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Dev tools · alternatives · 2026

24 alternatives to Postgres-SQLite sync engine source code released under FSL

PowerSync Service is the server-side component of the PowerSync sync engine. - powersync-ja/powersync-service

A source code repository for a sync engine that enables data synchronization between Postgres and SQLite databases. Released under the Functional Source License, this tool is designed for developers who need to keep… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Postgres-SQLite sync engine source code released under FSL launched in 2024; newer entries below may have overtaken it.

  1. 1

    Hi HN, Today we’re launching PowerSync, a Postgres<>SQLite bi-directional sync engine that enables an offline-first app architecture. It currently supports Flutter, React Native and web (JavaScript) using Wasm SQLite in the browser, with more client SDKs on the way. Conrad and I (Ralf) have been working on our sync engine since 2009, originally as part of a full-stack app platform. That version of the system is still used in production worldwide and we’ve learnt a lot from its use cases and scaling. About a year ago we started on spinning off PowerSync as a standalone product that is…

    2023 · powersync.com · its alternatives →

  2. 2

    Hi HN, James, Valter, Sam and the team from ElectricSQL here. We're really excited to be sharing ElectricSQL with you today. It's an open source, local-first sync layer that can be used to build reactive, realtime, offline-capable apps directly on Postgres with two way active-active sync to SQLite (including with WASM in the browser). Electric comprises a sync layer (built with Elixir) placed in front of your Postgres database and a type safe client that allows you to bidirectionally sync data from your Postgres to local SQLite databases. This sync is CRDT-based, resilient to conflicting…

    2023 · electric-sql.com · its alternatives →

  3. 3

    Hi HN, We have been building SyncLite, an open-source platform to simplify offline-first application development. If your application uses SQLite or DuckDB, SyncLite lets it continue using the local database as usual while synchronization happens in the background. For SQL-based applications, SyncLite records transactions into transactionally consistent .sqlog files using SQLite as an open replication format. A background consolidator replays those transactions, derives row-level CDC and schema changes, and applies them transactionally to destination databases like PostgreSQL. The same…

    2024 · github.com · its alternatives →

  4. 4
    Whalesync▲362

    2-way sync Airtable, Webflow, Notion, Bubble, & Postgres

    2023 · whalesync.com · its alternatives →

  5. 5

    DropBox/GoogleDrive-style 2-way sync using rsync and fswatch - francoisp/DuplexRsync

    2019 · github.com · its alternatives →

  6. 6

    A truly Open Source MongoDB alternative. Contribute to FerretDB/FerretDB development by creating an account on GitHub.

    2023 · github.com · its alternatives →

  7. 7SO

    SQL OnLine - SQLite, DuckDB, PGLite, MariaDB / MySQL, PostgreSQL, MS SQL Server. AI error analysis, User-friendly interface for Data Science. No registration for start, No DownLoad, No Install. | sql compiler, federated queries, temporal query federation, BI Analytics

    2025 · sqliteonline.com · its alternatives →

  8. 8DA

    Hey HN! I’ve written a bunch of WebSocket servers over the years to do simple things like state synchronization, WebRTC signaling, and notifying a client when a backend job was run. I realized that if I had a simple way to create a private, temporary, mini-redis that the client could talk to directly, it would save a lot of time. So we created DriftDB. In addition to the open source server that you can run yourself, we also provide https:&#x2F;&#x2F;jamsocket.live where you can use an instance we host on Cloudflare’s edge (~13ms round trip latency from my home in NY). You may have seen my…

    2023 · driftdb.com · its alternatives →

  9. 9

    Offline-first SQL sync with Typescript and Rust cores - syncular/syncular

    Aug 2026 · github.com · its alternatives →

  10. 10

    pglite-fusion is a PostgreSQL extension that allows you to embed SQLite databases into your PostgreSQL tables by enabling the creation of columns with the `SQLITE` type. This means every row in the table can have an embedded SQLite database. In addition to the PostgreSQL `SQLITE` type, pglite-fusion provides the `query_sqlite`` function for querying SQLite databases and the `execute_sqlite` function for updating them. Additional functions are listed in the project’s README. The pglite-fusion extension is written in Rust using the pgrx framework [1]. ---- Implementation Details The PostgreSQL…

    2024 · github.com · its alternatives →

  11. 11

    Hey HN, we're Evis and Nick and we're excited to be launching Neosync (https:&#x2F;&#x2F;www.github.com&#x2F;nucleuscloud&#x2F;neosync). Neosync is an open source platform that helps developers anonymize production data, generate synthetic data and sync it across their environments for better testing, debugging and developer experience. Most developers and teams have some version of a database seed script that creates some mock data for their local and stage databases. The problem is that production data is messy and it’s very difficult to replicate that with mock data. This causes two big…

    2024 · github.com · its alternatives →

  12. 12

    A high-performance Postgres replication engine written in Rust. Embed it in your Rust application or run it as a standalone binary. - supabase/etl

    2024 · github.com · its alternatives →

  13. 13
    Hubsync▲78

    Hubspot data at your fingertips in real-time

    2023 · its alternatives →

  14. 14
    Supernova▲308

    All your data in Claude and Codex

    Aug 2026 · supernova.ai · its alternatives →

  15. 15
    Sequin▲99

    The fastest way to integrate with third-party APIs.

    2022 · its alternatives →

  16. 16

    Distributed Time Synchronization Service. Contribute to rubrikinc/kronos development by creating an account on GitHub.

    2018 · github.com · its alternatives →

  17. 17

    Local-first collaboration SDK for React, Vue, and Svelte. Batteries-included: Rich text, undo/redo, cursors, and presence. - Dancode-188/synckit

    Nov 2025 · github.com · its alternatives →

  18. 18SA

    Hi HN! I’m Eoin, founder of Sourcetable (https:&#x2F;&#x2F;sourcetable.com). Sourcetable is an AI-native spreadsheet that syncs with all your data. Users pair with an AI copilot that helps them do their spreadsheet work, as well as more database-centric analysis and SQL. Soucetable syncs with databases including Postgres, MySQL, and MongoDB, and over 100+ business applications including Stripe, Zendesk, Hubspot, Quickbooks and Google Analytics. That data is available in a spreadsheet, and any models you build automatically update in near-real-time as new data flows in. The core primitives…

    2024 · its alternatives →

  19. 19

    postgres + sqlite = pglite. Contribute to viggy28/pglite development by creating an account on GitHub.

    2024 · github.com · its alternatives →

  20. 20
  21. 21

    Logical multi-master PostgreSQL replication. Contribute to pgEdge/spock development by creating an account on GitHub.

    2025 · github.com · its alternatives →

  22. 22

    Broadcast, Presence, and Postgres Changes via WebSockets - supabase/realtime

    2020 · github.com · its alternatives →

  23. 23

    Sync Salesforce and Postgres: alternative to Heroku Connect

    2023 · its alternatives →

  24. 24

    Versioning filesystem for Sqlite. Contribute to sudeep9/mojo development by creating an account on GitHub.

    2022 · github.com · its alternatives →

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Postgres-SQLite sync engine source code released under FSL…