles, 500 VUh (virtual user hours) for k6 load testing, and three users. The self-hosted option gives you unlimited everything, but you maintain the infrastructure.

Grafana Cloud's free tier is genuinely useful for solo developers who want monitoring without managing Prometheus and Loki themselves. The managed agents (Grafana Alloy) collect and ship metrics and logs to the cloud with minimal configuration.

Key Differences

Purpose and focus. Sentry is an error tracking product. You install it, and it catches bugs. Grafana is a visualization platform. It shows you data, but you need to supply the data sources, configure the collectors, and build the dashboards. Sentry is ready to use in five minutes. Grafana requires meaningful setup before it shows you anything useful.

Error tracking. Sentry provides stack traces, breadcrumbs, session replay, user context, and release correlation for every error. Grafana does not do error tracking in the Sentry sense. You can log errors and visualize error rates in Grafana, but you do not get stack traces with source maps, session replays, or automatic error grouping. For debugging a specific bug, Sentry is far more useful.

Infrastructure monitoring. Grafana with Prometheus gives you comprehensive infrastructure monitoring: CPU, memory, disk, network, container health, custom application metrics. Sentry does not monitor infrastructure at all. If you need to know your server's memory usage trend over the last week, Grafana shows you a graph. Sentry has no opinion about your server.

Self-hosting economics. Grafana is fully open source. You can run the entire LGTM stack on your own server for free. The trade-off is setup time and maintenance. Getting Prometheus, Loki, Grafana, and Alertmanager configured and running takes hours, possibly a full day. Sentry also has an open-source self-hosted option, but most solo developers use the cloud version because the free tier is sufficient.

Dashboard flexibility. Grafana's dashboarding capabilities are industry-leading. You can visualize any metric from any data source with any chart type. Custom panels, variables, annotations, and alert rules create dashboards tailored to your exact needs. Sentry has pre-built dashboards for errors and performance. You cannot customize them to the same degree.

Learning curve. Sentry: install SDK, deploy, read error reports. Grafana: install Grafana, install Prometheus, configure scraping targets, install exporters for your services, create dashboards with PromQL queries, configure alerting rules. The knowledge required for a productive Grafana setup is significantly higher.

When to Choose Sentry

Application error tracking with deep context is your primary need
You want to start monitoring in under five minutes
Stack traces, session replay, and breadcrumbs matter for your debugging workflow
You prefer a focused tool that does one thing very well
You do not want to manage monitoring infrastructure

When to Choose Grafana

You need infrastructure monitoring with custom metrics and dashboards
You want full control over your monitoring stack with open-source tools
You enjoy building dashboards and have time to configure Prometheus exporters
You need to visualize data from multiple sources in one place
Budget is zero and you are willing to self-host everything

By the Numbers (2026)

These are the figures I confirmed against vendor pricing pages, the GitHub API, and the npm registry on 2026-05-29. Treat anything not listed here as something to check on the live pricing page before you commit.

Sentry

Latest self-hosted release is version 26.5.1, published 2026-05-27. The Python SDK package family ships at 10.55.0.
The GitHub repository has 43,992 stars and 4,709 forks.
The JavaScript SDKs see heavy real-world use. In the week of 2026-05-22 to 2026-05-28, @sentry/node had 22,374,369 weekly downloads, @sentry/browser had 21,873,309, and @sentry/react had 16,111,327.
Free Developer plan includes 5,000 errors per month, 5 million spans, 50 session replays, and one user.
Team plan is $26 per month on annual billing and includes 50,000 errors per month, 5 million spans, and 50 session replays with unlimited users.
Business plan is $80 per month on annual billing.
Error overage runs at roughly $0.00025 per additional error event once you pass your included quota.

Grafana

Latest release is v13.0.1, published 2026-05-12.
The GitHub repository has 74,045 stars and 13,969 forks, which is the larger community of the two.
The plugin and panel SDK package @grafana/data had 91,028 weekly downloads in the week of 2026-05-22 to 2026-05-28. This is a developer-facing package rather than an app SDK, so the volume is far lower than Sentry's client SDKs and is not a like-for-like comparison.
Grafana Cloud Free includes 10,000 active metric series, 50 GB logs, 50 GB traces, 50 GB profiles, 500 k6 virtual user hours, and three users.
Grafana Cloud Pro is a $19 per month base fee plus usage. Metrics bill at $6.50 per 1,000 active series above the free allowance. Logs and traces bill in three parts, roughly $0.40 per GB to write, $0.05 per GB to process, and $0.10 per GB to retain.
Self-hosting the open-source stack is genuinely free of license cost. You pay in server resources and your own time.

Real Cost at Solo-Dev Scale

The two tools price on different units, so there is no single apples-to-apples number. What you can do is price a realistic solo-dev workload against each tool's published rates and see where the free tiers actually carry you.

Take a small production app that throws 30,000 errors a month, ships about 8,000 active metric series from one server, and writes 20 GB of logs a month.

Sentry side (error tracking): 30,000 errors a month sits well inside the 5,000 free monthly allowance only if you stay under it, and this workload does not. The free Developer plan covers 5,000 errors, so the spillover of 25,000 errors is the question. The cheapest covered path is the Team plan at $26 per month annual, whose 50,000 included errors swallow the full 30,000 with headroom. If you tried to stay on free and pay overage, the per-event rate of about $0.00025 on 25,000 extra events would be roughly $6.25, but the Developer plan is not designed to bill overage the way the paid plans do, so the honest answer for this volume is the $26 per month Team plan.

Grafana side (metrics plus logs): 8,000 active metric series is under the 10,000 free series, and 20 GB of logs is under the 50 GB free logs allowance. On Grafana Cloud Free, this entire workload costs $0 per month. You would only start paying once you cross 10,000 series or 50 GB of logs, at which point metrics add $6.50 per 1,000 series and logs add roughly $0.55 per GB blended across write, process, and retain.

The takeaway. At this scale the realistic monthly bill is about $26 for Sentry on the Team plan and $0 for Grafana on the Cloud Free tier, because error volume crosses Sentry's small free allowance quickly while metric and log volume stays inside Grafana's much larger free envelope. That gap is not a verdict on quality. It reflects that errors are expensive to store with full context and that Grafana's free tier is unusually generous. Self-hosting Sentry's open-source build removes its cloud cost too, but then you are back to maintaining infrastructure, which is the exact trade Grafana self-hosting asks of you.

The Verdict

For solo developers who need to catch and fix bugs, Sentry is the obvious choice. You install it in five minutes, it catches every error, and the reports give you exactly what you need to fix them. No configuration, no dashboards to build, no query languages to learn.

Grafana is the right choice if you manage your own infrastructure and want visibility into server health, application metrics, and log data. But be honest about the time investment. Setting up a Grafana stack properly takes hours, and maintaining it is ongoing work. For a solo developer, that time might be better spent on product.

My setup: I use both. Sentry catches application errors on the free tier. Grafana with Prometheus monitors server infrastructure. But I set up Grafana once during initial server configuration and rarely touch it. Sentry I interact with daily. If you are choosing one starting point, start with Sentry. You can always add Grafana later when you have infrastructure worth monitoring.