SyncKit
The most recommended of 4 sync engines
Offline-first, self-hostable sync engine with a Rust/WASM core and TypeScript SDK that works in any framework; its common caveat is being client-server, not P2P.
Offline-first, self-hostable sync engine with a Rust/WASM core and TypeScript SDK that works in any framework; its common caveat is being client-server, not P2P.
10 people gave an opinion
- recommend it
- 8
- criticize it
- 2
- approval share
- 80%
Recommended in 3 of 13 months
- November 2025: recommended
- December 2025: recommended
- January 2026: not recommended
- February 2026: recommended
- March 2026: not recommended
- April 2026: not recommended
- May 2026: not recommended
- June 2026: not recommended
- July 2026: not recommended
- August 2026: not recommended
- September 2026: not recommended
- October 2026: not recommended
- November 2026: not recommended (month in progress)
Why it doesn’t carry the badge
- 8 people recommend itNeeds 10 or more, not met.
- 4 recommenders for every criticNeeds 2 to 1 or better, met.
- Recommended in 3 of 13 monthsNeeds 4 or more, not met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Offline-first sync that works in any framework
“SyncKit is an offline-first sync engine. Rust core compiled to WASM, TypeScript SDK, works in any framework.”
Comment from 10 Feb 2026 in “Show HN: SyncKit – Open two browser tabs and watch CRDTs sync in real-time” “SyncKit is the middle ground: simple API, works offline-first, self-hostable.”
Comment from 27 Nov 2025 in “Show HN: SyncKit – Offline-first sync engine (Rust/WASM and TypeScript)” “gives you a pre-wired local-first database”
Comment from 19 Dec 2025 in “Show HN: SyncKit – TLA+ verified CRDT for local-first apps (zero unsafe Rust)”
What people warn about
Each mark is one comment
Heavy AI-assistance artifacts visible in code
“heavy use of AI assistance can be observed in all your public projects”
Comment from 27 Nov 2025 in “Show HN: SyncKit – Offline-first sync engine (Rust/WASM and TypeScript)” “there are still ennough obvious agent artifacts/byproducts in the code base”
Comment from 28 Nov 2025 in “Show HN: SyncKit – Offline-first sync engine (Rust/WASM and TypeScript)” Looks very similar to Automerge
“To me this looks very similar to Automerge.”
Comment from 27 Nov 2025 in “Show HN: SyncKit – Offline-first sync engine (Rust/WASM and TypeScript)”
Other sync engines people recommend
The three most recommended other sync engines, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| SyncKitThis page | 8 | 2 | 80% | 3 | — | — |
| Zero by Rocicorp | 7 | 2 | 78% | 4 | — | — |
| ElectricSQL | 5 | 1 | 83% | 4 | — | — |
| Jazz | 5 | 0 | 100% | 3 | — | — |
What people said
9 of the 12 comments that mention it, newest first. Each links to the original comment.
“SyncKit is an offline-first sync engine. Rust core compiled to WASM, TypeScript SDK, works in any framework.”
“gives you a pre-wired local-first database”
“there are still ennough obvious agent artifacts/byproducts in the code base”
“SyncKit might not be your best fit because: It's client-server (not P2P)”
“This would make a great backbone for a Obsidian Sync plugin.”
“To me this looks very similar to Automerge.”
“heavy use of AI assistance can be observed in all your public projects”
“This is very well done work and documentation.”
“SyncKit is the middle ground: simple API, works offline-first, self-hostable.”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.