Airtableairtable.com
Spreadsheet-style interface over a relational database with an API.
1,200 rows/base
Unlimited bases, 1,000 API requests/mo
Managed databases
41 services
Database free tiers are capped on storage first, then on compute or request volume, and the second limit is often the one that matters. Neon gives 0.5 GB of Postgres storage per project across up to 100 projects, with 100 compute-unit hours a month each, and scales idle compute to zero, so the first query after a pause is slower. Prisma Postgres offers 1 GB and 200,000 operations a month without a card. CockroachDB Cloud allows 10 GB of storage and 50M request units a month. Aiven runs a single-node Postgres or MySQL with 1 GB of storage.
41 services
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Aivenaiven.io
Managed PostgreSQL, MySQL and Valkey on Aiven's open source data platform.
1 GB storage
1 CPU, 1 GB RAM, Single node
Amazon DynamoDBby Amazon Web Services
Serverless key-value and document database with single-digit millisecond reads.
25 GB storage
Azure Cosmos DBby Microsoft Azure
Globally distributed NoSQL database with document, key-value and graph APIs.
25 GB storage
1,000 RU/s throughput
Bytebasebytebase.com
Database change management with review workflows and CI/CD for schema migrations.
20 users
10 database instances
Cloudflare D1by Cloudflare
Serverless SQLite database built for use from Cloudflare Workers.
5M rows read/day
100,000 rows written/day, 1 GB storage
Cloudflare Workers KVby Cloudflare
Eventually consistent key-value store readable from Workers at the edge.
100,000 reads/day
1,000 writes/day, 1 GB storage
CockroachDB Cloudcockroachlabs.com
Managed distributed SQL database from Cockroach Labs.
10 GB storage/mo
50M request units/mo
codehooks.iocodehooks.io
JavaScript backend with NoSQL storage, key-value, jobs, queues and realtime messages.
- No card
5 GB storage
60 API calls/min, 2 developers
Couchbase Capellacouchbase.com
Managed Couchbase NoSQL clusters in the cloud.
8 GB storage
1 node
CrateDBcrate.io
Distributed SQL engine for live analytics, offered as a managed cluster.
- No card
- Open source
8 GB storage
2 CPUs, 2 GB RAM, 1 cluster
Cubecube.dev
Semantic layer that models warehouse data and serves it to apps through APIs.
1,000 queries/day
DB Designerdbdesigner.net
Online tool for drawing and modeling relational database schemas.
2 database models
10 tables per model
10 GB data moved/mo
2 connector instances
filess.iofiless.io
Small hosted MySQL, MariaDB, MongoDB or PostgreSQL databases.
2 databases
10 MB per database
InfluxDBinfluxdata.com
Hosted time series database for metrics and event data.
3 MB writes per 5 min
30 MB reads per 5 min, 10,000 series cardinality
Layerbaselayerbase.com
Managed Postgres, MariaDB, Redis, DuckDB, SQLite and other engines with branching.
2 databases
150 GB throughput/mo, 1 branch per database
MantleDBmantledb.sh
Account-free JSON buckets for scripts and small apps, with separate write and read-only IDs.
- No sign-up
1 bucket
1 MB per bucket, Deleted after 72 hrs inactive
MemCachiermemcachier.com
Hosted Memcache caching service.
25 MB cache
1 proxy server
MongoDB Atlasmongodb.com
MongoDB's managed document database cloud service.
512 MB storage
Neo4j Auraneo4j.com
Managed graph database queried with Cypher or a REST API.
200,000 nodes
400,000 relationships
Neonneon.com
Serverless Postgres with branching, autoscaling and scale-to-zero compute.
0.5 GB storage per project
100 projects, 100 CU-hrs/mo per project, 5 GB object storage per project
Nilethenile.dev
Postgres platform for B2B SaaS with tenant-aware data and vector embeddings.
1 GB storage
Unlimited databases, 50M query tokens
Preset Cloudpreset.io
Managed Apache Superset for BI dashboards, charts and SQL editing.
5 users
Unlimited dashboards
Prisma Postgresprisma.io
Hosted PostgreSQL 17 on bare metal without cold starts, usable from any client.
- No card
1 GB storage
200,000 operations/mo, 50 databases
Qdrantqdrant.tech
Vector search database for storing and querying embeddings.
4 GB disk
1 GB RAM, 0.5 vCPU
restdb.iorestdb.io
NoSQL cloud database with schemas, relations, an auto-generated REST API and admin UI.
2,500 records
3 users, 1 API request/sec
Row Zerorowzero.io
Spreadsheet that connects to databases, S3 and APIs for working with millions of rows.
3 workbooks
SeaTableseatable.io
Spreadsheet-style database from the makers of Seafile.
2,000 rows
25 team members, Unlimited tables, 1 month version history
StackBystackby.com
Spreadsheet-database hybrid with integrations into common business apps.
10 stacks
Unlimited users, 2 GB attachments per stack
Tinybirdtinybird.co
Managed ClickHouse that ingests over HTTP and serves SQL queries as API endpoints.
10 GB storage
1,000 API requests/day
Turso by ChiselStriketurso.tech
SQLite-compatible edge database with replicas and local development support.
9 GB storage
500 databases, 1B row reads/mo, 3 locations
Upstashupstash.com
Serverless Redis billed per command.
500,000 commands/mo
256 MB max database, 20 concurrent connections
Limits not listed
EverSQLeversql.com
SQL query and database performance analysis with automatic tuning recommendations.
Limits not listed
getpantry.cloudgetpantry.cloud
JSON document store behind a simple API, suited to hackathons, side projects and mobile apps.
Limits not listed
holistic.devholistic.dev
Static analyzer for PostgreSQL schemas and queries that flags performance and security problems.
Limits not listed
MySQL Visual Explainmysqlexplain.com
Visualiser that turns MySQL EXPLAIN output into a readable plan for tuning slow queries.
Limits not listed
npoint.ionpoint.io
Hosted JSON documents with shared schema editing, readable over a simple API.
Limits not listed
SimpleRestoresimplerestore.io
Restores MySQL backup files into a remote database without writing code or running a server.
Limits not listed
Supabasesupabase.com
Postgres-based backend offering auth, realtime subscriptions and object storage.
- Open source
Limits not listed