[{"data":1,"prerenderedAt":172},["ShallowReactive",2],{"copy:downloads:en":3},{"seo":4,"sections":7,"hero":13,"choose":23,"how":58,"requirements":81,"it":110,"faq":137,"close":167},{"title":5,"description":6},"Download free, with {credit} welcome credit | Struct4U","Download XFEM4U, XFrame2D, XBeam2D, XConstruct and XSpreadsheets free. Register in the program for {credit} of credit as a welcome gift. No card.",{"choose":8,"how":9,"requirements":10,"it":11,"faq":12},"Programs","How it works","Requirements","IT notes","FAQ",{"eyebrow":14,"title":15,"lead":16,"micro":17,"facts":18},"Downloads · Windows 10 and 11, 64-bit","Download free. Start with {credit} of credit.","Pick the program for your job and install it. The first hour is free, without registering. When you register in the program, you get **{credit} of credit as a welcome gift**: about {creditH2d} hours of 2D or {creditH3d} hours of XFEM4U. After that, pay per use or buy a licence.","Free download · first hour free · [{credit} welcome credit when you register] · then pay per use · no credit card · Windows",[19,20,21,22],"Installers signed by Struct4U B.V.","One credit balance for every program","Billed per minute; your credit never expires","Software in {languages}",{"title":24,"soft":25,"lead":26,"legend":27,"heads":28,"installer":31,"workbook":32,"download":33,"facts":34,"xlsText":49,"releaseNotes":50,"releaseNotesLang":51,"product":54,"manual":55,"checked":56,"foot":57,"footLink":9},"Four programs and a spreadsheet.","Install the ones you need.","Each program does one job well, and they share one credit balance. Choose the job to see the download.","Which program do you need?",[29,30],"Task · program","Rate","Windows installer · {size} MB","Excel workbook · {size} MB","Download {name}",{"file":35,"updated":36,"signed":37,"signedBy":38,"languages":39,"languagesXls":40,"wordAddIn":41,"wordAddInText":42,"rate":43,"rateText":44,"rateXls":45,"tiers":46,"tiers2d":47,"tiers3d":48},"File","Updated","Signed","Struct4U B.V., code-signing certificate from DigiCert","Languages","Follows the program’s language: {languages}","Word add-in","Installs with the program","Pay-per-use","{rate}\u002Fh, billed per minute","The models it builds are billed in the program that runs them","Licences","Every tier: Basic 2D, Advanced and Premium","Advanced and Premium","Parametric modules that build XFrame2D and XFEM4U models: basements, rafter roofs, purlins, trusses, portals, trimmers, industrial floors on piles and more.","Release notes",{"en":52,"nl":53},"English, PDF","Dutch, PDF","About {name}","Manual","File details checked on {date}. The link always downloads the latest version.","Windows 10 and 11, 64-bit · one balance for every program",{"title":59,"soft":60,"lead":61,"steps":62,"facts":75,"pricing":80},"How it works.","From download to your first calculation.","No form on this site and no credit card. You register once, inside the program.",[63,66,69,72],{"title":64,"text":65},"Download free","Pick a program above and run the installer. Windows 10 or 11, 64-bit. You can calculate for an hour straight away.",{"title":67,"text":68},"Register in the program","Start the program and choose “I am a new customer”. Enter your details once, and we e-mail you an activation code.",{"title":70,"text":71},"Get {credit} of credit","Enter the code: your welcome credit is ready straight away. That’s about {creditH2d} hours of 2D or {creditH3d} hours of XFEM4U.",{"title":73,"text":74},"Pay per use, or a licence","Top up from {min} when you need more, or buy a licence when you calculate most days.",[76,77,78,79],"No credit card","One balance for every program","An idle hour is never charged","Your credit never expires","Compare pay-per-use and licences",{"title":82,"lead":83,"caption":84,"rows":85,"note":109},"System requirements.","The programs run on Windows. Here is what they need.","What the programs need",[86,89,92,95,98,101,103,106],{"label":87,"value":88},"Operating system","Windows 10 or 11, 64-bit. Not for macOS or Linux.",{"label":90,"value":91},"Runtime",".NET 10 (all programs, since September 