Debug
8 utilities · Inspect, format and troubleshoot live data.JSON Formatter{ }
Format, validate and minify JSON with a collapsible tree.Regex Tester.*
Test regular expressions live with match highlighting.JWT Decoderjwt
Decode JWT header, payload and signature locally.Cron Parsercron
Parse cron expressions and preview next run times.HTTP Status Codeshttp
Look up any HTTP status code and its meaning.Timestamp Convertertime
Convert Unix timestamps to readable dates and back.JSON Diffdiff
Compare two JSON documents and highlight differences.Log Toolslog
Filter, tail and slice log files instantly.Why use Debug utilities on debug.tools?
Every tool in this category executes entirely within your browser runtime using the Web Crypto API, Canvas API, or native JavaScript parsers. Whether you are working with proprietary enterprise data, sensitive keys, or private files, your inputs are never transmitted over the internet or logged to any server.
Frequently Asked Questions
Are the utilities in Debug free to use?
Yes, all 8 tools in the Debug category are 100% free with no account creation, subscriptions, or rate limits.
Do tools in Debug upload my files or data to a server?
No. Every calculation, format conversion, and media transformation executes strictly inside your local browser memory using client-side JavaScript and modern Web APIs.
Can I use these Debug tools offline?
Yes. Once the page is loaded in your browser, the tools operate with zero remote API dependencies and work completely offline.