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Image: tabmerger.vercel.app · TabMerger: Tab chaos in. Order out. The TabMerger popup with tabs saved into groups.

Worked Proof shown

TabMerger, a five-year-old browser extension rewritten from scratch

The maker of a tab manager for Chrome, Firefox and Edge rewrote it with Claude Code, using separate agents and notes for the extension, website, database and payments.

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Credits

  • Reddit poster lbragile_dev Source ↗

Earliest dated source: 11 Oct 2026

How it was done

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Sources

From a short post by the maker, so the details are as they tell them.

  • Reddit: I rebuilt my 5-year-old browser extension with Claude Code. What worked, what didn'tForum threadreddit.com
    Reddit poster: lbragile_devPosted 11 Oct 2026

    If it disappears: archived copy of Reddit: I rebuilt my 5-year-old browser extension with Claude Code. What worked, what didn't (opens in a new tab)

  • The project: tabmerger.vercel.appBlog or write-uptabmerger.vercel.app

    Linked in the post.

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Prompt & Solder

An independent community project. Not affiliated with Anthropic.

What this is. Real projects where people used Claude to build, fix, port, revive or take apart something, from jailbroken Kindles to rebuilt DOS games, plus the times it went badly wrong. Every build links to where it was shared, and every source is listed here.

How far to trust it. We summarise what people reported and say what each build rests on: a full write-up with code, a short post, or a passing comment. We haven't tested them ourselves. Photos are shown from the original sources with credit. Only modify hardware you own, and back up first.

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