2026). The installer includes it.",{"label":93,"value":94},"XFEM4U graphics","A graphics card with OpenGL 3.3",{"label":96,"value":97},"XFEM4U processor","Recommended: 10,000 or more CPU benchmark points",{"label":99,"value":100},"Disk space","Installers of {minSize} to {maxSize} MB",{"label":41,"value":102},"Word for Windows (desktop), with .NET Framework 4.8 and the VSTO runtime. Not Word for Mac or Word on the web.",{"label":104,"value":105},"XSpreadsheets","Microsoft Excel; the workbook is an .xlsm file with macros",{"label":107,"value":108},"Program languages","{languages}","Questions about your setup? E-mail {support}.",{"title":111,"soft":112,"lead":113,"items":114,"support":136},"Notes for IT.","Signed, and easy to allow.","For offices where IT installs the software, or a firewall stands in between.",[115,118,121,124,127,130,133],{"title":116,"text":117},"Signed installers","All four installers are signed by **Struct4U B.V.** with a DigiCert code-signing certificate. To check: right-click the .msi, choose Properties, then Digital Signatures.",{"title":119,"text":120},"XSpreadsheets macros","The XSpreadsheets workbook isn’t signed, so Excel may block its macros. Right-click the .xlsm file, choose Properties, tick Unblock and choose OK. Then open it and choose Enable Content.",{"title":122,"text":123},"Windows SmartScreen","SmartScreen can warn about a download it hasn’t seen often. Check that the publisher is Struct4U B.V., then choose More info and Run anyway.",{"title":125,"text":126},"Firewall and downloads","The download buttons on this site fetch the installers from `software.struct4u.win` over HTTPS; the installed programs fetch their updates from `software.struct4u.com`. The programs sign in and check the licence with `api.struct4u.win` and `struct4u.baaijse.nl`. A company firewall must allow all four hosts.",{"title":128,"text":129},"VPN","If the program can’t connect while a VPN is on, try again without the VPN, or send the message to support.",{"title":131,"text":132},"Smart App Control","On Windows 11 with Smart App Control on, Windows may block the installer or a part of it. Contact support and we’ll help.",{"title":134,"text":135},"Updates","The program tells you when a new version is available. The links on this page always download the latest one.","Support: {support}",{"title":138,"items":139},"Questions before you install.",[140,143,146,149,152,155,158,161,164],{"q":141,"a":142},"Is the download really free?","Yes. Downloading and installing costs nothing, and no card is needed. The first hour is free without registering. When you register in the program, you get **{credit} of credit** as a welcome gift.",{"q":144,"a":145},"Which programs does the credit work in?","All of them. The programs share one credit balance.",{"q":147,"a":148},"How long does {credit} last?","About {creditH2d} hours in the 2D programs or {creditH3d} hours in XFEM4U. You pay per minute, and an idle hour is never charged.",{"q":150,"a":151},"What happens when my credit runs low?","The program tells you when your balance runs low. Top up from {min}, in the program or online, or buy a licence. Your credit never expires.",{"q":153,"a":154},"Can I move to another computer?","Yes. Your credit belongs to your account, not to one computer: install the program on the other computer and log in with the same account. Colleagues can use the same balance at the same time.",{"q":156,"a":157},"Does it run on a Mac?","No. The programs run on Windows.",{"q":159,"a":160},"Can I download an older version?","No. The downloads always give the latest version of each program.",{"q":162,"a":163},"Do I need every program?","No. Install only the ones you need; your credit works in each of them.",{"q":165,"a":166},"I’m a student. Is there a student licence?","Yes: free for a year, with the e-mail address of your university or college.",{"title":168,"text":169,"primary":170,"secondary":171},"Pay per minute, or per year?","The calculator on the pricing page tells you in ten seconds which option is cheaper for your hours.","See pricing","Talk to an engineer",1793818601393]