InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now. Learn more →
Top 23 TypeScript local-first Projects
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siyuan
A privacy-first, self-hosted, fully open source personal knowledge management software, written in typescript and golang.
Project mention: SiYuan, Privacy First, Affero GPL, self-hosted PKMS written in ts and go | news.ycombinator.com | 2025-05-18I came across this project a while back and adopted it for my personal Personal Knowledge Management System/PKMS.
I've bounced around a few PKMS in the past, eventually settling on Obsidian but later moving to Logseq in an effort to avoid relying on closed source tooling. Then recently I discovered this project and I've been beyond impressed.
The desktop and mobile apps work very well and to be entirely honest are way more polished than I've come to expect from a FOSS PKMS, it's full featured with more or less everything I could want. It has a built in git-like VCS, it has integrated rendering for Mermaid, Plantuml, etc, and what I've personally found most interesting is it supports representing your notes as structured data that you can query with SQL.
My one gripe is the english docs are pretty sparse but otherwise I've had a phenominal time with SiYuan and I thought HN might find it interesting.
Github link: https://github.com/siyuan-note/siyuan
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SurveyJS
JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor. Keep full control over the data you collect and tailor the form builder’s entire look and feel to your users’ needs. SurveyJS works with React, Angular, Vue 3, and is compatible with any backend or auth system. Learn more.
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https://github.com/zadam/trilium#trilium-is-in-maintenance-m... above and beyond the license difference between the two (I'm not looking for trouble, I'm only saying they are different)
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Project mention: Local-first software: You own your data, in spite of the cloud | news.ycombinator.com | 2025-07-05
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blocksuite
🧩 Content editing tech stack for the web - BlockSuite is a toolkit for building editors and collaborative applications.
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one
❶ One is a new React framework - target web and native with a single Vite plugin and fully shared code, so you can ship cross-platform nearly as easy as single-platform.
Lately, I’ve discovered there’s One—no, not the meaning of life or the perfect coffee blend—but another framework in the endless ocean of JavaScript and React tools. I know what you’re thinking, "Oh great, another framework?" But hang with me—this one is worth your attention, and no, I’m not just saying that because it’s shiny and new. One might actually make your life as a developer a whole lot easier.
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data
WarpDrive is a lightweight data library for web apps — universal, typed, reactive, and ready to scale. (by emberjs)
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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livestore
LiveStore is a next-generation state management framework based on reactive SQLite and built-in sync engine.
Great questions!
> Handling compaction for long lived apps/pages?
That's a very common question and something I'm planning to ship a solution for soon. The basic idea is to give each event some more semantic "meaning" by annotating the event definition which allows you to express which events "semantically overlap". For example in a todo app you could express that the "todoCompleted" event for a given task id can compact other "todoCompleted" / "todoUncompleted" events for the same task id.
You can track the progress of this topic here: https://github.com/livestorejs/livestore/issues/254
> IMO events are nice, but also require discipline and good design w.r.t code
Yes, I agree with that. When it comes to data there is "no free lunch" - it's all about tradeoffs. I prefer the tradeoffs of event sourcing though for my own use cases such as Overtone.
That being said for many situations (like older client versions etc) there are pretty straightforward ways to address those concerns. Always depends on your application use case and possible tradeoffs though.
> Overtone looks sick. I've been using Spotify less and less because of janky UI and constant UI changes, would love a replacement. I see that it supports multiple sources, will it offer offline playback?
Very excited to hear! I'm sharing your frustrations which is why I'm building Overtone (next to many other reasons). Re "offline playback": That will depend on where your music is coming from. e.g. for your own music collection in Dropbox (or similar) it will be supported. For music streaming services like Spotify it will depend on their terms.
Hope that all makes sense?
