Database monitoring tools with a free plan in 2026
Query performance, replication, locks and resource use for PostgreSQL, MySQL, MongoDB and other databases. This list has 9 database monitoring tools. Of these, 8 are open source, 9 have a free plan and 9 can be self-hosted. Checked by hand on 30 September 2026.
- 1
ClusterControl
Severalnines platform to deploy, monitor and manage open source database clusters such as MySQL, PostgreSQL, MongoDB and Redis on your own servers or cloud.
- 2
mysqld_exporter
Official Prometheus exporter for MySQL and MariaDB that exposes server status, InnoDB and replication metrics.
- 3
Percona Monitoring and Management
Open source monitoring for MySQL, PostgreSQL, MongoDB and Valkey: a server and client agents collect metrics and query analytics, with Grafana-based dashboards and alerting.
- 4
pgBadger
PostgreSQL log analyzer that turns server logs into HTML reports on slow queries, errors, locks, checkpoints and connections.
- 5
PgHero
Small web dashboard for Postgres that shows slow queries, index usage, table bloat and connection counts. Runs as a Rails engine or a Docker container.
- 6
pgMonitor
Crunchy Data's bundle of Prometheus exporter queries, alert rules and Grafana dashboards for monitoring PostgreSQL and its hosts.
- 7
pgwatch
PostgreSQL monitoring from Cybertec that gathers metrics with SQL queries and stores them in Postgres or Prometheus for the bundled Grafana dashboards.
- 8
postgres_exporter
Prometheus exporter that exposes PostgreSQL server statistics as metrics for Prometheus to scrape and alert on.
- 9
PoWA
PostgreSQL Workload Analyzer: collects query statistics from pg_stat_statements and related extensions into a history you browse in a web UI, with index suggestions.
Side by side
| Tool | Pricing | Free plan | Open source | Self-hosted | PostgreSQL | MySQL or MariaDB | SQL Server | MongoDB | Query statistics | Explain plans | Index advice | Replication | Locks and waits | Alerting |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ClusterControl | Free plan | Community edition: deploy and monitor clusters | No | Yes | Yes | Yes | Yes | Yes | Yes | - | Yes | Yes | Yes | Yes |
| mysqld_exporter | Free | Yes | Yes | Yes | No | Yes | No | No | Yes | No | - | Yes | Yes | - |
| Percona Monitoring and Management | Free | Yes | Yes | Yes | Yes | Yes | - | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| pgBadger | Free | Yes | Yes | Yes | Yes | No | No | No | Yes | Yes | - | - | Yes | No |
| PgHero | Free | Yes | Yes | Yes | Yes | No | No | No | Yes | Yes | Yes | Yes | Yes | - |
| pgMonitor | Free | Yes | Yes | Yes | Yes | No | No | No | Yes | - | - | Yes | Yes | Yes |
| pgwatch | Free | Yes | Yes | Yes | Yes | No | No | No | Yes | - | Yes | Yes | Yes | Yes |
| postgres_exporter | Free | Yes | Yes | Yes | Yes | No | No | No | Yes | No | - | Yes | Yes | - |
| PoWA | Free | Yes | Yes | Yes | Yes | No | No | No | Yes | Yes | Yes | - | Yes | - |
Yes: confirmed in the tool's documentation. No: documented as not offered. -: not confirmed. Plans and prices change; check each tool's own site before you decide.
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