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Validated Hashes 1,795,695
Queued for Validation 20,175
Quarantined 2,356
DLL

Qt5SerialPort.dll

Download and install Qt5SerialPort.dll to fix missing or corrupted DLL errors.

(128 Files Available)
Last Updated
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Repository Analysis

Company
The Qt Company Ltd.
Product
Qt5
Description
C++ Application Development Framework
Architecture
x86-64 (64 bit) x86 (32 bit)
Metadata Consensus
108/128 Files 84.4%
Higher percentages indicate stronger agreement across versions. Browse repository metadata to compare variant differences.

Companies

  • The Qt Company Ltd. 108
  • The Qt Company Ltd 19
  • Digia Plc and/or its subsidiary(-ies) 1

Products

  • Qt5 128

Descriptions

  • C++ Application Development Framework 108
  • C++ application development framework. 20

Frequently Asked Questions

What is Qt5SerialPort.dll?

Metadata analysis shows Qt5SerialPort.dll is a Dynamic Link Library (DLL) developed by The Qt Company Ltd. for Qt5 and is described as “C++ Application Development Framework” .

DLL files (Dynamic Link Libraries) are shared core modules used by Windows programs to run efficiently without duplicating code. Most errors occur because the DLL is missing, corrupted, or outdated. In many cases, reinstalling the related application, repairing Windows, or replacing the DLL resolves the issue.

How do I fix missing DLL errors?
1

Software Fix

Fully uninstall and reinstall the program causing the error. If you are not sure what program is broken, look at the available file metadata above for hints. If a clean reinstall fails, download and install the DLL file manually.

2

Windows System Fix

Make sure Windows is fully updated. To repair system files automatically, right-click the Start menu, open PowerShell (Admin), and run these two commands in order:

Step A DISM /Online /Cleanup-Image /RestoreHealth
Step B sfc /scannow
How do I install DLL files?
1

Download & Extract

Download the file, right-click the folder, and extract all files to your computer.

2

Install the .DLL

Move the extracted DLL file into the root folder of the software that is giving you the error (where its .exe file is located), or place it in the system directory below:

32-bit → C:\Windows\SysWOW64
64-bit → C:\Windows\System32
3

Restart the Program

Close and reopen the program or game so Windows can look for and load the new DLL file.

How do I register DLL files?

Most DLL files do not need registration. However, if your file is a COM component and requires explicit system registration, follow these steps:

1

Open Terminal

Right-click the Start menu and open PowerShell (Admin) or Command Prompt (Admin).

2

Run Command

Type the command below for your file type and press Enter. You can drag and drop the DLL file directly into the terminal window to fill its path automatically.

64-bit regsvr32 "C:\path\to\filename.dll"
32-bit C:\Windows\SysWOW64\regsvr32 "C:\path\to\filename.dll"

Latest Releases

NEW Verified
Qt5SerialPort.dll
by The Qt Company Ltd.
for Qt5
C++ Application Development Framework
Version: 5.15.18.0
Product Version: 5.15.18.0
Language: U.S. English (1033)
Uploaded: Aug 23, 2026   Size: 77.5KB
SHA256: 9db1285366a873678ebbf3b25a7c2dddd5159612cf77de3cc536a186ac4cf07e
SHA1: ab10402f57da028b898072eca5d2815560fc0e47
MD5: 8d07b3720c92f9b1eeebb09717198e09
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD
Verified
Qt5SerialPort.dll
by The Qt Company Ltd.
for Qt5
C++ Application Development Framework
Version: 5.15.13.0
Product Version: 5.15.13.0
Language: U.S. English (1033)
Uploaded: Dec 24, 2025   Size: 77KB
SHA256: 43fd89d8446977959f514f80284d978e9e81b90b0f54343aae731811dddb0fcf
SHA1: c7df445d4e1a5b968b69a5a5d69949a2cd45748d
MD5: 2e925c7ebcdbed5c9302c32c2323f6f5
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD
Verified
Qt5SerialPort.dll
by The Qt Company Ltd.
for Qt5
C++ Application Development Framework
Version: 5.12.7.0
Product Version: 5.12.7.0
Language: U.S. English (1033)
Uploaded: Dec 24, 2025   Size: 99.8KB
SHA256: 6cb11c51f6c48b545cd1d76eb27acb6723aae89de9e96b194de1a78f91b072c6
SHA1: 57f115470339b842202173c054db726e0ac9020e
MD5: 2a5b5068c9df941f8126152d777c9dd8
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD
Verified
Qt5SerialPort.dll
by The Qt Company Ltd.
for Qt5
C++ Application Development Framework
Version: 5.11.2.0
Product Version: 5.11.2.0
Language: U.S. English (1033)
Uploaded: Nov 24, 2025   Size: 88.7KB
SHA256: 0b2cceb762a24a0bd76807e3fad3ae86ac82f0ca5d11336cb53dc857507cc0df
SHA1: 54eb56ce378260aede8b64021fa41b191717c696
MD5: 3e2083e539eacb8c1ba14a0a3f7388b0
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD
Verified
Qt5SerialPort.dll
by The Qt Company Ltd.
for Qt5
C++ Application Development Framework
Version: 5.15.2.0
Product Version: 5.15.2.0
Language: U.S. English (1033)
Uploaded: Nov 3, 2025   Size: 98.6KB
SHA256: d4ae999d299d3c70798a02ace4fa0a7a734f3d8ddbbe76a80449436c373cf072
SHA1: c9bd4bfcd7f1857bb39630d488ba30514408c13b
MD5: bfd05628b8aa201f49b9d7ed2fed2f89
x64 – 64 Bit
AMD64, x86-64
DOWNLOAD