Provides high-performance and low-allocating types that serialize objects to JavaScript Object Notation (JSON) text and deserialize JSON text to objects, with UTF-8 support built-in. Also provides types to read and write JSON text encoded as UTF-8, and to create an in-memory document object model (DOM), that is read-only, for random access of the JSON elements within a structured view of the data.
The System.Text.Json library is built-in as part of the shared framework in .NET Runtime. The package can be installed when you need to use it in other target frameworks.
Tentative categories were assigned with moderate confidence (0.5 to 0.75): they are shown, but they do not count toward a category’s momentum. How categories work
Install
dotnet add package System.Text.Json
Adoption
All-time downloads
6.6B
Observeddownloads, all time
Popularity
Top 1% on NuGet
Derived100th percentile within NuGet
Dependents
—Not published by NuGet
Not published
Maintenance
0.82
DerivedRelease cadence and recency, 0 to 1
Releases per year
9.5
67 versions over its life
Growth by period
Derived by Crest of Tech from two observations of NuGet’s own figure, a period apart. Nothing is stored or estimated: without an observation near the period’s start, the period is still collecting.
7 days
Collectinghistory
Collecting
30 days
Collectinghistory
Collecting
90 days
Collectinghistory
Collecting
1 year
Collectinghistory
Collecting
Adoption history
Adoption historydownloads, all time
Observations in this range began OCT 5, 2026. The chart appears after 7 observations; 2 so far. Collecting history.