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Samestate

Preview your site on every device, synced in one click

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Click once. EveTest responsive layouts without resizing one window at a time. Samestate shows your site on iPhone, Android, iPad and desktop side by side. Click once and every device follows, even when layouts differ. Then it flags what breaks. Free and open source.ry device follows to the same state, even when the layouts differ.

PH · launched Nov 14, 2026 · 6 upvotes (top 4%) · 0 views

Niche: distraction and screen time blockers · 257 launches, 30 in the last 7 days ▲ +7% · Explore this niche →

Category and tags

  • Horizontal
  • Dev tools
  • Developer
  • Not AI
  • Commercial product
  • Design Tools
  • Productivity
  • GitHub
  • Tech

Visit website ↗ Source listing ↗

Could you build this?

Yes Synchronized multi-viewport previews and basic layout-break detection can be built with headless browser automation and iframes; it is mostly UI and orchestration.

Competitors

Other products that read as similar to this one : 127 launches clear the similarity bar, closest 8 shown.

Attention rank: #3 of 128 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 237 days after the earliest competitor.

  • Duo Preview · ph · 2026-11-06 · 1 upvotes · similarity 0.45
  • Adjusi · ph · 2026-11-09 · 1 upvotes · similarity 0.45
  • Songware · ph · 2026-09-22 · 2 upvotes · similarity 0.43
  • SiteTo.App · ph · 2026-11-14 · 3 upvotes · similarity 0.43
  • Responsive Web Design Perth: · ph · 2026-10-26 · 1 upvotes · similarity 0.42
  • Unolink · ph · 2026-11-10 · 2 upvotes · similarity 0.41
  • Responsivelyonline · ph · 2026-10-22 · 2 upvotes · similarity 0.41
  • crossmatch · github · 2026-09-11 · 35 upvotes · similarity 0.39

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.