Top JavaScript Feature Flag Libraries 2025

GitHub Libraries → JavaScript → Feature Flag Libraries

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3D Libraries 5
A/B Testing Libraries 1
Admin Libraries 4
AI / ML Libraries 11
Analytics Libraries 2
Animation Libraries 8
Architecture Libraries 2
Audio Libraries 1
Auth Libraries 4
Autocomplete Libraries 5
Automation Libraries 1
AWS Libraries 1
BDD Libraries 2
Benchmarking Tools 2
BI Tools 1
Blockchain Libraries 3
BPM Libraries 3
Build Tools 16
Bundlers 7
Caching Libraries 3
Calendar Libraries 6
Carousel Libraries 1
Charting Libraries 7
CLI Libraries 11
Clipboard Libraries 1
CMS Libraries 3
Code Quality Tools 6
Concurrency Libraries 3
Configuration Libraries 3
Cookie Libraries 3
CQRS Libraries 1
CRDT Libraries 2
Cross-Platform Frameworks 7
CSS Libraries 12
CSV Libraries 1
Dashboards 1
Data Science Libraries 3
Data Structures 7
Database Libraries 17
Databases 12
Date / Time Libraries 4
Debounce Libraries 1
Dependency Injection Libraries 3
Deployment Tools 1
Dev Tools 7
Documentation Libraries 5
DOM Libraries 5
Drag and Drop Libraries 3
eCommerce Platforms 1
Electron Libraries 3
Emulators 4
Event Sourcing Libraries 1
Event Bus Libraries 2
Feature Flag Libraries 2
Fediverse Libraries 1
File Uploaders 3
Filesystem Libraries 5
Finance Libraries 5
Form Libraries 2
Formatting Libraries 2
Full-stack Frameworks 13
Functional Programming Libraries 1
Game Dev Libraries 3
Game Engines 3
Geospatial Libraries 7
GIS Libraries 1
Git Libraries 3
Google Libraries 1
Graphics Libraries 6
GraphQL Libraries 2
GUI Frameworks 1
Hashing Libraries 1
HTML Libraries 6
HTML Sanitizers 2
HTTP Clients 3
Hypermedia Libraries 3
Icon Libraries 1
ID Generators 4
IDE 1
Image Libraries 6
Job Scheduling Libraries 8
jQuery Alternatives 8
JSON Libraries 7
JSX Libraries 6
JWT Libraries 1
Kafka Libraries 1
Linters 6
LLM Libraries 10
Localization Libraries 4
Locking Libraries 1
Logging Libraries 5
macOS Libraries 2
Markdown Libraries 6
Math Libraries 2
Memoization Libraries 2
Messaging Libraries 1
Metrics Libraries 1
Micro Frontend Frameworks 7
Microservices Frameworks 11
Mobile Frameworks 6
Mocking Libraries 6
Modal Libraries 1
Money Libraries 4
MongoDB Libraries 2
Monitoring Tools 1
Networking Libraries 4
NLP Libraries 1
Notification Libraries 1
Numeric Libraries 5
OCR Libraries 1
Onboarding Libraries 1
Orchestration Frameworks 3
ORM Libraries 7
Package Managers 4
Parsing Libraries 2
PDF Libraries 4
Performance Testing Tools 2
Phone Number Libraries 1
Postgres Libraries 9
Presentation Libraries 1
Productivity Tools 2
Profiling Tools 1
Progress Libraries 3
Promise Libraries 5
QR Code Libraries 1
Rate Limiters 6
Reactive Libraries 4
Redis Libraries 1
Reporting Tools 2
Resilience Libraries 6
Retry Libraries 4
Routing Libraries 3
RPC Libraries 2
Runtimes 7
Search Libraries 10
Security Libraries 7
Serialization Libraries 3
Signals Library 2
Slider Libraries 1
SSH Libraries 2
State Machine Libraries 3
State Management Libraries 3
Static Site Generators 2
Storage Libraries 1
String Manipulation Libraries 3
SVG Libraries 4
Syntax Highlighters 3
System Libraries 9
Table / Data Grid Libraries 3
Template Engines 4
Test Data Generators 1
Testing Libraries 23
Text Editors 12
Torrent Libraries 1
Transpilers 3
Type Checkers 2
UI Component Libraries 8
URL Libraries 3
Utilities 10
Validation Libraries 10
Version Managers 5
Video Libraries 3
Video Players 1
VR Libraries 1
Web Automation Libraries 4
Web Components Libraries 5
Web Frameworks 33
Web Scrapers 7
Web Servers 8
WebRTC Libraries 4
WebSocket Libraries 5
Window Libraries 1
Workflow Engines 3
XML Libraries 2

last commit 11 hours ago posthog/posthog 28K +334

added 5 months ago

PostHog provides open-source web & product analytics, session recording, feature flagging and A/B testing that you can self-host.

Python Analytics Libraries A/B Testing Libraries Feature Flag Libraries JavaScript Analytics Libraries A/B Testing Libraries Feature Flag Libraries

last commit 2 days ago unleash/unleash 12K +38

added 4 months ago

Open-source feature management platform

JavaScript Feature Flag Libraries