TrackObject – Drag-and-drop computer vision object tracking

Hey HN! We're the creators of Sieve API (https://www.sievedata.com) and we recently built this fun site that folks can play around with. Frontend is built with NextJS + Tailwind UI and backend is our API. It uses ffmpeg in the browser to transcode an uploaded video, chop it to 5 seconds, and then send it to our API endpoint which detects and tracks objects in the video. You can then "select" any object and track it over the video. We thought it'd be a fun thing for the community to play around with while also showing the power of video object tracking!

Visit trackobject.xyz ↗Alternatives

In plain words

TrackObject is a web-based tool for detecting and tracking objects in video. Users upload a video, which is processed in the browser and sent to the Sieve API backend for analysis. The interface lets users select any object and follow its movement throughout the clip. Built with NextJS and Tailwind UI, it demonstrates video object tracking capabilities for developers and anyone interested in computer vision applications.

written from the facts on this page · September 2026

More dev tools this month

the category →

Dograh▲592
The open source VAPI alternative
Dev tools · 25d ago · dograh.com
Meridian▲530
Don't let your work go unnoticed. Get promoted!
Dev tools · 20d ago · meridiona.com
x1▲516
Lovable for iPhone apps go from idea to App Store
Dev tools · 11d ago · x1.new
The GTM Co-Founder▲402
Open-source GTM skills for technical founders
Dev tools · 29d ago · gtmcofounder.com
Open-Source eInk Bike Computer▲387
OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 1d ago · opentrailpaper.com
Nuphos▲380
The AI-Native DevOps Workspace.
Dev tools · 24d ago · nuphos.ai

Launched alongside, July 2022

the whole month →

Locofy.ai▲720
Turn Figma designs into code
Dev tools · 2022 · locofy.ai
PO
Porting OpenBSD Pledge() to Linux▲571
Life & fun · 2022 · justine.lol
PO
PocketBase – Open Source realtime backend in one file▲563
Dev tools · 2022 · github.com
ruttl▲552
Collect visual feedback directly on websites, PDFs & images
Dev tools · 2022
PP
Pipes puzzle (a.k.a. Net) on a hexagonal grid▲537
Hello, HN - I wanted to share this puzzle game I made during my vacation. I'm rather fond of the pipes puzzle where your goal is to restore a scrambled network of connections by rotating tiles. It's usually played on a grid of squares and this all started when I decided to make a programmatic solver for that kind of puzzle. Then I realized that with some minor changes the solver could generate new puzzle instances. I thought about what kind of puzzle to make and someone suggested a hexagonal grid. Adapting the generator wasn't too hard but then I had to create a way to play this variant. So…
Life & fun · 2022 · hexapipes.vercel.app
PD
Parsnip – Duolingo for Cooking▲536
We're building Parsnip to create a "tech tree" of cooking skills that allows anyone to level up on the building blocks of cooking knowledge while tracking their progress over time. It took us a few iterations to figure out the right product; here's the story of our latest pivot: [https://parsnip.substack.com/p/a-new-hope] The goal is to create a personalized way to learn any recipe on the Internet, then use this as a springboard to help home cooks of all levels solve the problem of repeated meal planning in a 10x better way:…
Work · 2022 · parsnip.ai