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Dancode-188
synckit
TypeScript2025–2026
Dancode-188 / synckit

synckit

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

Web DevelopmentSystems & InfrastructureData & DatabasesLibraries & SDKs
Explore on GitHubRead Hacker News discussions
3Distinct people
8Mentions
0Explicit recommenders
672GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

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

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 11:19:25 AM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by week8 dated mentions

Observed mentions: 2025-11-27 14:31:44 UTC to 2026-02-10 15:41:48 UTC. Weeks start Monday, UTC.

012342025-11-24 00:00:00 UTC to 2025-12-01 00:00:00 UTC (exclusive): 4 mentions; 1 submissions, 3 commentsNov 242025-12-01 00:00:00 UTC to 2025-12-08 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-12-08 00:00:00 UTC to 2025-12-15 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-12-15 00:00:00 UTC to 2025-12-22 00:00:00 UTC (exclusive): 2 mentions; 1 submissions, 1 comments2025-12-22 00:00:00 UTC to 2025-12-29 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-12-29 00:00:00 UTC to 2026-01-05 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsDec 292026-01-05 00:00:00 UTC to 2026-01-12 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-01-12 00:00:00 UTC to 2026-01-19 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-01-19 00:00:00 UTC to 2026-01-26 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-01-26 00:00:00 UTC to 2026-02-02 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-02 00:00:00 UTC to 2026-02-09 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-02-09 00:00:00 UTC to 2026-02-16 00:00:00 UTC (exclusive): 2 mentions; 1 submissions, 1 commentsFeb 9

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Nov 242025-11-24 00:00:00 UTC2025-12-01 00:00:00 UTC413
Dec 12025-12-01 00:00:00 UTC2025-12-08 00:00:00 UTC000
Dec 82025-12-08 00:00:00 UTC2025-12-15 00:00:00 UTC000
Dec 152025-12-15 00:00:00 UTC2025-12-22 00:00:00 UTC211
Dec 222025-12-22 00:00:00 UTC2025-12-29 00:00:00 UTC000
Dec 292025-12-29 00:00:00 UTC2026-01-05 00:00:00 UTC000
Jan 52026-01-05 00:00:00 UTC2026-01-12 00:00:00 UTC000
Jan 122026-01-12 00:00:00 UTC2026-01-19 00:00:00 UTC000
Jan 192026-01-19 00:00:00 UTC2026-01-26 00:00:00 UTC000
Jan 262026-01-26 00:00:00 UTC2026-02-02 00:00:00 UTC000
Feb 22026-02-02 00:00:00 UTC2026-02-09 00:00:00 UTC000
Feb 92026-02-09 00:00:00 UTC2026-02-16 00:00:00 UTC211

What Hacker News says

2 sources
danbitengo·Feb 10, 2026
Try it now: https://localwrite-demo.fly.dev Open in two tabs, join a room, start typing. That's the pitch. SyncKit is an offline-first sync engine. Rust core compiled to WASM, TypeScript SDK, works in any framework. What's new since v0.1.0 (which some of you saw here 75 days ago): - Live demo (LocalWrite) - collaborative editor you can try right now - Rich text CRDTs (Fugue + Peritext) not just LWW anymore - Live cursors and presence - React/Vue/Svelte adapters - Multi-language servers (TypeScript, Python, Go, C#) - 2,100+ tests, formally verified with TLA+ The demo shows character-level sync, slash commands, a community Word Wall, and offline editing. Disconnect your network, keep typing, reconnect - it merges automatically. Known limitations: - SDK undo/redo not yet wired into the demo editor (browser native works) - No E2E encryption y
Read the rest
et Security note on the demo: LocalWrite is a public collaborative space with no authentication. Rooms are accessible to anyone with the URL and so don't share sensitive or personal data. The server sees all content in plaintext. Rate limiting and input validation are in place, but there's no content moderation or identity verification. Treat it like a public whiteboard. GitHub: https://github.com/Dancode-188/synckit npm: @synckit-js/sdk Happy to answer questions about the CRDT implementation, architecture, or anything else.
In Show HN: SyncKit – Open two browser tabs and watch CRDTs sync in real-time

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