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freecad.exe (also shown as FreeCAD.exe) is the Windows graphical executable for FreeCAD, an open-source parametric 3D modeling application used mainly for precise mechanical design. A copy installed from the official FreeCAD package is normally legitimate, but the filename alone proves nothing. Check its source, location, digital signature, and the SHA256 checksum of the installer before trusting it. If FreeCAD will not start or keeps crashing, work through version checks, safe mode, logging, configuration reset, and a clean reinstall before deleting anything.
What is freecad.exe?
FreeCAD is a desktop computer-aided-design program. It creates parametric 3D models, meaning dimensions and relationships can be edited later instead of being permanently baked into a mesh. On Windows, the graphical interface is launched by an executable named FreeCAD.exe; Windows file systems are normally case-insensitive, so people often write the same file as freecad.exe.
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The executable opens the modeling workspace, loads document files such as FCStd projects, and starts the workbenches and add-ons selected by the user. It is not a Windows component and is not required for Windows to boot. If you never installed FreeCAD, an unexpected copy deserves investigation rather than automatic removal.
Which release is current?
The official FreeCAD download documentation lists version 1.1.4 as the current stable release, published on 2026-09-28. That release supports 64-bit Windows 10 and Windows 11 and is offered as both an installer and a portable package. The release record calls 1.1.4 the last planned maintenance release in the 1.1.x series.
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Weekly builds and release candidates are development versions intended for testing. They can contain unfinished changes and are not the appropriate choice for production work when a stable build is available.
Is freecad.exe safe?
An official FreeCAD build is generally safe to run, but safety depends on provenance. Malware can use a familiar filename, place a look-alike executable in a temporary directory, or bundle a modified copy with another download. Treat the name as a clue, not as proof.
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Security changes in FreeCAD 1.1.4
FreeCAD 1.1.4 includes two security fixes for file-handling vulnerabilities that could be triggered by maliciously crafted FCStd files. Updating is particularly important if you open project files received from unknown people or downloaded from untrusted locations. Keeping an older build does not provide the protections added in this release.
What proves that a copy is authentic?
Use several independent checks:
- Download the installer or portable archive from the official FreeCAD download or release page.
- Calculate the downloaded file’s SHA256 hash and compare it with the checksum published by FreeCAD for that exact release and package.
- Open the executable’s Properties dialog, choose the Digital Signatures tab, and confirm that the signer is The FreeCAD project association AISBL. Windows and macOS builds are signed according to the project documentation.
- Check that the file is in a normal FreeCAD installation directory and that the installed version matches the package you intended to use.
- If it arrived from an unknown mirror, an unsolicited software bundle, or a temporary folder, isolate it for separate malware analysis instead of launching it simply because the filename looks familiar.
These checks establish where the file came from and whether it was altered in transit. They do not turn an unknown download into an official build, so source verification remains essential.
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Where should freecad.exe be installed?
The documented Windows locations differ depending on whether FreeCAD was installed for one user or for everyone on the computer.
| Installation type | Expected directory | What to check |
|---|---|---|
| Per-user | C:Users<username>AppDataLocalProgramsFreeCAD X.YY |
The account that installed FreeCAD should own the path, and the version folder should match the installed release. |
| All-user | C:Program FilesFreeCAD X.YY |
Access normally requires administrator approval, and the folder should have been created by the official installer. |
A copy running from %TEMP%, a browser download directory, a random folder under a user profile, or a removable drive is not automatically malicious, because portable packages and custom installations exist. It is nevertheless a reason to perform the source, signature, and checksum checks before use.
How can I verify a suspicious freecad.exe copy?
Use this sequence before trying repairs. It separates a damaged legitimate installation from an executable that should never be trusted.
- Record the path. In Task Manager, right-click the FreeCAD process and choose Open file location. Do not delete the file while you are still collecting evidence.
- Compare the path with the documented locations. A per-user or all-user directory is expected; an unrelated temporary or download path requires additional scrutiny.
- Inspect the signature. Right-click the file, select Properties, open Digital Signatures, select the signature, and view Details. A valid signature should identify The FreeCAD project association AISBL and report that Windows verified the signature.
- Identify the version. Open Command Prompt and run
FreeCAD --version. If the command is not on your PATH, change to the installation’sbindirectory or run the executable by its full path. TheFreeCAD --verboseoption can print additional startup information. - Verify the package hash. Re-download the matching installer or portable archive from the official release page and compare its SHA256 value with FreeCAD’s published checksum. Compare the package you downloaded, not an unrelated executable copied from another machine.
