Databases & backend
PowerSync
Backend database sync engine for real-time, fast, consistent, network-resilient applications
- 0community votes
- 66DR by Ahrefs no change since last check
- 2022founded
Ahrefs Domain Rating listed 6 Nov 2026, relisted 1 Nov 2026.
A sync engine that automatically syncs backend databases (Postgres, MongoDB, MySQL, SQL Server, Azure DocumentDB) with client-side SQLite for offline-first
What it is
PowerSync: the homepage
PowerSync is a sync engine consisting of a backend service and client SDKs that keeps a local SQLite database for every user in sync with an existing backend database. It enables bi-directional synchronization, real-time streaming updates, and offline-first functionality for web, mobile, desktop, and embedded applications. The service handles state transfer and consistency guarantees on the server side, while client SDKs manage persistence in SQLite with instant UI reactivity and the ability to sync write operations back to the backend. PowerSync reduces code complexity by abstracting state management into a robust architecture, eliminating the need for custom sync code, cache invalidation logic, and optimistic update handling.
Listed capabilities
- Real-time streaming sync
- Partial syncing with Sync Streams
- Bi-directional synchronization
- JWT-based authentication
- Consistency guarantees
- Conflict resolution
- Horizontal scalability
Pricing
Pricing model: Freemium
Free plan: $0/month with up to 2 GB data synced/month, 500 MB hosted data, 50 peak concurrent clients. Pro plan: from $49/month with 30 GB data synced/month included, 10 GB hosted data, 1,000 peak concurrent clients. Team plan: from $599/month with additional features like uptime guarantee and SOC 2
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PowerSync metrics
| Metric | Value |
|---|---|
| Domain Rating | 66 no change since last check |
| Trust Flow | 13 no change since last check |
| Citation Flow | 39 no change since last check |
| Referring domains | 549 no change since last check |
| External backlinks | 3,502 no change since last check |
Ahrefs Domain Rating listed 6 Nov 2026, relisted 1 Nov 2026. Listed under topic: Computers/Data Formats (12). Majestic listed 1 Nov 2026, relisted 1 Nov 2026. Link data listed by Majestic. Trust Flow, Citation Flow and Topical Trust Flow are trademarks of Majestic-12 Ltd.
PowerSync domain listing data
Show the listing data
| Domain age | 29 years |
|---|---|
| Registered | |
| Expires | |
| Registrar | Amazon Registrar, Inc. |
| DNSSEC | Not signed |
PowerSync launch receipt entry
| Measure | At launch, then latest |
|---|---|
| Domain Rating (Ahrefs) | 66 to 66 no change since launch 1 Nov 2026, then 5 Nov 2026 |
| Trust Flow (Majestic) | 13 first measured 1 Nov 2026 |
| Referring domains (Majestic) | 549 first measured 1 Nov 2026 |
Day 4 since launch. Next receipt: day 30, 1 Dec 2026. We show what changed, not what caused it: many things affect these numbers. Nothing here is estimated.
Before you launch
The playbook on SaaS Directory List lists what to prepare, what to post on launch day and where else to list your product.
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Quick answers
Is PowerSync open source?
Yes, PowerSync itself is open-source and source-available, and builds on open database technologies without requiring you to adopt a new database.
What platforms does PowerSync support?
PowerSync provides client SDKs for web, mobile, desktop, embedded/headless applications, and agents. One sync architecture enables high-quality software across every platform.
Does PowerSync provide offline functionality?
Yes, PowerSync offers full offline SQLite persistence (even in web apps) so applications can reload even if the network is down, or in-memory options to survive temporary network blips.
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