Managed Data Services

8base is a full-stack low-code development platform built for JavaScript developers built on top of MySQL and GraphQL and serverless backend-as-a-service. It allows you to start building web applications quickly using a UI app builder and scale quickly, The Free tier includes rows: 2,500, Storage: 500, Serverless computing: 1Gb/h, and client app users: 5.

Looks like a spreadsheet, but it's a relational database unlimited bases, 1,200 rows/base, and 1,000 API requests/month

Aiven offers free PostgreSQL, MySQL and Valkey (Redis compatible) plans on its open-source data platform. Single node, 1 CPU, 1GB RAM, and for PostgreSQL and MySQL, 1GB storage. Easy migration to more extensive plans or across clouds.

Free tier offers 50 million RUs and 10 GiB of storage (same as 15$ worth) free per month. ([What's the Request Units](https://www.cockroachlabs.com/docs/cockroachcloud/metrics-request-units.html))

Easy to use JavaScript serverless API/backend and NoSQL database service with functions, Mongdb-ish queries, key/value lookups, a job system, realtime messages, worker queues, a powerful CLI and a web-based data manager. Free plan has 5GB storage and 60/API calls per minute. 2 developers included. No credit-card required.

deploy a forever free tier fully managed database cluster with 1 node and 8GB storage, built for developers to create the next generation of applications across IoT to AI

Distributed Open Source SQL database for real-time analytics. [Free Tier CRFREE](https://crate.io/lp-crfree): One-node with 2 CPUs, 2 GiB of memory, 8 GiB of storage. One cluster per organization, no payment method needed.

filess.io is a platform where you can create two databases with up to 10 MB per database of the following DBMS for free: MySQL, MariaDB, MongoDB, and PostgreSQL.

Timeseries database, free up to 3MB/5 minutes writes, 30MB/5 minutes reads and 10,000 cardinalities series

Managed Memcache service. Free for up to 25MB, 1 Proxy Server, and basic analytics

free tier gives 512 MB

Managed native Graph DBMS / analytics platform with a Cypher query language and a REST API. Limits on graph size (200k nodes, 400k relationships).

Managed PostgreSQL, 0.5 GB of storage per project, 100 Projects ,10 branches per project, Unlimited Databases, always-available primary branch ( Auto suspend after 5 minutes), 20 hours of Active time per month (total) for non-primary branch compute.

A Postgres platform for B2B apps. Unlimited databases, Always available with no shutdown, 1GB of storage (total), 50 million query tokens, autoscaling, unlimited vector embeddings

Super fast hosted Postgres built on unikernels and running on bare metal, 500MB total storage, 5 databases, integrated with Prisma ORM.

Vector Database for embedding data, single node cluster with 0.5 vCPU, 1GB RAM, and 4GB disk.

a fast and straightforward NoSQL cloud database service. With restdb.io you get schema, relations, automatic REST API (with MongoDB-like queries), and an efficient multi-user admin UI for working with data. The free plan allows 3 users, 2500 records, and 1 API request per second.

Managed PostgreSQL with pgvector optimized for AI workloads. The free tier includes 2GB storage, daily snapshots, 14-day point-in-time recovery, and a built-in SQL editor that converts search queries to vector embeddings.

Flexible, Spreadsheet-like Database built by the Seafile team. unlimited tables, 2,000 lines, 1-month versioning, up to 25 team members.

Cloud Data Platform offers a free tier and all plans are completely free while in beta

One tool that combines spreadsheets' flexibility, databases' power, and built-in integrations with your favorite business apps. The free plan includes unlimited users, ten stacks, and a 2GB attachment per stack.

A serverless managed ClickHouse with connection-less data ingest over HTTP and lets you publish SQL queries as managed HTTP APIs. There is no time limit on free-tier, 10GB storage + 1000 API requests per day.

Turso is SQLite Developer Experience in an Edge Database. Turso provides a Free Forever starter plan, 9 GB of total storage, Up to 500 databases, Up to 3 locations, 1 billion row reads per month, and Local development support with SQLite.

Serverless Redis with free tier up to 500K monthly commands, 256MB max database size, and 20 concurrent connections