- Quarantine uncertain files. If the copy lacks the expected signature, came from an unknown bundle, or behaves unlike the official program, disconnect it from normal use and submit it to your organization’s malware-analysis process or a trusted security professional. Do not replace it with a random executable from a file-sharing site.
Why does freecad.exe keep crashing or refusing to start?
Startup failures usually fall into a few categories: an obsolete build, damaged user settings, an incompatible add-on, a corrupt installation, or a problem triggered while opening a particular document. A file-handling vulnerability is another reason to update before opening FCStd files from unknown sources. The fastest diagnosis is to change one variable at a time and preserve the version and log from each test.
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Damaged settings or add-ons
FreeCAD loads user preferences, workbench settings, and add-ons before the main window is ready. A bad preference or add-on can therefore make the program appear to crash immediately even when the executable itself is intact. Safe mode starts with those user customizations isolated so you can test this possibility.
Corrupt or incomplete installation
An interrupted update, deleted DLL, or damaged archive can prevent startup. Reinstalling over the top may leave the same configuration problem in place, which is why a clean uninstall and fresh official package are preferable after diagnostic steps.
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Document-specific failures
If FreeCAD starts normally but closes while opening one FCStd file, the document or an imported object may be the trigger. Test with a new blank document and avoid opening untrusted files until the application is updated and the source has been checked.
How do I diagnose a freecad.exe startup error?
Follow these steps in order, stopping when the cause is identified.
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- Confirm the installed copy. Launch FreeCAD from its documented installation directory rather than from a shortcut that may point to an old build. In Command Prompt, run
FreeCAD --version. If Windows says the command is not found, use the full path toFreeCAD.exeor repair the installation from the official installer. - Run a safe-mode test. Start
FreeCAD --safe-mode. If the program opens there but not normally, disable recently added workbenches or restore settings one change at a time. Safe mode is a diagnostic mode; it neither proves that the executable is malware nor repairs a damaged installation. - Write a startup log. Run
FreeCAD --write-logto createFreeCAD.login the user directory. To choose another destination, use--log-file <path>. Keep the log with the exact FreeCAD version, Windows edition, and the action that triggered the failure. - Test without the problem document. Start a blank document. If a blank file works, copy the original project and open the copy after updating FreeCAD; do not repeatedly open an unknown FCStd file while diagnosing a vulnerable or obsolete build.
- Check recent changes. Undo the last graphics-driver, add-on, preference, or Windows change only after recording it. Reverting several changes simultaneously makes the cause harder to identify.
How do I reset FreeCAD settings safely?
FreeCAD stores Windows user data under %APPDATA%FreeCAD. That directory can contain user.cfg, system.cfg, and other settings. Renaming the directory is safer than deleting it because it preserves a rollback copy.
- Close every FreeCAD window and confirm in Task Manager that no FreeCAD process remains.
- Press
Win + R, enter%APPDATA%FreeCAD, and press Enter. If the folder is not visible, use the documentation’sApp.getUserConfigDir()command from the FreeCAD console when the application can open. - Copy the entire folder to a backup location.
- Rename the original folder to something such as
FreeCAD-backup. If you suspect only one file, renameuser.cfgfirst rather than removing the whole directory. - Start FreeCAD normally. It will create fresh settings. Re-enable preferences and add-ons gradually, testing after each change.
If the crash returns when a backed-up configuration file is restored, leave that file out and recreate the affected preferences manually. Do not edit XML configuration contents unless you have a backup and a specific setting to change.
How do I reinstall freecad.exe cleanly?
A clean reinstall is appropriate when the official executable is damaged, files are missing, or the installation cannot be repaired in place. Preserve personal models and export any custom workbench settings before removing the program.
- Close all FreeCAD windows and background processes. The documented silent uninstaller can fail while any FreeCAD instance is still running.
- Use Windows Settings > Apps > Installed apps (or Apps & features on older Windows releases) to uninstall FreeCAD. The installation directory may also contain
Uninstall-FreeCAD.exe. - After uninstalling, check the old installation directory and remove only leftover program files that clearly belong to FreeCAD. Keep your project files and the backed-up
%APPDATA%FreeCADdirectory until the new installation is confirmed. - Download the matching Windows installer or portable package from the official FreeCAD release page. Verify its SHA256 checksum before running it.
