A new Chrome extension called Seritor is aiming to solve a problem that anyone who uses multiple AI assistants knows too well: bookmarking specific exchanges without losing context. The tool launched this week with cross-platform support for Claude, ChatGPT, Gemini, and Grokโ€”all from a single interface. Unlike browser bookmarks or screenshot workflows, Seritor places a flag on every individual message in your conversations. Click that flag and it automatically captures the adjacent prompt or reply, giving you the full exchange rather than a fragmented clip. Version 1.0.1 dropped May 29, 2026, from developer Quite Good (based at 66 Paul Street in London), and comes in at just 119KiBโ€”lightweight enough to not tank your browser performance. Your saved bookmarks land in a dedicated library where you can edit them down to the useful bits, tag them with labels, and search across everything. The extension handles code blocks properly too, keeping fences intact rather than mangling indentation like copy-paste tends to do. Export options cover Markdown, HTML, JSON, and PDF formats for those who want to port their saved prompts into other workflows. Privacy-conscious users will appreciate that Seritor keeps everything localโ€”stored in your browser with no accounts required and no cloud sync. The developer explicitly states data isn't being sold or used for unrelated purposes, though there's optional anonymous error reporting available (disabled by default). This is the right approach: if you're saving prompts containing API keys, proprietary code, or sensitive project details, you don't want that hitting someone else's servers. The pricing model is straightforward: install free, use up to 10 bookmarks without paying. Beyond that, it's a one-time $29 purchase for full accessโ€”no subscription required. That's refreshing compared to the SaaS-style recurring fees plaguing most productivity tools lately. The developer has also identified as a trader under EU law and committed to compliance, which matters if you're operating in regulated industries. Keyboard shortcuts streamline the workflow too: Cmd+Shift+B bookmarks whatever message you're on, while arrow keys let you navigate between saved items without touching your mouse. If you've been manually scrolling through ChatGPT history trying to find that one clever prompt chain, this is the kind of tool that makes you wonder how you lived without it.

Key Takeaways

  • Seritor v1.0.1 supports Claude, ChatGPT, Gemini, and Grok from a single Chrome extension
  • Bookmarks capture full exchange context (prompt + reply) rather than isolated fragments
  • Local-only storage with no accounts or cloud sync respects user privacy
  • Export to Markdown, HTML, JSON, PDF with proper code block formatting
  • Free tier allows 10 bookmarks; $29 one-time unlocks unlimited access

The Bottom Line

This is exactly the kind of utility that should exist but somehow hasn't until nowโ€”full context capture across AI platforms without vendor lock-in. At $29, it's a no-brainer for developers and power users who bounce between models and need their best prompts portable. Watch for competitors to follow suit; Seritor just set the baseline.