Compare 30+ free database hosting options — Postgres, MongoDB, Redis, SQLite, graph, vector, and time-series. Exact free tier limits for Supabase, Neon, Turso, Upstash, and more. Catalogue dates July to September 2026.
Choosing a database is one of the most consequential infrastructure decisions for any project. The good news: in 2026, there are 45 free database options across every category — relational, document, key-value, edge, graph, vector, and time-series. The bad news: free tiers vary wildly, from MongoDB Atlas's cramped 512 MB to Turso's generous 5 GB.
This page compares every free database in our index, organized by type, with exact limits read from live pricing pages. Whether you need a Postgres database, a Redis cache, an edge SQLite store, or a vector database for RAG — we've got the comparison.
New: See our Database Free Tier Comparison 2026 for a focused side-by-side matrix of the top 10 databases with use-case recommendations and the story of PlanetScale’s free tier removal.
Recent Database Pricing Changes
Supabase: Project pause policy tightened — inactive projects now pause after 1 week Source ↗
Neon: Neon moved its paid Launch and Scale plans to usage-based pricing with a $5 monthly minimum. The Free plan went from ... Source ↗
Neon: Neon doubled the Free plan's compute from 50 to 100 CU-hours per project a month. Source ↗
Neon: Neon made Neon Auth available on all plans, including Free. Source ↗
Neon: Neon raised the Free plan's project limit from 80 to 100, the last of seven increases since 2025-08-29, when the limi... Source ↗
Neon: Neon's Free plan went from one member per organization to unlimited members. Source ↗
Postgres development platform: database, Auth, Storage, Realtime and Edge Functions. The Free plan is $0: unlimited API requests, 50,000 monthly active users, a 500 MB database on a shared CPU with 500 MB RAM, 5 GB egress plus 5 GB cached egress, 1 GB file storage, 500,000 Edge Function invocations, and Realtime with 200 concurrent connections and 2 million messages a month. Free projects are paused after 1 week of inactivity, with a limit of 2 active projects. Pro starts at $25 a month for the first project and includes $10 a month of compute credits, enough for one Micro instance.
Serverless Postgres with branching — free tier includes 100 CU-hours/month per project, 0.5 GB storage per project, up to 100 projects, 10 branches per project, Neon Auth (60K MAU), auto-scaling up to 2 CU, scale-to-zero, 5 GB of Object Storage, and Functions (10 active capacity-hours, 400 waiting capacity-hours, 1M invocations)
Distributed SQL database. No free plan for new deployments since 2026-09-15, when CockroachDB moved new clusters to Cockroach Continuum pricing. New Cloud organizations get a 30-day free trial with $400 in credit; Standard is $0.092 per vCPU-hour. Clusters created before 2026-09-15 stay on their existing plans during their current term.
Open-source Postgres platform (Apache 2.0) with copy-on-write branching and scale-to-zero. Self-hosted on Kubernetes — free forever. Managed platform is now paid (compute + storage billed hourly); 14-day free trial with $100 credit on the commercial tier.
Open-source backend with Postgres and Hasura GraphQL, plus Auth, Storage and Functions. The Starter plan is $0 a month: 1 GB database, 1 GB storage and 5 GB egress, with functions, realtime APIs and unlimited users. It is limited to 1 project, and the project is paused after 1 week of inactivity. Pro starts at $25 a month with $15 of compute credits, a 10 GB database, 50 GB storage and 50 GB egress.
Postgres for multi-tenant apps — 1 GB storage, 50M serverless query tokens, 500 max connections. Unlimited databases and tenant DBs. Always-on (no cold starts)When we last read the page we cite for this offer, on 2026-09-21, we refused the change we considered recording because it named no figure that had moved, and refusing a change is not a confirmation of the terms above, so we cannot confirm these terms today.
Instant GraphQL API engine over any database — Includes: Unlimited models, at any scale 1 supergraph developer Observability: 15-minute retention API GraphQL API (filtering, pagination, sorting, aggregations) Relay API Nested filtering Nested aggregations Nested pagination Nested sorting API versioning Field & entity level authorization Infrastructure API requests/month - No limit Concurrent API users - No limit Autoscaling Zero cold-start Global Edge network Intelligent geo routing DDoS protection Connectors Database connectors Code connectors API connectors DIY: build & connect your own connector Optional hosting for third-party & code connectors - $0.075/vCPU-hour, $0.0075/GiB-hour Console Supergraph explorer & registry Query plan & trace viewer CI/CD Breaking change detection Immutable builds & build URLs Local development Self-hosting with v3 graphql-engine Collaboration Schema registry & changelog
Open-source BaaS — 75K MAU, 2 GB storage, 750K function executions/month, 5 GB bandwidth, 1 database, 1 bucket and 2 functions per project. Limit of 2 projects. Projects pause after 1 week of inactivity and are deleted after 90 days paused
Open-source backend in a single Go binary — SQLite database, real-time subscriptions, built-in auth (email, OAuth2), file storage (S3-compatible), REST API. Completely free and self-hosted, no vendor lock-in. Single executable, no dependenciesThe page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-16, so we cannot confirm these terms today.
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 AIThe page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.
Key-value store at the edge — Free plan includes 100,000 keys read/day, 1,000 keys written/day, 1,000 keys deleted/day, 1,000 list requests/day, and 1 GB stored data. All limits reset daily at 00:00 UTC.
Managed Valkey cache, cluster and pub/sub, formerly a serverless cache with a free tier. No free tier. gomomento.com/pricing, read 2026-09-05, prices every plan: Momento Cache Flex from $13 per GB-month, Momento Cache Cluster from $0.0105 per instance-hour, Pub/sub Topics from $1 per 1M operations, Valkey Router $0.01 per GB of data transfer. The only $0 on the page is the Starter Basic Support plan, which is a support level and not a product allowance.
Official AWS DynamoDB emulator for local development and testing. Full DynamoDB API compatibility. Runs as downloadable JAR or Docker container. No AWS account needed, no network latency, no usage charges. Supports streams, transactions, TTL, and all query patternsThe page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.
Graph database cloud service — free tier: single database, up to 200,000 nodes and 400,000 relationships. Full Cypher query language support. No credit card required
Managed Milvus vector database — free tier: 5 GB storage, 2.5M vector compute units/month, up to 5 collections. Milvus open-source also free to self-host with no limitsWhen we last read the page we cite for this offer, on 2026-09-22, we refused the change we considered recording because it named no figure that had moved, and refusing a change is not a confirmation of the terms above, so we cannot confirm these terms today.
Embedded vector database — OSS: fully free, runs locally or in your cloud, no limits. Cloud: $100 in one-time free credits for serverless managed offering. Usage-based pricing after credits
Time-series database — free tier: 5 MB writes per 5 minutes, up to 10,000 data series, 30-day data retention. Auto-provisioned for new accounts. Ideal for IoT and monitoring workloads
Storage limits are for the free tier only. PocketBase, Weaviate, and Xata (post-April-2026 open-source pivot) are unlimited when self-hosted. Catalogue dates July to September 2026.
Which Free Database Should I Use?
Building a full-stack web app?
Supabase or Nhost — Postgres + auth + storage + real-time in one platform. Supabase has the larger ecosystem.
Need serverless Postgres with branching?
Neon (managed, branching, scale-to-zero). Xata went open-source (Apache 2.0) in April 2026 — self-host on Kubernetes for unlimited free usage with copy-on-write branching and scale-to-zero.
Building at the edge?
Turso (5 GB, 500M reads) or Cloudflare D1 (5 GB, tight Workers integration). Both use SQLite under the hood.
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