URL Encoder / Decoder
PublicEncode or decode URL components safely.
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ZeroAuthority / tools / utilities
Encoders, validators, converters and PC diagnostics.
Encode or decode URL components safely.
Identify and compare common hash representations.
Validate and format structured data.
Decode JWT headers and claims without trusting them.
Test regular expressions against sample input.
Explain cron schedules in plain language.
Convert Unix and ISO timestamps across time zones.
Convert text between common transport encodings.
Upload a Windows battery report and get every field explained, plus wear, trend, and charging advice.
Run a small, readable scan script on your Windows PC or laptop and get your specs explained, bottlenecks found, and upgrade advice. Free with an account.
Paste an error code, blue-screen stop code or installer number and get a plain-English meaning and fixes.
Check your processor, memory, TPM, Secure Boot and more against Windows 11, with what to fix.
Find out what a Task Manager process is and whether it is the real one or a fake.
Pick a problem and get safe, explained repair commands you can read before running.
Look up Event Viewer IDs like 4625, 7045 and 41 with what to check next.
See what a file type is and whether it is commonly abused, including disguised double extensions.
Decode Device Manager IDs like VEN_10DE and DEV_2204 into the vendor, class and driver source.
Paste drive health output and get a clear verdict on whether your drive is failing.
Paste a crash or Event Viewer entry and get it translated into what happened and what to try.