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Jewelry & Gems
Look up density values for gold, silver, platinum, and common alloys.
Open Metal DensJewelry & Gems
Reference guide for opal types: Black, White, Boulder, Fire, and play-of-color grading.
Open OpalYour specific task is look up density values for gold, silver, platinum, and common alloys. Open the page, drop your input, get the result — typically under a second.
Your goal is reference guide for opal types: black, white, boulder, fire, and play-of-color grading. Same approach: paste in, get the result, move on. No account, no upload.
Both tools live in the same category, so the choice depends on the exact subtask. Metal Dens focuses on look up density values for gold, silver, platinum, and common alloys; Opal focuses on reference guide for opal types: black, white, boulder, fire, and play-of-color grading. Try whichever description matches your goal more closely — they're both free.
Yes — both tools are free for unlimited personal use. The Pro plan unlocks higher limits and batch features but the core functionality stays free forever.
Absolutely. Many users chain multiple tools together — process a file with one, then feed the result into another. Nothing is uploaded, so chaining is essentially instant.
No. Both Metal Dens and Opal work without signup. We only ask for an email if you decide to subscribe to a paid plan.