OpenAI 2026 hackathon

GramGrab

Download any Instagram posts, reels, stories, highlights, etc. your account can view - including private content - and instantly turn music-backed stories into clean frames or silent videos.

Solo project by Arnab Chakraborty · 0 likes · 0 comments

Archive position — measured, not model output

0 likes on Devpost

2,264 of the 7,856 archived projects have more likes, and 5,592 share exactly 0 — so this project's #4,383 place in the like-ranked listing is a tie-break inside that group, not a ranking.

Projects (log scale)

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1k
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05,592
11,758
2285
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5–975
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Likes on Devpost. ▲ marks this project's group.

Show the figures
LikesProjectsShare of archive
05,59271.2%
11,75822.4%
22853.6%
3–41321.7%
5–9751.0%
10+140.2%
Devpost like counts for all 7,856 archived projects, captured when this archive was built.

Executive Summary

What the company appears to be

GramGrab is a self-reported browser extension built by one developer (Arnab Chakraborty) that allows users to download Instagram media — including private content from accounts they follow — using their authenticated browser session. It is described as a local-first tool with no backend dependencies, designed for non-technical users and built with React, TypeScript, and Manifest V3.

What changed

The author states the project evolved beyond a basic URL-downloader into a more feature-rich tool supporting batch downloads, previews, silent video exports, and a dedicated workspace. It also includes reliability improvements such as strict schema validation of Instagram API responses and automated testing using sanitized fixtures.

The single most important open question

Is there any evidence of user adoption or commercial traction beyond the author’s own development? The description contains no data on downloads, users, monetization, or market interest.

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What The Product Actually Is

  • The description states that GramGrab is a Manifest V3 browser extension.
  • It is built with React and TypeScript, and supports both Chromium and Firefox browsers.
  • It allows users to download Instagram media, including content from private accounts they follow, by leveraging the authenticated browser session.
  • It does not require users to send cookies or URLs to a third-party service; it is described as local-first.
  • The extension handles Instagram’s undocumented APIs, using Effect Schemas for decoding responses and sanitized fixtures for testing.
  • It supports features such as:
    • Batch downloads
    • Previews
    • Video-frame exports
    • Silent video exports
    • Local history
    • Dedicated workspace for collections

Inference The product is a browser extension, not a web app or SaaS offering. It is built for personal use and not intended for enterprise or commercial distribution.

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Positioning & Claim Evolution

  • The author states that GramGrab evolved from a basic “paste a URL and download” utility into a more robust tool.
  • It is positioned as a user-friendly alternative to public tools, which are said to be unreliable or not targeted at non-tech users.
  • It is also presented as an improvement over tools like instaloader, which are described as tech-focused and lacking quality-of-life features.
  • The author emphasizes that GramGrab is local-first and does not require backend services or analytics.

Inference The positioning has shifted from a simple tool to one focused on usability, reliability, and privacy. However, the description does not indicate any commercial positioning or market strategy beyond personal use.

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Target Customer & ICP

  • The author states that the tool is for people who download Instagram content, including friends and others.
  • It is described as being targeted at non-tech users.
  • It supports downloading from private accounts if the user is following them.
  • There is no mention of specific customer segments, personas, or use cases beyond personal content consumption.

Inference The ICP appears to be individual Instagram users, particularly those who want to download media for personal use, not businesses or creators. No evidence of a commercial or B2B target.

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Business Model & Pricing Evidence

  • The description does not mention any pricing, monetization, or business model.
  • It is described as a self-built tool with no backend, implying no recurring revenue or paid features.
  • The author states it is bootstrapped and built for personal use.

Inference No evidence of a business model or pricing structure. The project appears to be a hobbyist or developer-side project, not a commercial product.

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Technical & Delivery Signals

  • GramGrab is built as a Manifest V3 browser extension, using React and TypeScript.
  • It supports both Chromium and Firefox browsers by generating browser-specific manifests while sharing the rest of the codebase.
  • The tool uses Effect Schemas to decode Instagram API responses, with automated tests using sanitized fixtures.
  • It is described as reliable, with a design that fails loudly rather than silently when Instagram changes its API.
  • The author used AI coding tools (Codex) for development and documentation.

Inference The technical approach shows attention to reliability, privacy, and cross-browser compatibility. However, no evidence of production deployment or scalability beyond the single developer’s use case.

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Traction & Maturity Signals

  • The project is described as a self-built tool by one person, with no mention of users, downloads, or adoption.
  • It was submitted to the OpenAI 2026 hackathon, indicating it was built in a short time frame.
  • The author states that the tool has evolved over time and includes reliability improvements.
  • No evidence of revenue, customers, or usage metrics.

Inference There is no evidence of traction or commercial maturity. It remains a personal project with no external validation or user base.

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Competitive Context

  • The author mentions that public tools and websites are unreliable for downloading Instagram media.
  • It is presented as an alternative to instaloader, which is described as tech-focused and lacking usability features.
  • No other competitors are named or described in the write-up.

Inference The competitive landscape is not clearly defined. The author does not reference existing browser extensions, SaaS tools, or platforms that offer similar functionality.

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Key Risks & Red Flags

  • No commercial traction or user base: The project is self-reported and lacks any evidence of adoption.
  • Single developer: The entire project is built by one person (Arnab Chakraborty), raising questions about scalability or long-term maintenance.
  • Unverified API usage: The tool relies on undocumented Instagram APIs, which may change without notice, potentially breaking the extension.
  • No monetization strategy: No pricing, subscriptions, or revenue model is described.
  • Hackathon project: Submitted to a hackathon, suggesting it was built quickly and not intended for long-term commercial use.

Inference The project lacks commercial viability or traction. It is likely a prototype or personal tool with no clear path to monetization or growth.

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Diligence Questions To Ask The Founders

  1. What is the actual user base or adoption rate of GramGrab?
  2. Are there any plans for monetization or commercial use beyond personal development?
  3. How does the extension handle Instagram API changes, and what is the process for updating it?
  4. Has the tool been tested with real users outside of the developer’s own use case?
  5. What are the long-term maintenance plans for the project, given that it is built by a single person?

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Investment/Partnership Verdict

  • Not evidenced — The description contains no evidence of revenue, customers, or commercial traction.
  • The project is described as a self-built browser extension, likely developed in a hackathon setting, with no indication of market demand or business model.
  • It is not a commercial product and does not appear to be intended for investment or partnership.

Inference There is no evidence to support an investment or partnership opportunity. The project appears to be a personal development effort without commercial viability or traction.

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Source

Submitted to the OpenAI 2026 hackathon on Devpost. Project home on DevPost.

The analysis above was generated by a language model from the project's own one-line description. It is not independent research and contains no verified traction, revenue or customer data.