Dev tools · alternatives · 2026
24 alternatives to QuestDB – fast time series database, zero-GC Java
QuestDB is the open-source time-series database for demanding workloads: ultra-low latency, high throughput, tiered storage, and fast SQL on open formats.
QuestDB is a time series database built with Java that emphasizes speed and zero garbage collection performance. It's designed for developers and organizations that need to process and analyze large volumes of… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. QuestDB – fast time series database, zero-GC Java launched in 2019; newer entries below may have overtaken it.
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QuestDB▲194Fastest open source database for time-series and analytics
2020 · questdb.com · its alternatives →
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QuestDB live demo. Query three large datasets and more than 2 billion rows in milliseconds with SQL
2020 · try.questdb.io · its alternatives →
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GreptimeDB▲72Open-source database for large-scale time-series data
2022 · greptime.com · its alternatives →
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Hey there HN! We’re Joe and Stopa, and today we’re open sourcing InstantDB, a client-side database that makes it easy to build real-time and collaborative apps like Notion and Figma. Building modern apps these days involves a lot of schleps. For a basic CRUD app you need to spin up servers, wire up endpoints, integrate auth, add permissions, and then marshal data from the backend to the frontend and back again. If you want to deliver a buttery smooth user experience, you’ll need to add optimistic updates and rollbacks. We do these steps over and over for every feature we build, which can…
2024 · github.com · its alternatives →
- 5QW
2023 · play.questdb.io · its alternatives →
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SereneDBfree▲262Ultra-Fast Search & Analytics Database, Agentic AI ready
Sep 2026 · serenedb.com · its alternatives →
- 7EA
2019 · easydb.io · its alternatives →
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Metabase▲313Open source business intelligence - Installs in 5 minutes
2015 · metabase.com · its alternatives →
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A Go SQL query builder and struct mapper. Contribute to samonzeweb/godb development by creating an account on GitHub.
2016 · github.com · its alternatives →
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- 12TA
2020 · terminusdb.com · its alternatives →
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Hi HN! We're Evgeny and Arjun, and we’re building a better way to do analytics with Postgres. We love Postgres for its simplicity, power, and rich ecosystem. But engineers have to still get bogged down with heavyweight and expensive OLAP systems when connecting an analytics data stack. Postgres is amazing at OLTP queries, but not for OLAP queries (large data scans and aggregations). Even in this case, we’ve still heard from countless scaling startups that they still try to use only a read replica to run analytics workloads since they don’t want to deal with the data engineering complexity of…
2024 · github.com · its alternatives →
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One year ago I open-sourced my very first 'real' project and shared it here. I was a college student in my senior year and desperately looking for a job. At the time of sharing it i couldn't even afford a domain and naively let someone buy the one i had my eyes on lol. It's been a hell of a year with this blowing up, me moving to another country, and switching 2 jobs. In a year we somehow managed to hit 26k stars, grow a 1000+ person discord community, and support 37 languages. I couldn't be more grateful for the community that helped this grow, but now i don't know what direction to take…
2025 · drawdb.app · its alternatives →
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We just released our database, SpacetimeDB, on GitHub under the BSL 1.1 license. It converts to a free software license after a few years. The point of the database is that you upload application logic into the database as a WebAssembly stored procedure, so instead of clients connecting to a webserver they connect directly to the database. The database itself does authentication and you write your own authorization logic just like you would inside a webserver. We’ve developed our game, BitCraft (https://bitcraftonline.com) entirely in this way. All of the game state is stored and…
2023 · github.com · its alternatives →
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2020 · textdb.dev · its alternatives →
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An open source time-series SQL database powered by Postgres!
2019 · github.com · its alternatives →
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📈 A small, fast chart for time series, lines, areas, ohlc & bars - leeoniya/uPlot
2019 · github.com · its alternatives →
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I created a web page to compare different analytical databases (both self-managed and services, open-source and proprietary) on a realistic dataset. It contains 20+ databases, each with installation and data loading scripts. And they can be compared to each other on a set of 43 queries, by data load time or by storage size. There are switches to select different types of databases for comparison - for example, only MySQL compatible or PostgreSQL compatible. If you play with the switches, many interesting details will be uncovered. Full description:…
2022 · benchmark.clickhouse.com · its alternatives →
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SiriDB is a highly-scalable, robust and super fast time series database. Build from the ground up SiriDB uses a unique mechanism to operate without a global index and allows server resources to be added on the fly. SiriDB's unique query language includes dynamic grouping of time series for easy anal
2017 · github.com · its alternatives →
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2018 · pushdata.io · its alternatives →
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Warp 10▲58Collect, store, and analyze time series and geolocated data
2020 · warp10.io · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →