Databases and caches
Amazon DynamoDB
Open source
Serverless key-value and document database on AWS.
Amazon ElastiCache
Open source
Managed Redis and Memcached on AWS.
Amazon OpenSearch
Open source
Managed search and log analytics on AWS.
Used byHotmart
Amazon RDS
Open source
Managed PostgreSQL, MySQL and other relational databases on AWS.
Used byPicPay
ClickHouse
Open source
Column database for fast analytics over billions of rows.
Used byPlausible Analytics,PostHog,Resend,Vercel
Datomic
Open source
Database that keeps every fact over time, built for Clojure.
Used byNubank
Google Cloud Bigtable
Open source
Google's wide-column database for huge, fast read and write workloads.
Used byRD Station
ScyllaDB
Open source
Cassandra-compatible database built for very low latency at scale.
Used byDiscord
Upstash
Open source
Serverless Redis, queues and vector database billed per request.
Used byDub
Vitess
Open source
Scales MySQL horizontally by sharding it, created at YouTube.
Data from the open Wappalyzer database (enthec/webappanalyzer, GPL-3.0), updated every week. Site counts from the HTTP Archive. Code tools (frameworks, build, ORMs…) come from a list kept by Faundr.