Grafana vs Highlight.io for Solo Developers

Status Update for 2026

Read this part before anything else. LaunchDarkly acquired Highlight on April 23, 2025, and the standalone Highlight.io service was deprecated on February 28, 2026. If you were running a Highlight SDK snippet, it had to be migrated to LaunchDarkly Observability before March 1, 2026 to keep collecting data. Highlight as its own hosted product is no longer a thing you can sign up for as a long-term home. The open-source code lives on, and the work itself continues inside LaunchDarkly Observability, but the comparison below now reads as Grafana versus "Highlight, as folded into LaunchDarkly." I have kept the original advice intact because the reasoning still holds, and I have added the current reality everywhere it changes the recommendation.

Quick Comparison

Grafana Overview

Grafana is the industry standard for data visualization and dashboarding. It does not collect data itself. Instead, it connects to data sources like Prometheus (metrics), Loki (logs), Jaeger (traces), and dozens of others, then lets you build beautiful, customizable dashboards to visualize that data. If you have ever seen those impressive server monitoring dashboards with real-time graphs, there is a good chance they were built with Grafana.

For solo developers, Grafana is powerful but demanding. You need to set up the data collection layer yourself. That means running Prometheus to scrape metrics, Loki to aggregate logs, and configuring exporters for your specific services. The payoff is complete control. You can monitor anything: server CPU, memory, disk usage, application-specific metrics, database performance, even business KPIs.

I run Grafana on my own K3s cluster, and the dashboards are genuinely useful once configured. But I will not sugarcoat it: the initial setup took hours, not minutes. Grafana Cloud offers a free tier that removes some of that burden, giving you hosted Prometheus, Loki, and Tempo with 10,000 metrics series, 50 GB of logs, and 50 GB of traces per month. That is enough for most solo projects.

Highlight.io Overview

Highlight.io is an open-source, full-stack monitoring platform that bundles error tracking, session replay, log management, and traces into one product. Think of it as Sentry plus LogRocket plus a log viewer, all in one place. You install the SDK, and it starts capturing frontend errors, backend errors, user sessions, and application logs automatically.

The setup experience is dramatically simpler than Grafana. Install the npm package, add a few lines of initialization code, and you are collecting data within minutes. The session replay shows you exactly what users experienced when an error occurred. The error tracking groups exceptions and links them to the replay. The log viewer searches your backend logs with filtering and correlation.

For solo developers, Highlight.io is appealing because it reduces the number of tools you need. Instead of stitching together Sentry for errors, LogRocket for sessions, and Grafana for logs, you get one dashboard that ties everything together. Being open source also means you can self-host if you prefer.

Here is the part that changed since I first wrote this. LaunchDarkly bought Highlight on April 23, 2025, and the hosted Highlight.io service went dark on February 28, 2026. The same team and the same capabilities now ship as LaunchDarkly Observability, which the npm package tells on itself about. The highlight.run browser SDK is still alive at version 10.3.1 and still pulling roughly 85,000 weekly downloads, but it now publishes out of the launchdarkly/observability-sdk repository and depends on the LaunchDarkly client SDK. So when I say Highlight below, read it as the product that now lives inside LaunchDarkly. The free tier is more generous than the old one: the LaunchDarkly Developer plan covers 5,000 session replays, 5,000 errors, 10 million logs, and 10 million traces per month with unlimited seats. The catch is that you are now adopting a feature-flag platform, not a small standalone monitoring tool.

When to Pick Grafana

Grafana is the right choice when you need deep infrastructure monitoring with full customization, and you are willing to invest time in setup.

Pick Grafana if:

• You manage your own servers or Kubernetes clusters
• You need highly customizable dashboards
• You already use Prometheus, Loki, or other CNCF tools
• You want to monitor infrastructure-level metrics (CPU, memory, disk, network)
• You need long-term metric retention and alerting
• You enjoy building and tweaking dashboards

Grafana is also the better choice if your monitoring needs extend beyond web applications. If you are running databases, message queues, background workers, or any complex infrastructure, Grafana's ecosystem has exporters for virtually everything.

When to Pick Highlight.io

Highlight.io is the right choice when you want comprehensive application monitoring without spending days on setup.

Pick Highlight.io if:

• You are building a web application and want errors, sessions, and logs in one place
• You value fast setup over deep customization
• You want session replay to debug user-reported issues
• You prefer a single tool over stitching together multiple services
• You are an early-stage project that needs monitoring now, not next week
• You like open source and want the option to self-host later

By the Numbers (2026)

Here is the verified state of both tools as of May 28, 2026.

Grafana

• Latest release is Grafana v13.0.1, published April 17, 2026, with a security patch v13.0.1+security-01 on May 12, 2026.
• The repository carries 74,000+ GitHub stars and is licensed AGPL-3.0. The codebase is primarily TypeScript and Go.
• Grafana Cloud Free includes 10,000 active metrics series, 50 GB each of logs, traces, and profiles, all at 14-day retention, plus 3 active visualization users, 50,000 frontend sessions per month, and 500 k6 virtual user hours.
• Grafana Cloud Pro starts at $19 per month plus usage. Metered rates include $6.50 per 1,000 series for metrics and $0.50 per GB ingested for logs, traces, and profiles. Grafana visualization seats are $8 per active user.