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revezone
A lightweight local-first graphic-centric productivity tool to build your second brain. Supporting Excalidraw/Tldraw whiteboard and notion-like note. 一款以图形为中心、轻量级、本地优先的用于构建第二大脑的效率工具。支持 Excalidraw、Tldraw 白板和类 Notion 笔记。
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TidGi-Desktop
TidGi is an privacy-in-mind, automated, auto-git-backup, freely-deployed knowledge management Desktop note app, based on Tiddlywiki, with REST API for web-clipping and Anki connect. 「 太记 」是一个基于「 太微 TiddlyWiki 」的知识管理桌面应用，能保护隐私内容、高级自动化、自动Git云备份、部署为博客，且可通过RESTAPI与Anki等应用连接。（迭代开发中欢迎试用，开发进度见下方链接）(Under active development, see website below for details)
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Project mention: 🚀 Yo devs, wanna build collab apps that SLAP? Meet Jazz: the Real-Time Collab Framework That’s Straight Fire 🔥 | dev.to | 2025-05-23
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Project mention: Automerge: A library of data structures for building collaborative applications | news.ycombinator.com | 2024-07-19
It looks very similar to Evolu (https://github.com/evoluhq/evolu)
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bangle-io
A web only WYSIWYG note taking app that saves notes locally in markdown format. v2: https://staging.app.bangle.io/
I’m working on a web based note taking app that is open source and lets you own the notes in your file system - https://bangle.io
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Project mention: Earthstar – A database for private, distributed, offline-first applications | news.ycombinator.com | 2025-01-31
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json-joy
json-joy is a library that implements cutting-edge real-time and collaborative editing algorithms and utilities for JSON data models, with a focus on developing the JSON CRDT (Conflict-free Replicated Data Type) specification and implementation.
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fireproof
The vibe coding database runs in the browser, fits in the context window, and syncs anywhere.
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sqlocal
SQLocal makes it easy to run SQLite3 in the browser, backed by the origin private file system.
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Project mention: The Case for Edge AI: Are Small Language Models the Future of AI? | dev.to | 2025-03-20
If you’re a developer looking to explore offline AI, now is the perfect time to experiment with SLMs. Check out the GoatDB GitHub and start building your own local AI-powered applications.
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Stream
Stream - Scalable APIs for Chat, Feeds, Moderation, & Video. Stream helps developers build engaging apps that scale to millions with performant and flexible Chat, Feeds, Moderation, and Video APIs and SDKs powered by a global edge network and enterprise-grade infrastructure.
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 local-first discussion
TypeScript local-first related posts
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LiveStore
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🚀 Yo devs, wanna build collab apps that SLAP? Meet Jazz: the Real-Time Collab Framework That’s Straight Fire 🔥
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SiYuan, Privacy First, Affero GPL, self-hosted PKMS written in ts and go
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Show HN: Hyprnote – A privacy-first AI notepad that works locally
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Taking Notes with Joplin
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Sync Engines Are the Future
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Is One the Future of Web and Mobile Development?
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A note from our sponsor - InfluxDB
www.influxdata.com | 16 Jul 2025
Index
What are some of the best open-source local-first projects in TypeScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | siyuan | 35,860 |
| 2 | Trilium Notes | 29,384 |
| 3 | RxDB | 22,486 |
| 4 | anytype-ts | 5,706 |
| 5 | blocksuite | 5,076 |
| 6 | one | 4,199 |
| 7 | data | 3,078 |
| 8 | livestore | 2,626 |
| 9 | hyprnote | 2,621 |
| 10 | eidos | 2,525 |
| 11 | revezone | 2,283 |
| 12 | TidGi-Desktop | 1,888 |
| 13 | jazz | 1,821 |
| 14 | evolu | 1,659 |
| 15 | bangle-io | 1,137 |
| 16 | earthstar | 888 |
| 17 | json-joy | 887 |
| 18 | fireproof | 882 |
| 19 | CubyText | 764 |
| 20 | Matrix-CRDT | 758 |
| 21 | sqlocal | 600 |
| 22 | goatdb | 540 |
| 23 | lumen | 515 |
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