GreptimeDB
Open-source database for large-scale time-series data
GreptimeDB launched on November 17, 2022 with 72 votes, #763 of 3,471 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 3 years on.
What it does
GreptimeDB is an open-source time-series database with a special focus on scalability, analytical capabilities and efficiency. It's designed to work on infrastructure of the cloud era, and benefit users from its elasticity and commodity storage.
The open-source observability database. Metrics, logs, and traces in one columnar engine on object storage, queried with SQL and PromQL.
A columnar engine with object storage as primary storage. Ingest through OpenTelemetry and Prometheus Remote Write, query observability data with SQL and metrics with PromQL. Ingest through OpenTelemetry, Prometheus Remote Write, Loki Push, and Elasticsearch Bulk. Query observability data with SQL and metrics with PromQL. Migrate ingestion one signal at a time without rebuilding your collectors. Agents are changing both sides of observability. Agentic applications emit high-cardinality telemetry. Investigation agents explore that same data in parallel — a different concurrency profile than a dashboard ever produced. Both need the same thing underneath: one place to write it and one place to…from greptime.com
Does a similar job
all alternatives →
GreptimeDB 2025 Roadmap2025 · greptime.com · ▲7An open-source, cloud-native, unified time series database for metrics, logs and events, supporting SQL/PromQL/Streaming. This Roadmap details GreptimeDB's major updates planned for 2025 and provides opportunities for community developers to participate and contribute.

Pushdata.io – Ultra simple time series data storage2018 · pushdata.io · ▲108
QuestDB – fast time series database, zero-GC Java2019 · questdb.io · ▲22QuestDB is the open-source time-series database for demanding workloads: ultra-low latency, high throughput, tiered storage, and fast SQL on open formats.

More dev tools this month
the category →
Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.
Dev tools · 6d ago · github.com

OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 29d ago · openbot.run
Talanoa▲346Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…
Dev tools · 26d ago · talanoa.email


Source: Product Hunt launch ↗
Launched alongside, November 2022
the whole month →



I made a thing! In 2014, I was holding a stack of iPhones and thought to myself: "Hey, if I had each phone display a playing card, I could click a button and they'd shuffle themselves" I pared that idea all the way down to this: trading cards made of e-ink displays. Right now, each card costs me about $20 each, but with only a bit more scale, I think I can get that down to $10. In doing this project, I learned how to design electronics and circuit boards. I learned Rust and wrote my first driver, I upped my CAD skills, 3D printed, and did my first resin casting. I generated the images on the…
Dev tools · 2022 · wyldcard.io