Highlight, now LaunchDarkly Observability

• The standalone Highlight.io service was deprecated on February 28, 2026 following LaunchDarkly's April 23, 2025 acquisition. SDK snippets had to move to LaunchDarkly Observability before March 1, 2026.
• The open-source highlight/highlight repository still sits at 9,300+ stars. The browser SDK highlight.run is at version 10.3.1, Apache-2.0 licensed, and recorded 85,487 downloads in the week ending May 27, 2026 per the npm registry. The Node SDK @highlight-run/node recorded 9,577 in the same week.
• The successor free tier is LaunchDarkly's Developer plan at $0 with no card required: 5,000 session replays, 5,000 errors, 10 million logs, and 10 million traces per month, with unlimited seats and unlimited feature flags.
• Paid usage starts on the Foundation plan at $10 per month per service connection. Observability overages start at $3.50 per 1,000 session replays, $0.30 per 1,000 errors, and $1.50 per 1 million logs or traces.

Real Cost at Solo-Dev Scale

Pricing comparisons get hand-wavy fast, so here is a concrete workload and the real arithmetic. Assume a solo dev running one small web app and one small backend service: about 20,000 user sessions a month, roughly 8,000 application errors a month while the product is still rough, around 30 million log lines, and a handful of dashboards for server metrics. These are assumptions, not measurements, so substitute your own numbers and the same rates.

On Grafana Cloud. Metrics are the trap. A single Prometheus node exporter plus a small Kubernetes setup blows past 10,000 active series quickly, so plan to land on Pro at the $19 per month floor. Logs are the other lever: 30 million log lines is easily 30 GB or more, and the free tier only covers 50 GB before Pro's $0.50 per GB kicks in. For this workload you are realistically at the $19 minimum, with log overage only mattering once you cross 50 GB. The bigger cost is your time, since Grafana does not capture sessions or errors at all. You would still need a separate error and session tool on top.

On LaunchDarkly Observability. The Developer free tier covers 5,000 sessions, 5,000 errors, and 10 million logs. This workload of 20,000 sessions, 8,000 errors, and 30 million logs exceeds all three, so you move to the Foundation plan. You pay the $10 per month per service connection floor, then roughly 15,000 sessions over the free allowance at $3.50 per 1,000, which is about $52.50, plus roughly 3,000 errors over the allowance at $0.30 per 1,000, which is about $0.90, plus roughly 20 million logs over the allowance at $1.50 per 1 million, which is about $30. That lands near $93 a month for full session replay, error tracking, and logging in one place.

The honest read: Grafana is cheaper in raw dollars for this workload because it is doing less. It draws graphs from metrics you collect yourself. LaunchDarkly Observability costs more because session replay video is genuinely expensive to store and serve, and you are buying error grouping and replay that Grafana never offered. If your real need is "what is breaking in my app and what did the user see," the LaunchDarkly spend buys something Grafana cannot. If your need is "how is my server doing," Grafana at $19 wins and replay is irrelevant.

The Verdict

This comes down to what you are monitoring and how much setup time you are willing to spend. Grafana gives you the most powerful, flexible monitoring stack available, but you pay for it with complexity. Highlight.io gives you practical, full-stack application monitoring that works out of the box.

For a solo developer shipping a web application, I would start with Highlight.io. You get error tracking, session replay, and logging in one tool, set up in under 10 minutes. Save Grafana for when you are managing infrastructure, such as when you move from managed hosting to your own servers or Kubernetes cluster. At that point, Grafana becomes essential.

If you are already running your own infrastructure and comfortable with the Prometheus ecosystem, Grafana is hard to beat. But if you just want to know what is breaking in your app and why, Highlight.io gets you there faster.

One update to that advice for 2026. When I say start with Highlight, you are now signing up for LaunchDarkly Observability, since the standalone Highlight product is gone. That is a fine outcome for most solo web apps. The free Developer plan is more generous than the old Highlight free tier, and the setup story is still minutes, not hours. Just go in with eyes open that you are adopting a larger feature-flag platform rather than a tiny independent tool, and that your monitoring now lives wherever LaunchDarkly takes it. If that coupling bothers you, the open-source Highlight code is still on GitHub and self-hostable, and Sentry plus a logging tool remains a credible standalone alternative. Grafana, meanwhile, has not moved. It is still the same self-hosted or Grafana Cloud option it always was.

Sources

All figures verified on May 28, 2026.

• Grafana Cloud pricing and free-tier limits: https://grafana.com/pricing/
• Grafana repository, stars, license, and language: https://github.com/grafana/grafana
• Grafana v13.0.1 and security releases: https://github.com/grafana/grafana/releases
• Highlight repository and stars: https://github.com/highlight/highlight
• LaunchDarkly acquires Highlight (April 23, 2025): https://launchdarkly.com/blog/welcome-highlight-to-launchdarkly/
• Highlight.io deprecation date and migration instructions: https://highlight.io/blog/launchdarkly-migration
• LaunchDarkly Observability and Session Replay SDKs: https://github.com/launchdarkly/observability-sdk
• LaunchDarkly pricing, Developer free tier, and Foundation rates: https://launchdarkly.com/pricing/
• highlight.run SDK version 10.3.1 and weekly downloads (npm registry): https://registry.npmjs.org/highlight.run