UnisonDB – B+Tree DB with sub-second replication to 100+ nodes
Hi everyone — I’m the developer of UnisonDB, an open-source log-native database built in Go for distributed and edge-scale systems. UnisonDB rethinks the boundary between databases and streaming systems. Instead of treating the Write-Ahead Log (WAL) as a recovery mechanism, it treats the log itself as the database. Every write is immediately durable, queryable, and replicable — without Kafka, CDC pipelines, or changefeed daemons. UnisonDB unifies persistence and streaming in one system. It’s designed for real-time, event-driven, and edge-first workloads where data needs to move as fast as…
UnisonDB – B+Tree DB with sub-second replication to 100+ nodes launched on November 15, 2025 with 15 votes, #727 of 9,796 launches that month and more than 75% of that year's launches.
In plain words
UnisonDB is a B+Tree database designed for teams needing rapid data synchronization across distributed systems. It replicates data to over 100 nodes in under a second, making it suitable for applications requiring real-time consistency at scale. The database is available as open source on GitHub and targets developers building distributed systems who need fast, reliable data propagation without complex setup.
written from the facts on this page · September 2026
From the sources
A streaming multimodal database for Edge AI, and Edge Computing. - ankur-anand/unisondb
In the maker’s words, at launch
Hi everyone — I’m the developer of UnisonDB, an open-source log-native database built in Go for distributed and edge-scale systems. UnisonDB rethinks the boundary between databases and streaming systems. Instead of treating the Write-Ahead Log (WAL) as a recovery mechanism, it treats the log itself as the database.…
Does a similar job
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UnisonDB – Log-native KV database that replicates like a message busNov 2025 · unisondb.io · ▲17Hi HN, For the past few months, I’ve been building UnisonDB — a log-native database where the Write-Ahead Log (WAL) is the database, not just a recovery mechanism. I started this because every time I needed data to flow — from core to edge, or between datacenters — I ended up gluing together a KV database + CDC + Kafka. It worked, but it always felt like overkill: too many moving parts for even small workloads, and too little determinism. What is it? UnisonDB unifies storage and streaming into a single log-based core. Every write is: • Durable (appended to the WAL), • Ordered (globally…
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Hello HN, I am Sai Srirampur, one of the Co-founders of PeerDB. (https://github.com/PeerDB-io/peerdb). We spent the past 7 months building a solid experience to replicate data from Postgres to data warehouses. Now we're expanding to queues. PeerDB Streams provides a simple and native way to replicate changes as they happen in Postgres to Queues (Kafka, Redpanda, Google PubSub, etc). We use Postgres logical decoding to enable Change Data Capture (CDC). Blog post here: https://blog.peerdb.io/peerdb-streams-simple-native-postgres.... 10-min quickstart here:…

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