OpenRepli

OpenRepli is a small Chrome extension aimed at one repetitive job: writing comments and replies on social networks. Instead of switching tabs to a chatbot, you click the OpenRepli icon in the reply box on LinkedIn, Twitter/X or Instagram and it produces a ready-to-edit comment based on the conversation in front of you.

The design philosophy is bare-bones and privacy-first. There is no signup and no account: you paste your own OpenAI API key into the extension and it calls the API directly from your browser. The developer's Chrome Web Store disclosure states that data is not sold to third parties and is not used for creditworthiness or unrelated purposes, which is a meaningful contrast to tools that route your social activity through their own servers.

OpenRepli is a niche, early-stage utility rather than a full social media suite. The store listing shows version 0.1.1 (updated April 2024), a footprint of roughly 24 KB, and a very small user base with no ratings yet. That makes it attractive for individuals who want a lightweight reply helper at no extra cost beyond their own API usage, but a poor fit for teams needing scheduling, analytics or multi-seat management. Note that this is an independent third-party extension and is not an official OpenAI product, even though it relies on the OpenAI API.