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Jack Cooper's avatar

Jack Cooper

@JackCooper
Wuhan, Hubei, People's Republic of China

What I'm building

Small, focused web tools I build and run solo — free to use, no signup, with an optional one-time upgrade instead of subscriptions. Mostly in the travel and creative space.

  • Timeline Visualizer
    2026 — present

    Turn your Google Maps Timeline into an animated travel video, free in your browser

Articles

Guides, fixes, and comparisons from the tools I build.

  • How to use Timeline Visualizer: from Timeline.json to a shareable travel video
  • Timeline.json is empty? Every reason and the fix

Recent activity

  • Commented on15 days after launching to zero audience: $0, 1 follower, 0 stars. The full numbers.2026-08-30
  • Commented onAnyone else had an AI coding agent (Claude Code, Codex, etc.) silently die mid-task when your connection dropped?2026-08-25
  • Commented onI built an offline AI assistant that can actually use your computer2026-08-25
  • Commented on100K app downloads by taking a proven app idea to a different market2026-08-25

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