A list of useful developer tools


  1. tools
    1. SEO Tools, Software and Articles – SEO Site Checkup | SeoSiteCheckup.com
    2. Nibbler – Test any website
    3. Open Site Explorer | Moz
    4. OpenLinkProfiler.org – The freshest backlinks. For free.
    5. https://www.woorank.com/en/www/meetup.com is not available
    6. Тест за удобство за мобилни устройства
    7. WP Test | The Best Tests For WordPress
    8. MobileTest.me – Test your mobile sites and responsive web designs
    9. WP Plugin Directory | WordPress Plugin Directory
    10. WP Settings API | Generate your own settings page!
    11. Recent Reports | WooRank.com
    12. Cross Browser Testing. Real mobile devices & browsers!
    13. GTmetrix | Website Speed and Performance Optimization
    14. Uptime Robot
    15. Pagespeed – The tool and optimization guide
    16. Free Broken Link Checker / Online URL Validator – finds dead / bad weblinks
    17. WordPress Theme Detector – Free online tool to find a site´s theme
    18. Email Blacklist Check – See if your server is blacklisted
    19. What WordPress Theme Is That?
    20. Developer Tools – W3C Developers
    21. IDI Web Accessibility Checker : Web Accessibility Checker
    22. WordPress › VIP Scanner « WordPress Plugins
    23. OnPage.org – For better Websites
    24. WordPress Performance and Security Benchmark by Pressjitsu
    25. Resizer – Google Design
    26. SEMrush – service for competitors research, shows organic and Ads keywords for any site or domain
    27. Virtual Machine (VM), Windows Virtual PC & BrowserStack
    28. WordPress Inspector | Speed, SEO, Security
    29. WordPress Security Scan | HackerTarget.com
    30. Sucuri SiteCheck – Free Website Malware Scanner
    31. Free Network Security Scanner – Acunetix
    32. ScanMyServer: Test the security of your website, web server or blog – Free!
    33. Website Security Check – Unmask Parasites
    34. Is This Website Safe | Website Security | Norton Safe Web
    35. Mobile Website Speed Testing Tool – Google
    36. Netsparker Cloud
    37. PHP Sandbox, test PHP online, PHP tester
    38. wireframe.cc – minimal wireframing tool – for free
    39. htaccess Tester – madewithlove
    40. WebPagetest – Website Performance and Optimization Test
    41. Performance Budget Calculator
    42. Analyse your HTTP response headers
    43. SSL Server Test (Powered by Qualys SSL Labs)
    44. Observatory by Mozilla
    45. Transfonter — online @font-face generator
    46. File Viewer, a Free Website Malware Scanner – Aw Snap
    47. Varvy SEO tool and optimization guide
    48. Unminify JS, CSS and HTML Code
    49. Company Check | Free Company & Director Information & Reports
    50. Sprite Cow – Generate CSS for sprite sheets
    51. Spriting with Compass | Compass Documentation
    52. tota11y – an accessibility visualization toolkit
    53. REVENGE.CSS
    54. CSS Specificity Graph Generator – by Jonas Ohlsson
    55. TestMyCSS | Optimize and Check CSS Performance
    56. Website Speed Test Comparison – DareBoost
    57. ish. yet another viewport resizer.
