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STL Converter
STL 3D conversion for collaboration. reaConverter exports models to compatible formats, fast and offline.
How to Convert .stl Files in Bulk
1. Install reaConverter
Download reliable STL conversion software to convert multiple .stl files and folders in one go.
2. Select STL Files
Select STLs from a folder or drag and drop them into reaConverter, then choose the desired output format.
3. Start Conversion
Click Convert to start the bulk conversion of all selected STL files. The process will begin right away.
Step by step
See It in Action
For quick and effortless STL file handling on your PC, reaConverter offers powerful conversion tools with batch processing. Best of all, it works entirely offline — ensuring your sensitive data never leaves your computer.
3D Toolkit
Do more with your 3D models
reaConverter converts STL models to other 3D formats, images and 2D drawings, offline and a whole folder at a time.
- Move models between STL, STEP, GLB and glTF
- Create STL models from flat 2D drawings by extrusion
- Render models to JPG, PNG or PDF at any angle, rotated on X, Y and Z
- Convert new models as they arrive with Watch Folders
User reviews
From those who tried it
Average User Rating:Last updated on August 01, 2026
Finally an app that actually opens my weird files! Saves me from format frustration daily.
Kyle Brooks
Happy User
5/5⭐ Finally! Does what it promises - converts AND tweaks images without complicated menus. Perfect for quick jobs.
J. Mitchell
Satisfied Customer
Exactly what I needed! Simple, fast, and no bloat. I use reaConverter Lite to resize and convert batches of images for documents. The presets make it super easy, and everything works smoothly.
Mark Jones
Happy User
An ultra-fast solution for minimizing file sizes. The entire conversion process takes just 3 minutes!
Logan B.
Satisfied Customer
Your solution was buried deeper in search results than it should be. After struggling with unclear alternatives, I found your guides — finally, instructions that made sense for a first-time user like me. Excellent work!
Richard E. Miller
Satisfied Customer
Rare software that actually does it all! Converts anything, beautiful interface, and never lets me down. A must-have!
Henry R.
Happy User
Questions & Answers
STL files: Frequently Asked Questions
What are STL files?
The STL file format is a 3D file format used in computer-aided design (CAD) software. It represents a three-dimensional object as a series of interconnected triangles, each specified by the coordinates of its three vertices. The STL format is commonly used for 3D printing, rapid prototyping, and computer-aided manufacturing (CAM) applications. It is also used in various computer graphics applications, such as video games and virtual reality simulations.
Can reaConverter open STL files?
reaConverter fully supports the STL file format – open, edit, and export STL files to any other popular file format with ease.
reaConverter also lets you:
- convert SketchUp SKP/SKB files to STL
Do I need 3D or CAD software to convert STL files?
No. reaConverter reads STL files on its own, so the conversion needs no Blender, CAD program or slicer. It runs offline on your PC and handles whole folders at once, which suits model libraries, supplier deliveries and product ranges that have to reach people working in other software.
How do I change STL to another format?
reaConverter is a user-friendly tool for converting STL files. Once installed on your computer, it allows you to convert all your .stl files at once with just a few clicks. You can even convert STL models directly from Windows Explorer using the right-click menu — fast and convenient.
Can I convert STL online?
If you only want to convert a few STL files, you are welcome to try our free online STL converter.
How can I turn STL files on my computer to another format?
The best way to convert STL files on your PC is to get a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from STL.
How can I automate STL files conversion?
reaConverter supports all the essential automation features, such as right-click сonversion and Watch Folders, for the most efficient automated file conversion in any software of its kind.
Can I convert STL files using scripts or the command-line interface?
reaConverter provides full access to all its features from the Windows command-line shell, including the command-line stl converter.
What else can I do with reaConverter?
