Free tools for 3D, plans and printing
Seven tools that each solve one problem, with no account and nothing uploaded to a server. Everything runs in your browser.
All tools
Online STL viewer
Open STL, OBJ and GLB files straight in the browser, with nothing to install. See the bounding box, triangle count, volume and estimated mass in PLA.
free, no accountSTL ↔ OBJ ↔ GLB converter
Convert a 3D file between formats right in the browser: STL, OBJ and GLB in any combination, with no account and nothing uploaded.
free, no accountWall thickness calculator
Set the nozzle and perimeter count and find out whether the wall will hold. With the extrusion-multiple rule and recommended thicknesses by part type.
free, no accountHouse materials calculator
Enter the dimensions and find out how much masonry, concrete, roof covering and render you need, with waste allowances included.
free, no accountStair calculator
Enter the height to climb and the run available, and get the number of steps, riser and tread, plus a check against the 2h + g rule.
free, no accountDrawing scale converter
Convert between a measurement on paper and the real size, at any scale. With the usual scales and when each one is used.
free, no account3D printing cost calculator
Find out how many grams of filament a part uses, what the material and power cost, and the price such a part usually sells for.
free, no account