All tools
Every tool on 3dfiles, in one place. All of them run in your browser; nothing is uploaded.
Viewers
3D file viewerOpen any common 3D file right in your browser – STL, STEP, OBJ, GLB, FBX, 3MF, PLY and more. Rotate, measure, check and convert, without installing anything.STL viewerOpen .stl files right in your browser. Rotate, zoom, measure and convert – nothing is uploaded and nothing to install.STEP viewerOpen STEP and STP CAD files in your browser – no SolidWorks, Fusion or FreeCAD needed. Rotate, inspect parts and convert to STL, OBJ or GLB.GLB viewerOpen .glb files right in your browser. Rotate, zoom, measure and convert – nothing is uploaded and nothing to install.OBJ viewerOpen .obj files right in your browser. Rotate, zoom, measure and convert – nothing is uploaded and nothing to install.FBX viewerOpen .fbx files right in your browser. Rotate, zoom, measure and convert – nothing is uploaded and nothing to install.3MF viewerOpen .3mf files right in your browser. Rotate, zoom, measure and convert – nothing is uploaded and nothing to install.PLY viewerOpen .ply files right in your browser. Rotate, zoom, measure and convert – nothing is uploaded and nothing to install.G-code viewerOpen a .gcode file from any slicer and preview the printer's toolpaths in 3D – right in your browser.
Converters
STL to STEP converterConvert .stl files to .step in your browser. Free, no account, and your model never leaves your device.STEP to STL converterConvert .step files to .stl in your browser. Free, no account, and your model never leaves your device.3MF to STL converterConvert .3mf files to .stl in your browser. Free, no account, and your model never leaves your device.STL to OBJ converterConvert .stl files to .obj in your browser. Free, no account, and your model never leaves your device.OBJ to STL converterConvert .obj files to .stl in your browser. Free, no account, and your model never leaves your device.GLB to STL converterConvert .glb files to .stl in your browser. Free, no account, and your model never leaves your device.FBX to OBJ converterConvert .fbx files to .obj in your browser. Free, no account, and your model never leaves your device.GLB to OBJ converterConvert .glb files to .obj in your browser. Free, no account, and your model never leaves your device.
Create
Gridfinity generatorGenerate Gridfinity bins and baseplates in any size – choose units, height and compartments, preview in 3D and download a ready-to-slice STL.QR code to STL generatorTurn a link, Wi-Fi text or contact into a scannable 3D printed QR code – with the right module size for your nozzle and a base ready for a two-colour print.3D text generatorType any text and get a 3D printable model – loose letters, a sign with a rounded plate, or a keychain with a ring hole.Keychain generatorType a name and get a 3D printable keychain with a ring hole – ready for a two-colour print in under 30 minutes.Lithophane makerTurn any photo into a 3D printable lithophane. When it is lit from behind, the picture appears in the plastic.Lithophane lamp generatorWrap your photo around a full 360° cylinder – the classic lithophane lamp or night light. Preview it in 3D before you print.Image to STL converterTurn a photo, logo or drawing into a 3D printable relief or lithophane. Adjust width and thickness, preview in 3D and download STL or 3MF.SVG to STL converterExtrude logos, icons and vector drawings into 3D printable models with perfectly sharp edges.
Calculators
Resin calculatorFind out how much resin a print needs and what it costs. Drop your STL to measure its volume automatically, or type it in.3D print cost calculatorWork out the real cost of a 3D print – material, electricity, machine wear and labour – and the price to charge.STL volume calculatorDrop an STL, 3MF, OBJ or STEP file to get its exact volume, weight in your material, surface area and size.
Mesh tools
3D print checker & auto-orientDrop a model and get the best orientation for printing, an overhang and support check, which printers it fits, and slicer settings to start from.STL repairFix broken STL files in your browser: holes are closed, normals made consistent and bad triangles removed – then download a clean, watertight STL.Reduce STL file sizeShrink heavy STL files by reducing the triangle count – keep the shape, lose the megabytes. Preview the result before you download.STL splitterSeparate a multi-part STL into individual files – every loose shell becomes its own STL, 3MF or OBJ, packed into one ZIP.Merge STL filesCombine several 3D files into one STL or 3MF – keep their original positions or lay them out side by side, ready for one print job.Scale STLResize a model to an exact width, height or depth in millimetres, by percentage, or fix inch/metre files – and download the scaled file.Batch 3D file converterDrop a whole folder of models and convert them all to STL, 3MF, OBJ, GLB, STEP or PLY – downloaded as a single ZIP.
All converters
STL to OBJ converterOBJ to STL converterSTL to STEP converterSTEP to STL converter3MF to STL converterSTL to 3MF converterGLB to STL converterSTL to GLB converterFBX to STL converterGlTF to STL converterGLB to OBJ converterOBJ to GLB converterFBX to OBJ converterFBX to GLB converterPLY to STL converterSTL to PLY converterIGES to STL converterDAE to STL converterSTEP to OBJ converterSTEP to GLB converterOBJ to 3MF converter3MF to OBJ converterGlTF to GLB converterGLB to glTF converterUSDZ to GLB converterUSDZ to OBJ converterOBJ to USDZ converterGLB to USDZ converterSTL to glTF converterSTL to USDZ converterPLY to OBJ converterOBJ to PLY converterSTL to STP converterSTP to STL converter