    58. Structured Data Testing Tool
    59. Structured data markup — Yandex.Webmaster
    60. Semantic inspector – Chrome Web Store
    61. MozBar – Chrome Web Store
    62. SpyFu Keyword Research Tools | Discover The Most Profitable Keywords For PPC & SEO
    63. Keyword Planner – Google AdWords
    64. Keyword Finder – Keyword Research and Analysis Tool
    65. Keyword Analyzer – Keyword Analysis Tool – Free SEO Tools – Web SEO Analytics
    66. Pricing – StatusCake – Website Monitoring
    67. Redirect Detective – A Free Tool To Trace Where Redirects End Up
    68. Семантичен анализ на текстове, SEO анализ на текст / Netpeak Bulgaria и магьосникът от ОЗ
    69. Check unique text online – duplicate content tool
    70. poopy.life: free, unlimited WordPress installs
    71. Защита контента сайта от копирования. Проверка статей на уникальность онлайн
    72. Bulk URL HTTP Status Code, Header & Redirect Checker — httpstatus.io
    73. MultiRBL.valli.org – Blacklist, Whitelist and FCrDNS check tool
    74. Newsletters spam test by mail-tester.com
    75. Critical Path CSS Generator – by Jonas Ohlsson
    76. hosts.cx: the website previewer
    77. Serpstat — Growth hacking tool for SEO, PPC and content marketing
    78. Free JSON API to instantly check the spam score of your email messages
    79. Gravityscan – Free Website Malware and Vulnerability Scanner
    80. PHP Serialized Editor – Online Visual Editor for Serialized Data
    81. Ubersuggest’s Free Keyword Tool, Generate More Suggestions
    82. Check Browser Compatibility, Cross Platform Browser Test – Browsershots
    83. Browser full page speed test tool
    84. WPSeek.com – A WordPress-centric search engine for devs and theme authors
    85. WP-Snippets | Hacks, Snippets and Articles
    86. Outreach List WP » The List
    87. WordPress Plugin Boilerplate Generator | Ready to use WordPress Plugin Boilerplate
    88. Tide: A path to better code across the WordPress ecosystem – XWP
    89. FREE browser addon for search volume & cpc of all your favorite keyword tools
    90. Lead Generation Software for Small Business | HubSpot
    91. VirusTotal
    92. Google Cached Pages of Any Website – CachedView
    93. Free On-Page SEO Checker – Get Your SEO Score Now
    94. AbuseIPDB – IP address abuse reports – Making the Internet safer, one IP at a time
    95. COMODO SSL Checker: Demo
    96. The Visual Workspace | Whimsical
  2. DNS
    1. The World’s Largest Repository of Historical DNS data
    2. DNS History
    3. DNS History
    4. MX Lookup Tool – Check your DNS MX Records online – MxToolbox
    5. Global DNS Propagation Checker – What’s My DNS?
    6. intoDNS: checks DNS and mail servers health
    7. SeeIP – A Simple Public IP Address API
    8. Insites – make your websites better
  3. seo
    1. Home  |  web.dev
    2. Free Domain Analysis Tool | Check SEO Metrics – Moz
    3. Broken Link Checker – Dr. Link Check
    4. Sitebulb Website Crawler – Award-winning Software for SEOs
    5. Ahrefs – SEO Tools & Resources To Grow Your Search Traffic
    6. .htaccess Redirect Generator – Daniel Morell
    7. Website Traffic – Check and Analyze Any Website | Similarweb
    8. Layout Shift GIF Generator – Cumulative Layout Shift (CLS) Visualiser.
    9. Cumulative Layout Shift Debugger (CLS) – webvitals.dev
    10. Re-wp Reviews| Scam check for re-wp.com| is re-wp.com safe?
    11. Regexper
    12. WordPress Theme Universe – themes and websites built with WordPress
    13. Ad Library
    14. Location Search – Discover Geo-tagged Videos – YouTube Geofind
    15. Cross Browser Testing Tools | Free Automated Website Testing | LambdaTest
    16. Webhook.site – Test, process and transform HTTP requests
    17. URL Fuzzer – Discover hidden files and directories | Pentest-Tools.com
    18. Htpasswd Generator – Create htpasswd – HostingCanada.org
    19. RequestBin — Collect, inspect and debug HTTP requests and webhooks
    20. Smallpdf.com – A Free Solution to all your PDF Problems
    21. TinyPNG – Compress PNG images while preserving transparency
    22. Библиотека с реклами
    23. GitHub – localtunnel/localtunnel: expose yourself
    24. Measure
    25. Test DKIM, SPF, DMARC, DomainKey, RBL by Uploading Email Content – Online Test Tool
    26. Critical Path CSS Generator – Prioritize above the fold content :: SiteLocity
    27. BuiltWith Technology Lookup
  4. automation
    1. PagerDuty | Real-Time Operations | Incident Response | On-Call | PagerDuty
  5. parsing
    1. Editor | JSON Visio
    2. The DevOps Checklist
    3. Flow Chart Maker & Online Diagram Software