Domain Arrivals
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Featured in Domain Arrivals · 2026-08-07

WhatFormatIsThis: a private detective for mysterious data

whatformatisthis.com ↗ · Useful Tools · score 79.0
○Open: public page gives enough substance to understand the site $Paid: pricing, booking, ecommerce, subscription, or paid access is visible ADAds: visible ad load or ad-supported content ✦Pretty: notable design, copy, craft, or presentation ◆Pro: polished, finished-feeling, serious, or operationally mature ◇Niche: specific audience, workflow, or unusually focused use case ◉Human: personal, local, community, civic, handmade, or real-person signal !Suspicious: scammy, spammy, trust theater, finance fog, or credibility concern

A browser-based tool that identifies, validates, formats, and decodes developer data including JSON, JWTs, Base64, URLs, YAML, cron expressions, hashes, and certificates.

Why it surfaced

Its strongest trick is recursive inspection: a URL can contain Base64, which can contain JSON, which can contain a token, and the tool lays out those layers as an extraction pipeline. It also makes a clear privacy promise—the pasted payload stays in the browser rather than being uploaded.

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A File Musicians Can Argue With

August 7’s newborn domains include editable orchestral scores with up to 33 staves, 15 years of Valencia council interventions, a dementia-friendly frame with one optional button, and a memorial golf tournament whose winner wears the Meatball Jacket.

This is one of 1,000 discoveries in the 2026-08-07 Domain Arrivals issue.

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A free browser-based 3D tool for tracing a roof, placing solar panels, and seeing how shadows move across the array throughout the day and year.

 Rhymeprint Makes Rhyme Schemes Visible rhymeprint.com

A browser-based tool that maps rhymes by sound and syllable, analyzes pasted lyrics or tracks, and turns the result into an animated video or still.

 Rumble Draft Turns Fantasy Draft Order Into a Battle Royale rumbledraft.com

A free, no-signup tool simulates a wrestling-style rumble to determine a fantasy league's draft order.