Streamdal

In plain words

Streamdal is an open-source data observability platform that helps teams detect and resolve data quality issues in real-time. It provides visibility into data flowing through systems and enables immediate action when problems occur. The tool is designed for developers and data engineers who need to monitor data quality across their infrastructure and respond quickly to incidents.

written from the facts on this page · September 2026

From the sources

Data observability that drives action. Detect and resolve data quality incidents faster by viewing data flowing through your systems and acting on them in real-time with Streamdal, the open-source data observability tool.

Embed privacy controls in your application code to detect PII as it enters and leaves your systems, preventing it from reaching unintended databases, data streams, or pipelines. Build trust by eliminating the unknown.

• 
  Streamdal – an open-source tail -f for your data2023 · github.com · ▲148

  Hey there! This is Dan and Ustin (@uzarubin), and we want to share something cool we've been working on for the past year - an open-source `tail -f` for your data, with a UI. We call it "Streamdal" which is a word salad for streaming systems (because we love them) and DAL or data access layer (because we’re nerds). Here's the repo: https://github.com/streamdal/streamdal Here's the site: https://streamdal.com And here's a live demo: https://demo.streamdal.com (github repo has an explanation of the demo) — — — THE PROBLEM We built this because the…

• 
  Open source data discovery and observability platform2022 · opendatadiscovery.org · ▲122

  With the OpenDataDiscovery Platform, you can collect metadata from any data source, regardless of format or location. This powerful platform provides data discovery, observability, and trust for your entire data pipeline.

• 
  OpenDataDiscovery2022 · opendatadiscovery.org · ▲105

  First open-source data discovery and observability platform

• 
  AI Observability by OpenObserveAug 2026 · openobserve.ai · ▲317

  OpenTelemetry-native observability for agents and LLMs

• 
  Edge Delta2024 · edgedelta.com · ▲273

  AI-driven observability for $0.20 per GB

• 
  CueObserve2021 · github.com · ▲73

  Open-source Anomaly detection on SQL data

Questions this answers

• alternative to open source data discovery and observability platform

• 
  /dev/null▲482

  a social network for devs

  Dev tools · 2d ago · dev-null.sh

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 25d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 22d ago · openbot.run

• 
  Talanoa▲343

  Hi 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 · 20d ago · talanoa.email

• 
  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

• 
  AI Content Genie▲1,071

  AI autopilot for content creation & marketing

  AI · 2023 · typeface.ai

• 
  Nudge 2.0▲1,051

  In-app experiences to activate, retain, & understand users

  Growth · 2023 · nudgenow.com

• 
  Cal.ai Email Assistant▲918

  World's first open source AI scheduling assistant

  AI · 2023 · cal.com

• 
  Design Studio by Tiledesk▲867

  Unlock AI magic for elevated customer engagement, fast

  AI · 2023 · tiledesk.com

• 
  TalkNotes▲854

  Turn your thoughts into actionable notes, fast

  AI · 2023 · talknotes.io

• 
  OpenAPI DevTools – Chrome extension that generates an API spec▲811

  Effortlessly discover API behaviour with a Chrome extension that automatically generates OpenAPI specifications in real time for any app or website.

  Dev tools · 2023 · github.com