Best free tier for baas

Postgres + auth + storage + realtime in one free tier.

Bandwidth

5 GB egress/month

Requests

500 MB database, 50k monthly active users (auth)

Paid from

$25/mo

Google’s BaaS on the Spark free plan: Firestore 50k reads / 20k writes / 20k deletes per day + 1 GiB storage, Authentication 50k monthly active users, Hosting 10 GB bandwidth + 360 MB storage, Cloud Storage 5 GB, and Cloud Functions 2M invocations/month. The paid Blaze plan is pay-as-you-go with the free quota always included.

Bandwidth

10 GB/month (Hosting)

Requests

50k Firestore reads/day, 50k MAU (auth), 2M Functions invocations/month

Paid from

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Open-source (MIT) single-binary BaaS — one file embeds SQLite, auth, file storage, realtime subscriptions, and an admin UI. Free to self-host with no limits; no official managed free tier (PocketHost offers free community hosting).

Bandwidth

unlimited (self-hosted)

Requests

Single binary: SQLite DB + auth + file storage + realtime; unlimited self-hosted

Paid from

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Open-source (BSD-3) self-hostable BaaS you can run for free with unlimited everything, or use Appwrite Cloud free tier: 2 GB database storage, 750k monthly active users, 1 GB file storage, and 1M function executions/month. Pro is pay-as-you-go.

Bandwidth

unlimited (self-hosted)

Requests

Cloud free: 2 GB database, 750k auth MAU, 1 GB files, 1M executions/month

Paid from

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