* [pg\_probackup](https://github.com/postgrespro/pg_probackup) – A fork of pg\_arman, improved by @PostgresPro, supports incremental backups, backups from replica, multithreaded backup and restore, and anonymous backup without archive command.
* [check\_pgactivity](https://github.com/OPMDG/check_pgactivity) - check\_pgactivity is designed to monitor PostgreSQL clusters from Nagios. It offers many options to measure and monitor useful performance metrics.
* [Check\_postgres](https://github.com/bucardo/check_postgres) - Nagios check\_postgres plugin for checking status of PostgreSQL databases.
* [libzbxpgsql](https://github.com/cavaliercoder/libzbxpgsql) - Comprehensive PostgreSQL monitoring module for Zabbix.
* [Pome](https://github.com/rach/pome) - Pome stands for PostgreSQL Metrics. Pome is a PostgreSQL Metrics Dashboard to keep track of the health of your database.
* [pg\_view](https://github.com/zalando/pg_view) - Open-source command-line tool that shows global system stats, per-partition information, memory stats and other information.
* [pglogical](https://github.com/2ndQuadrant/pglogical) - Extension that provides logical streaming replication.
* [pg\_partman](https://github.com/keithf4/pg_partman) - Partition management extension for PostgreSQL.
* [pg\_paxos](https://github.com/citusdata/pg_paxos/) - Basic implementation of Paxos and Paxos-based table replication for a cluster of PostgreSQL nodes.
* [pg\_shard](https://github.com/citusdata/pg_shard) - Extension to scale out real-time reads and writes.
* [PGStrom](https://wiki.postgresql.org/wiki/PGStrom) - Extension to offload CPU intensive workloads to GPU.
* [PG\_Themis](https://github.com/cossacklabs/pg_themis) - Postgres binding as extension for crypto library Themis, providing various security services on PgSQL's side.
* [PoWA](http://dalibo.github.io/powa/) - PostgreSQL Workload Analyzer gathers performance stats and provides real-time charts and graphs to help monitor and tune your PostgreSQL servers.
* [apgdiff](https://www.apgdiff.com/) - Compares two database dump files and creates output with DDL statements that can be used to update old database schema to new one.
* [pgbadger](https://github.com/dalibo/pgbadger) - Fast PostgreSQL Log Analyzer.
* [PgBouncer](http://pgbouncer.github.io) - Lightweight connection pooler for PostgreSQL.
* [pgCenter](https://github.com/lesovsky/pgcenter) - Provides convenient interface to various statistics, management task, reloading services, viewing log files and canceling or terminating database backends.
* [pgclimb](https://github.com/lukasmartinelli/pgclimb) - Export data from PostgreSQL into different data formats.
* [pgfutter](https://github.com/lukasmartinelli/pgfutter) - Import CSV and JSON into PostgreSQL the easy way.
* [PGInsight](http://pginsight.io/) - CLI tool to easily dig deep inside your PostgreSQL database.
* [pgloader](https://github.com/dimitri/pgloader) - Loads data into PostgreSQL using the COPY streaming protocol, and does so with separate threads for reading and writing data.
* [pgpool-II](http://www.pgpool.net/mediawiki/index.php/Main_Page) - Middleware that provides connection pooling, replication, load balancing and limiting exceeding connections.
* [pgsync](https://github.com/ankane/pgsync) - Tool to sync PostgreSQL data to your local machine.
* [PGXN client](https://github.com/dvarrazzo/pgxnclient) - Command line tool to interact with the PostgreSQL Extension Network
* [postgresql-metrics](https://github.com/spotify/postgresql-metrics) - Tool that extracts and provides metrics for your PostgreSQL database.
* [PostgREST](https://github.com/begriffs/postgrest) - Serves a fully RESTful API from any existing PostgreSQL database.
* [yoke](https://github.com/nanopack/yoke) - PostgreSQL high-availability cluster with auto-failover and automated cluster recovery.
* [Backup and recover a PostgreSQL DB using wal-e](https://coderwall.com/p/cwe2_a/backup-and-recover-a-postgres-db-using-wal-e) - Tutorial about setting up continuous archiving in PostgreSQL using wal-e.
* [PG Casts](https://www.pgcasts.com) - Free weekly PostgreSQL screencasts by Hashrocket.
* [Postgres Guide](http://postgresguide.com/) - Guide designed as an aid for beginners and experienced users to find specific tips and explore tools available within PostgreSQL.
* [PostgreSQL Exercises](https://pgexercises.com/) - Site to make it easy to learn PostgreSQL by doing exercises.
* [tutorialspoint PostgreSQL tutorial](http://www.tutorialspoint.com/postgresql/) - Very extensive collection of tutorials on PostgreSQL
* [What PostgreSQL has over other open source SQL databases: Part I](https://www.compose.com/articles/what-postgresql-has-over-other-open-source-sql-databases/)
* [Aiven PostgreSQL](https://aiven.io/postgresql) - PostgreSQL as a service in AWS, Azure, DigitalOcean, Google Cloud and UpCloud; plans range from $19/month single node instances to large highly-available setups, free trial for two weeks.
* [Citus Cloud](https://www.citusdata.com/product/cloud) - Production grade scaled out PostgreSQL as a service enabling real-time workloads and sharding your multi-tenant apps.
* [Database Labs](https://www.databaselabs.io) - Get a production-ready cloud PostgreSQL server in minutes, from $20 a month Backups, monitoring, patches, and 24/7 tech support all included.
* [ElephantSQL](https://www.elephantsql.com/) - Offers databases ranging from shared servers for smaller projects and proof of concepts, up to enterprise grade multi server setups. Has free plan for up to 5 DBs, 20 MB each.
* [Heroku Postgres](https://elements.heroku.com/addons/heroku-postgresql) - Plans from free to huge, operated by PostgreSQL experts. Does not require running your app on Heroku. Free plan includes 10,000 rows, 20 connections, up to two backups, and has PostGIS support.
