Zero
Sync engine that puts a queryable client cache in front of your own Postgres.
Compared on toolweight in:Convex alternatives
Related comparisons:Database engines
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Zero brand colours
Extracted from the artwork and ranked by how much of the mark each covers, not from a brand book, so treat them as observed rather than official.
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What Zero is
Zero is Rocicorp's general-purpose sync engine, the successor to Replicache. Your Postgres stays the source of truth; zero-cache replicates from it and serves ZQL queries to clients out of a local store, so reads are instant and writes go through custom mutators that run server-side in a real transaction. It brings no auth, storage or cron, it does one thing and leaves the rest of your stack alone.