We currently see on the web today rely on a subtle set of UI toolkits, libraries or frameworks that not only greatly simplify application development are great timesavers for web designers. In User interface design it’s always good to have the graphical elements (buttons, checkboxes, tab, drop down menus, etc) to build your own wireframe: wireframing kits, browser windows, form elements, grids, Mac OS X elements. You can download (for free) and use them right away, or customize your own copy that will come in handy in future, your choice. Full list after jump.

          1. Free Sketching & Wireframing Kit

          2. Peter’s DeivantART ID Ver1.3

          3. Open Source Social Software Toolkit: PeoplePods

          4. JuiceKit: A SDK For Creating Information Experience Applications

          5. Wireframe Magnets For Easy Prototyping (DIY Kit)

          6. Web Elements Kit (PSD) For Designing Faster

          7. Simple JavaScript UI Kit For Complex Apps:Uki

          8. Free PSD Kit For Easier Website Wireframing

          9. Flex 3 Stencil

          10. MochaUI – A Web Application User Interface Library

          11. Browser Screens and Website Elements

          12. omnigraffle-wireframe-stencils

          13. Mac OS X Interface Stencil Kit

          14. LivePipe: UI Components for Prototype

          15. Dijit – The Dojo Toolkit

          16. Web Browser Elements

          17. Best Practice UX Forms Stencil

          18. Web Form Elements Vol.2

          19. Web Form Elements

          20. Browser Form Elements

          21. 960 Grid Template for OmniGraffle

          22. Yahoo Stencil Kit

          23. Web Application Designer

          24. Massive Web UI & Button Set

          25. WEB UI Treasure Chest

          26. Wireframe Symbols

          27. Web Page Elements

          28. Graffletopia stencils

          29. Eclipse Stencil for OmniGraffle(TM)

          30. Quommunnication Stencil Kit

This article focuses on actual wireframing tools and standalone applications which you’ll use in any typical graphics editor such as Photoshop or Illustrator. …Or you could use pen and paper.