- Install to the default per-user or all-user path unless you have a specific reason to choose another directory. The installer performs a corruption check; do not disable that check with
/NCRC, which the documentation does not recommend. - Launch the new copy, run
FreeCAD --version, and test a blank document before restoring add-ons, preferences, or older projects.
Should I update FreeCAD before opening an FCStd file?
Yes, especially when the file came from an unknown or untrusted source. FreeCAD 1.1.4 addresses two file-handling vulnerabilities involving maliciously crafted FCStd files, so an older build should be upgraded before such documents are opened. Keep a backup of the file and work on a copy.
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Choose the stable release for normal work. Weekly builds and release candidates are labeled as bleeding-edge and are intended for testing, not production use. If a project requires a particular older version for compatibility, keep that version isolated and avoid using it to inspect untrusted documents.
Can I delete freecad.exe?
Do not delete it solely because it appears in Task Manager or because the name is unfamiliar. First identify the path, verify the signature, establish the installation source, and determine whether FreeCAD is still needed. Deleting one executable from an installed program can leave broken shortcuts, missing libraries, and an uninstall entry that no longer works.
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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallIf the copy is a legitimate installation you no longer want, uninstall FreeCAD through Windows or its documented uninstaller, then remove confirmed leftovers after backing up projects and settings. If the copy fails provenance checks, quarantine it and obtain qualified malware guidance rather than manually replacing or launching it.
What should I do when each symptom points to a different cause?
| Symptom | Useful test | Next action |
|---|---|---|
| Nothing happens when the shortcut is clicked | Run FreeCAD --version from the installation’s bin directory and try the full executable path. |
Repair or reinstall from the official package if the file is missing or the command fails. |
| FreeCAD opens only in safe mode | Start normally after disabling recently installed add-ons and renaming the user configuration folder. | Restore settings gradually and keep the add-on that reproduces the crash disabled. |
| It crashes while opening one FCStd document | Open a blank document and test a copied project after updating. | Treat the document as the trigger; do not open unknown files on an obsolete build. |
| The executable is in a temporary or download folder | Inspect its signature, source, and package checksum. | Quarantine it for separate analysis if provenance cannot be established. |
| Reinstalling did not change the behavior | Rename %APPDATA%FreeCAD and run with --write-log. |
Use the clean-settings result and log to distinguish preferences from program files. |
How can I prevent future freecad.exe problems?
- Keep the stable FreeCAD release updated, particularly before opening FCStd files supplied by someone else.
- Download installers and portable archives from the official release channel and verify the published SHA256 checksum.
- Keep a dated backup of
%APPDATA%FreeCADbefore installing add-ons or changing major preferences. - Save project files in a location that is backed up independently of the program installation.
- When reporting a crash, include the exact version, Windows version, startup mode, command-line options, and
FreeCAD.lograther than only saying that FreeCAD stopped working. - Use development builds only for testing and keep them separate from production projects.
If you prefer an optional automated shortcut after trying the manual checks, Outbyte PC Repair can look for common Windows problems, clean temporary and cache files, and provide an app-crash log. It complements an antivirus rather than replacing one; results vary and no tool repairs every crash. It runs on Windows 11, 10, 8 and 7, offers a free trial by category for at least two days, and then requires a subscription.
What else do readers ask about freecad.exe?
Frequently Asked Questions
Does FreeCAD run on Windows 10 Home or only Windows 11?
The current stable 1.1.4 release documentation lists 64-bit Windows 10 and Windows 11 support. It does not establish support for 32-bit Windows, so confirm your system architecture before downloading.
Why does Windows show FreeCAD.exe instead of freecad.exe?
Windows normally ignores capitalization in executable filenames, so FreeCAD.exe and freecad.exe refer to the same name in this context. The important checks are the path, signer, source package, and checksum, not capitalization.
Do these 3 things before closing this tab:
1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problemsCan a portable FreeCAD copy be legitimate outside Program Files?
Yes. FreeCAD publishes a portable Windows package, which can be unpacked to a user-selected directory. Because portable copies are not tied to the standard installer path, verify the archive source, SHA256 checksum, and digital signature before running it.
Where is FreeCAD.log saved after a crash?
The --write-log option writes FreeCAD.log to the user directory by default. Use --log-file <path> when you need a known location for support or troubleshooting records.
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