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chmodtool.com
Stop googling what chmod 755 means
I kept googling "chmod 755 meaning" every few months because my brain refuses to store octal. So I built the thing I wanted: type a number, tick checkboxes, or paste -rwxr-xr-x — all three stay in sync, and you get the exact chmod command to copy. It also walks you through fixing the classic "permissions are too open" SSH/AWSpem key error (Windows icacls included). Free, no signup, no login wall. Just permissions, explained.
Top comment
Hey PH! 👋 This started as a personal itch: every time I set up an EC2 instance, SSH would yell "WARNING: UNPROTECTED PRIVATE KEY FILE" at me, and every time I'd end up on some 2012 forum thread trying to remember whether the fix was 400 or 600. So I built chmodtool. It's deliberately boring, in a good way: a calculator that converts between octal (755), checkboxes, and symbolic notation (-rwxr-xr-x) in real time, plus step-by-step fix pages for the SSH/AWS .pem permission errors — including the Windows icacls commands nobody ever writes down. A few things I learned along the way: 777 is the duct tape of Unix (it "works" until it really doesn't), and half of all permission problems are just people copy-pasting commands they don't trust. That's why every result comes with a plain-English explanation, not just a number. No signup, no paywall, works on mobile. Tell me which permission headache I should cover next — chown? umask? I'm listening.
About chmodtool.com on Product Hunt
“Stop googling what chmod 755 means”
chmodtool.com was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #139 on the daily leaderboard. I kept googling "chmod 755 meaning" every few months because my brain refuses to store octal. So I built the thing I wanted: type a number, tick checkboxes, or paste -rwxr-xr-x — all three stay in sync, and you get the exact chmod command to copy. It also walks you through fixing the classic "permissions are too open" SSH/AWSpem key error (Windows icacls included). Free, no signup, no login wall. Just permissions, explained.
On the analytics side, chmodtool.com competes within Linux, Web App and Developer Tools — topics that collectively have 648.5k followers on Product Hunt. The dashboard above tracks how chmodtool.com performed against the three products that launched closest to it on the same day.
Who hunted chmodtool.com?
chmodtool.com was hunted by Cooper. 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 chmodtool.com including community comment highlights and product details, visit the product overview.