API Tester
Test REST, GraphQL, and webhook endpoints with zero config.
Everything you need, nothing you don't
Essential dev utilities at your fingertips. No bloat, no distractions.
JSON Formatter
Beautify, minify, and validate JSON in milliseconds.
Regex Builder
Visual regex constructor with live matching preview.
Coming soonBase64 Encode
Encode and decode Base64, URL-safe, and hex strings.
JWT Debugger
Decode and verify JWTs with header and payload inspection.
Diff Checker
Side-by-side text and code comparison with syntax highlight.
Cron Parser
Validate cron expressions and see next run times.
Coming soonURL Parser
Parse, encode, and decode URLs with query string support.
Invoice Aging
Track unpaid invoices and see how overdue each one is.
Built for developers, by developers
Developer tools that just work
API testing, JSON formatting, regex builders, and 20+ essential utilities. Free, fast, and designed for the terminal generation.
Built for how you work
No account walls. No data collection. Just tools that respect your workflow.
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No signup required
Start using tools instantly. No account, no friction.
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Runs in your browser
Your data never leaves your machine. Privacy-first by design.
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Keyboard-first
Built for power users. Shortcuts for everything.
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