{"@context":"https://schema.org","@type":"CollectionPage","name":"Developer Tools Directory","description":"Free developer tools for monitoring, code generation, debugging, and more.","url":"https://devtoolkit.dev/tools","hasPart":[{"@type":"SoftwareApplication","name":"ChangeMon","url":"https://changemon.pages.dev","description":"Free website change monitoring. Set up a URL to watch and get notified the moment content changes. Ideal for tracking competitor pricing, job postings, regulatory updates, and content revisions. Supports custom check intervals and email alerts.","applicationCategory":"DeveloperApplication","operatingSystem":"Web","offers":{"@type":"Offer","price":"0","priceCurrency":"USD"}},{"@type":"SoftwareApplication","name":"Landing Page Generator","url":"https://landingpagegen-5if.pages.dev","description":"Generate a complete SaaS landing page in seconds. Enter your product name, description, key features, and pricing — get a polished, responsive HTML page with 6 color scheme options. Zero dependencies, fully self-contained output you can deploy anywhere.","applicationCategory":"DeveloperApplication","operatingSystem":"Web","offers":{"@type":"Offer","price":"0","priceCurrency":"USD"}},{"@type":"SoftwareApplication","name":"CodeSnap","url":"https://code-snap.pages.dev","description":"Create beautiful, shareable code screenshots instantly. Supports 100+ programming languages with syntax highlighting, multiple editor themes, customizable backgrounds (gradients, solid colors), padding, and rounded corners. Export as PNG directly.","applicationCategory":"DeveloperApplication","operatingSystem":"Web","offers":{"@type":"Offer","price":"0","priceCurrency":"USD"}},{"@type":"SoftwareApplication","name":"Regex Tester","url":"https://regex-tester-b9x.pages.dev","description":"Free online regex tester with real-time match highlighting, find-and-replace, and 18+ common pattern library. Test, Replace, and Patterns tabs. 100% client-side — no data leaves your browser.","applicationCategory":"DeveloperApplication","operatingSystem":"Web","offers":{"@type":"Offer","price":"0","priceCurrency":"USD"}},{"@type":"SoftwareApplication","name":"JWT Decoder","url":"https://jwt-decoder.pages.dev","description":"Decode, inspect, and verify JSON Web Tokens right in your browser. Paste any JWT to see the header, payload, and signature broken down clearly. All processing happens client-side — your tokens never leave your browser. Supports HS256 and RS256 algorithms.","applicationCategory":"DeveloperApplication","operatingSystem":"Web","offers":{"@type":"Offer","price":"0","priceCurrency":"USD"}},{"@type":"SoftwareApplication","name":"Cron Expression Generator","url":"https://cron-generator-4nm.pages.dev","description":"Visual cron expression builder with point-and-click dropdowns, instant human-readable descriptions, next-run preview, and 13+ presets. Parse existing crontab entries to understand what they mean. 100% client-side, no signup.","applicationCategory":"DeveloperApplication","operatingSystem":"Web","offers":{"@type":"Offer","price":"0","priceCurrency":"USD"}},{"@type":"SoftwareApplication","name":"Timestamp Converter","url":"https://timestamp-converter-c9i.pages.dev","description":"Convert Unix timestamps to human-readable dates and vice versa. Supports ISO 8601, RFC 2822, RFC 3339, and relative time calculations. Live Unix clock with auto-detection of seconds vs milliseconds. 100% client-side, no signup.","applicationCategory":"DeveloperApplication","operatingSystem":"Web","offers":{"@type":"Offer","price":"0","priceCurrency":"USD"}}]}

Tools Directory

Every tool here is free, requires no signup, and runs entirely in your browser or on our infrastructure. No credit card, no trial period, no limits.

ChangeMon

Free website change monitoring. Set up a URL to watch and get notified the moment content changes. Ideal for tracking competitor pricing, job postings, regulatory updates, and content revisions. Supports custom check intervals and email alerts.

monitoring automation free-tier

Landing Page Generator

Generate a complete SaaS landing page in seconds. Enter your product name, description, key features, and pricing — get a polished, responsive HTML page with 6 color scheme options. Zero dependencies, fully self-contained output you can deploy anywhere.

saas landing-page generator no-code

CodeSnap

Create beautiful, shareable code screenshots instantly. Supports 100+ programming languages with syntax highlighting, multiple editor themes, customizable backgrounds (gradients, solid colors), padding, and rounded corners. Export as PNG directly.

developer-tools screenshots code-beautify

Regex Tester

Free online regex tester with real-time match highlighting, find-and-replace, and 18+ common pattern library. Test, Replace, and Patterns tabs. 100% client-side — no data leaves your browser.

regex testing client-side free

JWT Decoder

Decode, inspect, and verify JSON Web Tokens right in your browser. Paste any JWT to see the header, payload, and signature broken down clearly. All processing happens client-side — your tokens never leave your browser. Supports HS256 and RS256 algorithms.

security jwt debugging client-side

Cron Expression Generator

Visual cron expression builder with point-and-click dropdowns, instant human-readable descriptions, next-run preview, and 13+ presets. Parse existing crontab entries to understand what they mean. 100% client-side, no signup.

cron scheduling devops free

Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa. Supports ISO 8601, RFC 2822, RFC 3339, and relative time calculations. Live Unix clock with auto-detection of seconds vs milliseconds. 100% client-side, no signup.

timestamp unix date-conversion free