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Top 23 TypeScript offline-first Projects
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berty
Berty is a secure peer-to-peer messaging app that works with or without internet access, cellular data or trust in the network
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AppSignal
AppSignal knows why the f*#k it crashed. Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.
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Project mention: Coding agents for production iOS: a senior engineer's setup for 2x the output | dev.to | 2026-02-18
I'm a senior iOS engineer at Anytype, fully responsible for the open-source iOS app. I've been using a coding agent daily for about 8 months now, and I recently pulled my Task tracker data to see what happened to my productivity. I was expecting maybe a 30-50% bump. It was over 100%. Without compromises for the quality, or overtime work. I stared at the chart for a while.
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File Viewer
Preview 206 file extensions in the browser. Office, PDF/OFD, CAD, archives, email, diagrams and more, with 24 lazy pipelines and no server-side conversion.
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SyncedStore
SyncedStore CRDT is an easy-to-use library for building live, collaborative applications that sync automatically.
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voiden
Design, Test and Document APIs in plain Markdown. Compose Requests with API blocks. Reuse, Replace & Version everything just like code. Offline, Truly Git Native, No Lock-in.
Project mention: Ask HN: What are you working on? (October 2026) | news.ycombinator.com | 2026-10-01Building the MCP for Voiden, the API IDE we open sourced a year ago almost. Added the ability to test APIs through AI also create MCP. Basically going headless
github: https://github.com/VoidenHQ/voiden
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client-side-databases
An implementation of the exact same app in Firestore, AWS Datastore, PouchDB, RxDB and WatermelonDB
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The app is offline-first on PowerSync, and the pill was reading PowerSync's own connection state, which comes from the socket.
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synckit
Local-first collaboration SDK for React, Vue, and Svelte. Batteries-included: Rich text, undo/redo, cursors, and presence.
Project mention: The WebSocket Message That Disappeared Between the Browser and the Server | dev.to | 2026-02-17I was building Synckit, a real-time sync SDK that uses CRDTs for conflict-free collaboration. The demo app, LocalWrite, is a collaborative document editor. Think Google Docs, but local-first. Two users open the same document, type at the same time, and their changes merge automatically.
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yomikiru
A powerful offline manga, manhwa, comic, and novel reader for desktop Yomikiru is a feature-rich desktop application designed for reading locally stored manga, comics, webtoons, and EPUB novels. Built with Electron and React, it offers a customizable and distraction-free reading experience.
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corgi
A TypeScript library for decoding and validating Vehicle Identification Numbers (VINs) using a customized VPIC database.
Project mention: Building a Community Contribution System for VIN Decoding Patterns | dev.to | 2026-03-12We maintain Corgi, an open-source offline VIN decoder. To handle international vehicles, we built a community contribution system. Here's how it works.
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Project mention: Show HN: Syncular – offline-first SQL sync with TypeScript and Rust cores | news.ycombinator.com | 2026-08-02
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offlinenotepad
An offline-first, secure, private notepad. :notebook_with_decorative_cover: :pencil2:
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state
A Redux-based state container for local-first software, offering seamless synchronization using Automerge CRDTs. (Formerly known as 🐟 Cevitxe). (by local-first-web)
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docukit
DocNode y DocSync Monorepo. Type-safe documents with conflict resolution. Faster than any CRDT.
Project mention: Type-safe documents with conflict resolution. Faster than any CRDT | news.ycombinator.com | 2026-09-24 -
Project mention: Show HN: Aurora – open-source cross-platform music player (lossless) | news.ycombinator.com | 2026-01-13
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
TypeScript offline-first discussion
TypeScript offline-first related posts
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Type-safe documents with conflict resolution. Faster than any CRDT
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Why your app still says connected after the network is gone
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Show HN: Syncular – offline-first SQL sync with TypeScript and Rust cores
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Offline reads are easy. Durable offline writes are the hard part.
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Why I Left Postman — The Real Cost of a Cloud-First API Client
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Coding agents for production iOS: a senior engineer's setup for 2x the output
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SyncForge – CRDT library faster than Yjs with full TypeScript support
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A note from our sponsor - SaaSHub
www.saashub.com | 7 Oct 2026
Index
What are some of the best open-source offline-first projects in TypeScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | berty | 9,311 |
| 2 | anytype-ts | 8,880 |
| 3 | TagSpaces | 5,301 |
| 4 | undb | 2,955 |
| 5 | File Viewer | 2,464 |
| 6 | evolu | 1,899 |
| 7 | SyncedStore | 1,863 |
| 8 | voiden | 1,861 |
| 9 | earthstar | 918 |
| 10 | client-side-databases | 898 |
| 11 | powersync-js | 728 |
| 12 | synckit | 667 |
| 13 | yomikiru | 557 |
| 14 | unforget | 395 |
| 15 | corgi | 332 |
| 16 | syncular | 302 |
| 17 | offlinenotepad | 263 |
| 18 | langchain-alpaca | 215 |
| 19 | state | 193 |
| 20 | instldraw | 107 |
| 21 | docukit | 97 |
| 22 | aurora | 85 |
| 23 | daily-habit-tracker | 80 |
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