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Rulerly
An online ruler that's actually calibrated to your screen
Most "online ruler" tools you'll find just guess at your screen's pixel density and hope for the best, and they're often extremely inaccurate. Rulerly fixes that with a 15-second calibration using any card in your wallet (they're all the same size), so what you see on screen is actually true to scale. In addition it features tracing tools, moving/resizing features, diagonal mode, and it works on any device.
Hey everyone, creator here. I built Rulerly because anytime I needed to make a convenient measure of something there was nothing out there that was accurate or had the features I need. That's why Rulerly has the calibration step instead of assuming the pixel density on your phone, so you can you actually trust the measurements you make. I also implemented some features that weren't available anywhere else, like the ability to trace, having the ability to move the ruler around or adjust the length, and angling it any direction. If you think you'll one day find this useful feel free to check it out and let me know what you think. Cheers.
About Rulerly on Product Hunt
“An online ruler that's actually calibrated to your screen”
Rulerly was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #131 on the daily leaderboard. Most "online ruler" tools you'll find just guess at your screen's pixel density and hope for the best, and they're often extremely inaccurate. Rulerly fixes that with a 15-second calibration using any card in your wallet (they're all the same size), so what you see on screen is actually true to scale. In addition it features tracing tools, moving/resizing features, diagonal mode, and it works on any device.
On the analytics side, Rulerly competes within Design Tools, Hardware and Accessories — topics that collectively have 278.2k followers on Product Hunt. The dashboard above tracks how Rulerly performed against the three products that launched closest to it on the same day.
Who hunted Rulerly?
Rulerly was hunted by Lotus. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Rulerly including community comment highlights and product details, visit the product overview.
Lotus