FastString
The premium Open Source alternative to .NET StringBuilder
🎯 Best for:Games with heavy UI updates or real-time text processing where GC spikes are critical.
What is FastString?
A high-performance string manipulation library for Unity designed to replace the standard .NET StringBuilder. It minimizes Garbage Collector (GC) pressure by using pooled memory and avoiding heap allocations.
Tech Stack
C#Game Development
Why FastString?
- • Reduces GC spikes
- • Faster execution
- • Drop-in replacement
Limitations
- • Manual memory awareness needed
- • Limited API vs .NET
- • Potential buffer overflows
1/31/2026
Last Update
13
Forks
0
Issues
MIT
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to FastString instantly boosts your runway.
Competitor Cost
-$1,440
/ year (est. based on .NET StringBuilder)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%