Dev tools · alternatives · 2026
24 alternatives to SQLFlow - Easy Stream Processing
A flink alternative powered by DuckDB
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
Hello Everyone! We built SQLFlow as a lightweight stream processing engine. We leverage DuckDB as the stream processing engine, which gives SQLFlow the ability to process 10's of thousands of messages a second using ~250MiB of memory! DuckDB also supports a rich ecosystem of sinks and connectors! https://sql-flow.com/docs/category/tutorials/ https://github.com/turbolytics/sql-flow We were tired of running JVM's for simple stream processing, and also of bespoke one off stream processors I would love your feedback, criticisms and/or…
Dec 2025 · sql-flow.com · its alternatives →
- 2
I'm a couple years late to the party but DuckDB is blowing my mind. I couldn't find an good embedded DuckDB stream processing solution so I hacked my own, calling it SQLFlow: https://github.com/turbolytics/sql-flow SQLFlow enables writing stream transformations in pure sql, executed using DuckDB. The goal was to create a lightweight, performant stream processing engine using pure SQL transformations, DuckDB didn't disappoint! I'd love your feedback, feature requests, impressions, or just comments. I'd love to turn this into a stable, usable project that people are…
2023 · github.com · its alternatives →
- 3
A Python stream processing engine modeled after Yahoo! Pipes - nerevu/riko
2016 · github.com · its alternatives →
- 4
Flowdash 2.0▲216Turn any database query into a business process
2021 · flowdash.com · its alternatives →
- 5DU
I built Duck-UI, a web-based SQL editor that runs DuckDB entirely in your browser via WebAssembly. No backend required. The Problem: Every time I needed to query csv, parquet, or even to play with SQL, I had to either: (a) spin up a Jupyter notebook (b) use the CLI (c) upload to a hosted service. Friction at every step (TOO MUCH to load a csv or even to test some sql (study)... The Solution: DuckDB's WASM runtime lets us run SQL analysis client-side. Load CSV/JSON/Parquet files from disk or URL, write SQL, get results instantly. Data stays on your machine. What It Does: SQL editor…
2025 · demo.duckui.com · its alternatives →
- 6
Hey HN, Arroyo is a modern, open-source stream processing engine, that lets anyone write complex queries on event streams just by writing SQL—windowing, aggregating, and joining events with sub-second latency. Today data processing typically happens in batch data warehouses like BigQuery and Snowflake despite the fact that most of the data is coming in as streams. Data teams have to build complex orchestration systems to handle late-arriving data and job failures while trying to minimize latency. Stream processing offers an alternative approach, where the query is compiled into a streaming…
2023 · github.com · its alternatives →
- 7
TableFlow▲306Open-source CSV importer, alternative to Flatfile
2023 · tableflow.com · its alternatives →
- 8
Estuary Flow▲225Connect your data, where you want it, in milliseconds
2023 · estuary.dev · its alternatives →
- 9
- 10
TABLUM.IO▲159Turn CSV, XML & JSON into a live analysis-ready SQL database
2023 · tablum.io · its alternatives →
- 11
Get and manipulate data with a visual programming interface.
2017 · pipes.digital · its alternatives →
- 12
DuckDB for streaming data. Contribute to turbolytics/sql-flow development by creating an account on GitHub.
2024 · github.com · its alternatives →
- 13RT
We are working on a product which makes stream processing easy for data analysts and data scientists. It’s a higher level alternative to Flink, Kafka Streams and Spark Streams. As well as making stream processing simpler, we also felt that lots of people were building these AWS stream processing platforms based on Kafka and something like Flink so wanted to offer this as a service. We would welcome any input on the space or approach: Home page: http://Timeflow.systems Demo: https://youtu.be/fGfgBaHXOkE
2020 · its alternatives →
- 14
WhatTheDuck is an in-browser sql tool to analyze csv files that uses duckdb-wasm under the hood. Please provide feedback/issues/pull requests.
2024 · github.com · its alternatives →
- 15
Distributed Stream and Batch Processing. Contribute to hazelcast/hazelcast-jet development by creating an account on GitHub.
2020 · github.com · its alternatives →
- 16
SQL Polyglot▲53Try running a query anywhere from PostgreSQL to DuckDB without leaving your browser.
2023 · codapi.org · its alternatives →
- 17
Free browser-based SQL editor powered by DuckDB. Query and visualize CSV, JSON, Parquet and Arrow files locally or from remote URLs. No installation required.
2024 · sql-workbench.com · its alternatives →
- 18
Steampipe▲69Open source SQL interface to your favorite cloud APIs🧑💻
2022 · steampipe.io · its alternatives →
- 19
Instantly query your cloud, code, logs & more with SQL. Build on thousands of open-source benchmarks & dashboards for security & insights.
2021 · steampipe.io · its alternatives →
- 20
tl;dr we built an embeddable stream processing engine in Rust using apache DataFusion, check us out at https://github.com/probably-nothing-labs/denormalized Hey HN, We’d like to showcase a very early version of our embeddable stream processing engine called Denormalized. The rise of DuckDB has abundantly made it clear that even for many workloads of Terabyte scale, a single node system outshines the distributed query engines of previous generation such as Spark, Snowflake etc in terms of both performance and cost. Now a lot of workloads DuckDB is used for were normally…
2024 · github.com · its alternatives →
- 21
- 22CQ
Import CSVs, write SQL, and instantly share it with anyone. Runs 100% in-browser, so you're in control of your data.
2022 · csvfiddle.io · its alternatives →
- 23
A SQL spreadsheet desktop app that queries and visualizes CSV files using SQL.
2021 · superintendent.app · its alternatives →
- 24
Hello everyone, I’ve been building [Pipeflow-php](https://github.com/marcosiino/pipeflow-php), a PHP pipeline engine to automate anything — from content generation to backend and business logic workflows — using core modular stages and custom implemented stages (that can do anything), with the key power of using an easy to reason and read XML to define the pipeline logic, which every actor in a company, even non developers, can understand, maintain and edit. It’s a *headless engine*: no UI is included, but it's designed to be easily wired into any backend interface (e.g.…
Nov 2025 · github.com · its alternatives →
Also compare
- DuckDB for Kafka Stream Processing alternatives
- SQLFlow: SQL Stream Processing Using DuckDB alternatives
- Riko – A Python stream processing engine modeled after Yahoo! Pipes alternatives
- Flowdash 2.0 alternatives
- Duck-UI – Browser-Based SQL IDE for DuckDB alternatives
- Arroyo – Write SQL on streaming data alternatives
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 →