Convert CAD formatsSet file dateConvert Gerber imagesChange image color spaceConvert DICOM images
What formats can I convert a STL file to?
stl → aistl → apngstl → avifstl → bmpstl → bpgstl → calstl → cg4stl → cgmstl → cinstl → citstl → dcmstl → dcxstl → ddsstl → dgnstl → disstl → drwstl → dwfstl → dwgstl → dxfstl → emfstl → epistl → epsstl → faxstl → fitsstl → flifstl → gbrstl → gifstl → glbstl → gltfstl → hpgstl → hrustl → icostl → iffstl → igesstl → igsstl → jp2stl → jpegstl → jpgstl → jxlstl → jxrstl → ktx2stl → mtvstl → pclstl → pctstl → pcxstl → pdfstl → pgmstl → picstl → pltstl → pngstl → ppmstl → prcstl → psstl → psdstl → qoistl → qrtstl → radstl → rlastl → sgistl → shpstl → stepstl → stpstl → svgstl → svgzstl → tgastl → tifstl → tiffstl → u3dstl → webpstl → webpllstl → wmfstl → wmzstl → wpgstl → wrlstl → x3dstl → xbmstl → xpm
What types of files can I convert to STL format?
!c → stl$c → stl$s → stl000 → stl001 → stl001 → stl2bp → stl2d → stl3 → stl301 → stl3d → stl3ds → stl3fr → stl3mf → stl411 → stl4bt → stl73i → stl82i → stl83i → stl85i → stl86i → stl89i → stl92i → stla64 → stlabc → stlabic → stlabs → stlac → stlac3d → stlacc → stlace → stlace2 → stlacorn → stladt → stlaff → stlafp → stlafx → stlai → stlaip → stlalias → stlals → stlami → stlamj → stlani → stlapng → stlapx → stlarc → stlarf → stlari → stlarn → stlarrow → stlarrows → stlart → stlarw → stlasc → stlase → stlask → stlatk → stlavif → stlavs → stlawd → stlb → stlb&w → stlb16 → stlb3d → stlb_w → stlbay → stlbfl → stlbfli → stlbfx → stlbga → stlbif → stlbig → stlbil → stlbin → stlbip → stlbld → stlblend → stlblk → stlbm → stlbmf → stlbmg → stlbmp → stlbmq → stlbmx → stlbn → stlbna → stlbob → stlbot → stlbpg → stlbpr → stlbre → stlbrk → stlbrt → stlbs → stlbsg → stlbsq → stlbt → stlbtn → stlbum → stlbvh → stlbw → stlbyn → stlc4 → stlcal → stlcals → stlcam → stlcan → stlcap → stlcar → stlcat → stlcbm → stlcbr → stlcbz → stlcdf → stlcdr → stlcdu → stlce → stlce1 → stlce2 → stlcel → stlcg4 → stlcgm → stlciff → stlcin → stlcine → stlcip → stlcit → stlclo → stlclp → stlcmp → stlcmt → stlcmu → stlcmw → stlcmx → stlcnc → stlcob → stlcp8 → stlcpa → stlcpc → stlcpi → stlcpt → stlcr2 → stlcr3 → stlcrd → stlcrg → stlcrw → stlcs1 → stlcsm → stlct → stlct1 → stlcub → stlcut → stlcvp → stlcxf → stlczi → stldae → stldat → stldbw → stldc2 → stldc3 → stldcm → stldcr → stldcs → stldcx → stldd → stldds → stldem → stldgn → stldib → stldic → stldicom → stldim → stldis → stldjv → stldjvu → stldng → stldoc → stldocx → stldol → stldoo → stldpx → stldrd → stldrf → stldrl → stldrw → stldrz → stldsi → stldst → stldt0 → stldt1 → stldt2 → stldta → stldwf → stldwfx → stldwg → stldxf → stle00 → stle57 → stlecc → stlecw → stlef3 → stlefx → stlei → stleidi → stleip → stlemf → stlemz → stlenff → stlepa → stlepi → stleps → stlepub → stlerf → stlerr → stlers → stlesm → stlets → stlexr → stlf96 → stlfac → stlface → stlfax → stlfbm → stlfbx → stlfcx → stlfeather → stlfff → stlfgb → stlfi → stlfit → stlfits → stlflc → stlfli → stlflif → stlfmf → stlfp2 → stlfpg → stlfpp → stlfpr → stlfpt → stlfpx → stlfre → stlfrm → stlfsy → stlftf → stlfts → stlfun → stlfx3 → stlfxd → stlfxm → stlfxo → stlfxr → stlfxs → stlg → stlg16 → stlg3 → stlg3n → stlg4 → stlgaf → stlgb → stlgbl → stlgbo → stlgbp → stlgbr → stlgbs → stlgbx → stlgcode → stlgdb → stlgeb → stlgen → stlgeo → stlgeojson → stlgeojsonl → stlgeojsons → stlgeotiff → stlgff → stlgg → stlgif → stlgig → stlgih → stlgis → stlgko → stlglb → stlgltf → stlgm → stlgm1 → stlgm2 → stlgm4 → stlgmf → stlgml → stlgmt → stlgp4 → stlgpb → stlgpkg → stlgpx → stlgraf → stlgrb → stlgrb → stlgrb2 → stlgrc → stlgrd → stlgri → stlgrib → stlgrib2 → stlgro → stlgro2 → stlgro4 → stlgsb → stlgsd → stlgti → stlgtiff → stlgtl → stlgtm → stlgto → stlgtp → stlgts → stlgtx → stlgtx → stlgtz → stlgun → stlgvb → stlgxf → stlgxt → stlh4 → stlhdf → stlhdf4 → stlhdp → stlhdr → stlhdri → stlhdru → stlhed → stlheic → stlheif → stlhf → stlhf2 → stlhfz → stlhg → stlhgl → stlhgt → stlhir → stlhmb → stlhmp → stlhp → stlhp1 → stlhp2 → stlhpg → stlhpgl → stlhpi → stlhr → stlhru → stlhrz → stli17 → stli18 → stlia → stlib7 → stlibg → stlica → stlicb → stlicl → stlicn → stlicns → stlico → stlidc → stlif9 → stlifc → stlifczip → stliff → stlifl → stliges → stligs → stliim → stliimg → stliiq → stlili → stlim1 → stlim5 → stlima → stlimg → stlimi → stlimt → stlinfo → stlioca → stlipc → stlipg → stliph → stlipt → stliris → stlirr → stlirrmesh → stlisg → stlish → stlism → stliss → stlitf → stlitg → stlj2c → stlj2k → stlj6i → stljb2 → stljb2e → stljb2g → stljbf → stljbg → stljbig → stljbig2 → stljfi → stljfif → stljif → stljiff → stljig → stljj → stljls → stljml → stljng → stljp2 → stljp2000 → stljp2k → stljpc → stljpe → stljpeg → stljpf → stljpg → stljpg2 → stljpm → stljpp → stljps → stljpx → stljson → stljtf → stljxl → stljxr → stljxs → stljxt → stlk25 → stlkap → stlkar → stlkc2 → stlkdc → stlkfx → stlkml → stlkmz → stlkoa → stlkps → stlkqp → stlkra → stlkro → stlktx2 → stllan → stllas → stllbl → stllbm → stllcp → stllda → stllff → stllif → stllos → stllvp → stllwi → stllwo → stllws → stllxo → stlm3d → stlm8 → stlmac → stlmag → stlmap → stlmapml → stlmbfavs → stlmbfs → stlmbm → stlmbtiles → stlmd2 → stlmd3 → stlmd5 → stlmdc → stlmdl → stlmef → stlmem → stlmesh → stlmgr → stlmh → stlmic → stlmid → stlmidi → stlmif → stlmiff → stlmil → stlmim → stlmix → stlmng → stlmos → stlmot → stlmph → stlmpl → stlmpnt → stlmpo → stlmpr → stlmrf → stlmrf → stlmrw → stlms3d → stlmsk → stlmsp → stlmtv → stlmtw → stlmusicxml → stlmvt → stlmxl → stln1 → stlnap → stlnat → stlnav → stlnc → stlnc1 → stlnc4 → stlncd → stlncr → stlnct → stlnd2 → stlndo → stlnef → stlneo → stlnff → stlngc → stlnii → stlnii.gz → stlnitf → stlnitf → stlnlm → stlnmp → stlnol → stlnpl → stlnpm → stlnrw → stlnsf → stlnsr → stlntf → stlnva → stloaz → stlobj → stlobm → stlocp → stloff → stlofx → stlogex → stloil → stlorb → stlorf → stlosm → stloxps → stlp64 → stlp7 → stlpac → stlpan → stlparquet → stlpat → stlpax → stlpbf → stlpbm → stlpbt → stlpc → stlpcc → stlpcd → stlpcl → stlpcm → stlpcp → stlpct → stlpcx → stlpd → stlpdb → stlpdd → stlpdf → stlpdn → stlpdp → stlpds → stlpdx → stlpe4 → stlpef → stlpen → stlpfr → stlpg → stlpgc → stlpgf → stlpgm → stlph → stlphp → stlpi → stlpic → stlpicio → stlpict → stlpig → stlpix → stlpixar → stlpk3 → stlplc → stlplo → stlpls → stlplt → stlply → stlpm → stlpmg → stlpmp → stlpmtiles → stlpmx → stlpng → stlpnm → stlpnt → stlpol → stlppi → stlppm → stlppp → stlpps → stlppt → stlprc → stlprf → stlprf → stlpri → stlprj → stlprn → stlprt → stlps → stlpsa → stlpsb → stlpsd → stlpse → stlpsf → stlpsp → stlpspbrush → stlpspframe → stlpspimage → stlpspmask → stlpst → stlptk → stlptoca → stlptx → stlpwp → stlpxa → stlpxb → stlpxl → stlpxn → stlpxr → stlpxs → stlpzl → stlpzp → stlq0 → stlq3d → stlq3o → stlq3s → stlqcc → stlqdv → stlqli → stlqoi → stlqrt → stlqti → stlqtif → stlqtk → stlqtl → stlr3d → stlrad → stlraf → stlras → stlrast → stlraw → stlrdc → stlrec → stlrel → stlrgb → stlrgh → stlriff → stlrik → stlris → stlrix → stlrla → stlrlb → stlrlc2 → stlrle → stlrmi → stlrp → stlrpbm → stlrpm → stlrpt → stlrpt → stlrs → stlrsb → stlrss → stlrst → stlrsw → stlrtf → stlrw2 → stlrwl → stlrwz → stlsar → stlsc → stlsc2 → stlsci → stlscn → stlscr → stlsct → stlscu → stlscut → stlscut2 → stlscut3 → stlscut4 → stlscut5 → stlscut6 → stlscx → stlsd0 → stlsd1 → stlsd2 → stlsdat → stlsdg → stlseq → stlsff → stlsfw → stlsg-grd-z → stlsgi → stlshp → stlshx → stlshz → stlsi → stlsib → stlsid → stlsigdem → stlsim → stlsir → stlsj1 → stlsk → stlsk1 → stlskb → stlskm → stlskn → stlskp → stlslf → stlsmb → stlsmd → stlsmp → stlsmt → stlsna → stlsol → stlspc → stlspl → stlspp → stlsps → stlspu → stlsr → stlsr2 → stlsrf → stlsrw → stlssb → stlssi → stlssp → stlsst → stlst4 → stlst5 → stlst6 → stlst7 → stlst8 → stlstc → stlstep → stlsti → stlstp → stlsts → stlstw → stlstx → stlsul → stlsun → stlsuniff → stlsvg → stlsvga → stlsvgz → stlsvs → stlswf → stlsxf → stlsyj → stlsyn → stlsynu → stltaac → stltab → stltap → stltdi → stltdim → stlter → stltex → stltg4 → stltga → stlthf → stltif → stltiff → stltil → stltim → stltjp → stltm2 → stltn1 → stltn2 → stltn3 → stltnl → stltny → stltoc → stltop → stltopojson → stltpkx → stltrp → stltsk → stltub → stltxt → stlu3d → stluc → stluni → stlupi → stluyvy → stlv → stlv3m → stlvct → stlvda → stlvdx → stlvff → stlvfk → stlvfx → stlvi → stlvic → stlvicar → stlvid → stlvif → stlviff → stlvit → stlvob → stlvpb → stlvrt → stlvsd → stlvsdm → stlvsdx → stlvsi → stlvst → stlvta → stlvtf → stlwal → stlwb0 → stlwb1 → stlwbc → stlwbmp → stlwbp → stlwbz → stlwdp → stlwebp → stlwebpll → stlwfx → stlwire → stlwmf → stlwmz → stlwpd → stlwpg → stlwrl → stlwzl → stlx → stlx10 → stlx11 → stlx3d → stlx3f → stlxar → stlxbm → stlxcf → stlxfig → stlxgl → stlxif → stlxim → stlxisf → stlxln → stlxpm → stlxps → stlxtf → stlxv → stlxwd → stlxyz → stlyuv → stlzae → stlzarr → stlzbr → stlzgl → stl
Discover More
Beyond STL conversion
Convert .stl files in batches of any size, with editing and processing applied along the way. The same tool also handles 800+ other formats, including CAD, medical imaging, and GIS.
