🌟 Always Free Cloud Database Options (Unlimited Duration)
✅ 1. AWS DynamoDB (NoSQL)
✔ NoSQL database from Amazon with a true free tier (always free).
📦 Includes up to 25 GB storage, and monthly read/write capacity allowances. (Amazon Web Services, Inc.)
Good for: scalable key-value/document storage, JSON apps.
✅ 2. Google Cloud Always Free Databases
Google Cloud has Always Free quotas on some database services — e.g., small amounts of storage for query and data processing each month. (Micro Exits)
Good for: lightweight SQL/NoSQL tasks and experimenting.
⚠️ Note: specific limits vary by service — not all GCP databases are always free (e.g., Cloud SQL may not be always free). (Micro Exits)
✅ 3. Oracle Cloud Always Free
Oracle Cloud Free Tier includes “Always Free” database services you can run without time limits:
✔ Autonomous JSON/Autonomous DB
✔ NoSQL Database
✔ MySQL DB (free tier, sometimes included) (Oracle)
Good for: experimenting with SQL or NoSQL long-term.
💡 Cloud Database Free Tiers (Not Always Entirely Unlimited, But Very Generous)
These have free tiers that don’t expire as long as you stay within quota:
✔ Supabase (PostgreSQL-based)
Free tier suitable for small apps with auth + real-time DB. (tencentcloud.com)
✔ Firebase (Firestore / Realtime DB)
Google’s NoSQL DB with a free tier, directly usable from frontend JS. (tencentcloud.com)
✔ MongoDB Atlas
Free shared cluster with ~512 MB of storage — good for prototyping JSON-style apps. (tencentcloud.com)
✔ PlanetScale (MySQL serverless)
Free tier serverless MySQL database — auto-scale and branching. (tencentcloud.com)
✔ Neon (PostgreSQL Serverless)
Serverless Postgres with free tier — great for SQL apps without backend servers. (tencentcloud.com)
🧾 Summary — Free Forever? What That Means
| Service | Always Free | Free Tier (Quota) | Good For |
|---|---|---|---|
| AWS DynamoDB | ✔️ yes | monthly limits | NoSQL apps |
| GCP Always Free | ✔️ yes | limited quotas | small SQL/NoSQL |
| Oracle Always Free | ✔️ yes | limited quotas | SQL/NoSQL |
| Supabase | ❓ free tier | yes (quota) | SQL apps |
| Firebase | ❓ free tier | yes (quota) | Realtime/NoSQL |
| MongoDB Atlas | ❓ free tier | yes (quota) | NoSQL |
| PlanetScale | ❓ free tier | yes (quota) | SQL |
| Neon | ❓ free tier | yes (quota) | SQL |
- Always Free = available forever (as long as you’re within the limits). (Oracle)
- Free Tier (Quota) = free up to a certain size/usage each month — but it doesn’t expire yearly.
🧠 Practical Advice
👉 If your goal is frontend-only, and you want DB storage without backend code, the easiest options are:
- Firebase Firestore (NoSQL + JS SDK)
- Supabase (SQL + REST/JS SDK)
- MongoDB Atlas (JSON docs)
These let you store and retrieve data directly from your frontend app without a custom backend.