Retrackt

Retrackt is a streamlit web application that allows users to discover if their photographs have been reposted on Reddit.

Current focus

Retrackt allows users to:

• Upload an image
• Scan a specified Reddit subreddit for similar images
• Display the top 3 most similar images

The main focus of this project is to help users trace non-consensual reposting of non-intimate images of themselves on Reddit.

Demo

Watch the demo

Limitations

• Reddit API allows us to scan the most recent/latest 1000 posts (rate limit of 1000)
• This project is restricted to Reddit as of now, with plans to expand to other social media platforms
• We request you to upload an image instead of pasting an Instagram URL of a (public) post

Roadmap

In Progress

• Research Report (Due Sep 30)
• Expand similarity matching display and make the project accessible (or live) via https://retrackt.streamlit.app/ (Due Sep 30)

Not Started

Phase 1 (Tracking/Discover Mechanism)

• Refactor Image Fetching Script (Due Oct 31 )
• Automate Daily Fetching (Due Oct 31)
• Build FASTAPI Service (Due Oct 31)
• Feedback (Round 1) (and further iteration) (Due Oct 2)

Phase 2 (Reporting Mechanism)

Contributors

Thank you to the following folks for contributing to Retrackt!

Technical Contributors:

John Sandall, Yash Srivastava, Praveen Selvaraj, Preethi Prakash,

Other contributors:

Lewis Westbury, Matt Stempeck, Hannah O'Rourke, Six Silberman, Yung-Hsuan Wu, Igor Shilov

This is an open source project, to contribute please fill out this form - https://cryptpad.fr/form/#/2/form/view/B07+Irs-BJf3yJYn96hI3Gr4LtaEmuym9o5C18goiYE/

Have user feedback? Get in touch - jyotsna.iy@gmail.com

Reading/Resource List

1. https://www.washingtonpost.com/investigations/2025/09/08/meta-research-child-safety-virtual-reality/
2. https://www.404media.co/reddit-issuing-formal-legal-demands-against-researchers-who-conducted-secret-ai-experiment-on-users/
3. https://networkcultures.org/thedigitalgutmensch/2025/03/17/considerations-for-bystanders-of-online-harm/
4. https://coppelganger.lav.io/
5. https://pushshift.io/signup
6. https://www.parse.bot/
7. https://stopncii.org/?lang=en-gb
8. https://paglen.studio/2020/04/29/imagenet-roulette/
9. https://opensourcesecurity.io/2025/08-oss-one-person/

(Research report coming soon!)