SyncVault

What it does

SyncVault is an offline-first sync layer for apps. It captures user actions locally when the network drops or the app crashes, then safely replays them once connectivity returns. Designed for real-world conditions in emerging markets, it prevents data loss and ensures user intent always matches server reality across apps built with Flutter, iOS, Android, React Native, and web frameworks.

• BD
  Bi-directional sync between Postgres and SQLite2023 · powersync.com · ▲356

  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…

• 
  Flutter 2.02021 · ▲443

  Build beautiful native apps in record time, now on web too

• 
  Blockvault2018 · ▲122

  🔐Decentralized password manager for teams on Blockstack

• 
  Resilio Sync2020 · ▲72

  Simple file sync and share solution

• SO
  SyncKit – Offline-first sync engine (Rust/WASM and TypeScript)Nov 2025 · github.com · ▲87
• SO
  Syncular – offline-first SQL sync with TypeScript and Rust coresAug 2026 · github.com · ▲79

• 
  Dograh▲592

  The open source VAPI alternative

  Dev tools · 25d ago · dograh.com

• 
  Meridian▲530

  Don't let your work go unnoticed. Get promoted!

  Dev tools · 20d ago · meridiona.com

• 
  x1▲516

  Lovable for iPhone apps go from idea to App Store

  Dev tools · 11d ago · x1.new

• 
  Computable GPU Index (CGI)▲423

  The first open-source price index for GPU compute

  Dev tools · 10d ago · getcomputable.com

• 
  Open-Source eInk Bike Computer▲405

  OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.

  Dev tools · 2d ago · opentrailpaper.com

• 
  The GTM Co-Founder▲402

  Open-source GTM skills for technical founders

  Dev tools · 29d ago · gtmcofounder.com

• IN
  isometric.nyc – giant isometric pixel art map of NYC▲1,325

  Hey HN! I wanted to share something I built over the last few weeks: isometric.nyc is a massive isometric pixel art map of NYC, built with nano banana and coding agents. I didn't write a single line of code. Of course no-code doesn't mean no-engineering. This project took a lot more manual labor than I'd hoped! I wrote a deep dive on the workflow and some thoughts about the future of AI coding and creativity: http:&#x2F;&#x2F;cannoneyed.com&#x2F;projects&#x2F;isometric-nyc

  AI · Jan 2026 · cannoneyed.com

• 
  Cowork▲1,088

  Turn Claude into your digital coworker

  AI · Jan 2026 · claude.com

• 
  DataFast▲870

  Revenue-first analytics

  Growth · Jan 2026 · datafa.st

• 
  OpenClaw▲841

  The AI that actually does things

  AI · Jan 2026 · openclaw.ai

• 
  Kilo Code Reviewer▲801

  Automatic AI-powered code reviews the moment you open a PR

  Dev tools · Jan 2026 · kilo.ai

• 
  PostSyncer▲795

  AI Content Maker, for Social Media Publishing

  AI · Jan 2026 · postsyncer.com