JanusGraph vs NebulaGraph

Both are property graph databases. JanusGraph (2017-04, Apache-2.0, Java) ranks #31 this month; NebulaGraph (2019-05, Apache-2.0, C++) ranks #35. They differ on 20 of 46 surveyed features.

Attribute JanusGraph #31 ▼4 Strong NebulaGraph #35 ▲2 Strong
At a glance
Rank #31#35
Score 53.450.4
GitHub stars 5.9k12.4k
Popularity 72.775.5
Activity 42.334.6
Community 36.637.9
Research 64.752.8
Fundamentals
Description An open-source distributed property graph database forked from the Titan codebase. Supports pluggable storage backends (Cassandra, HBase, BerkeleyDB) with ACID transactions and native TinkerPop integration.A distributed property graph database with separated storage and computation layers, enabling horizontal scaling. Uses a custom SQL-like query language (nGQL) and supports ACID transactions.
Vendor The Linux FoundationVesoft
Model Property GraphProperty Graph
Kind databasedatabase
Category EstablishedEstablished
First released 2017-042019-05
Status activeactive
License Apache-2.0Apache-2.0
Written in JavaC++
Query languages GremlinnGQL
gdotv support yesno

Feature scores 20 of 46 rows differ

Feature JanusGraphNebulaGraph
Community & Business
Active development ✓✓
Commercial support ·✓
Live community ✓✓
Open Source ✓✓
Pricing ✓·
Trendiness 0.5·
Deployment
Containerization ✓✓
Work as dedicated instance ✓✓
Work as embedded ✓·
Testing in-memory version ✓·
Platform
Operating on Linux ✓✓
Operating on Windows ✓0.5
SaaS offering ✓0.5
Operations
Automatic updates ··
Client side caching ··
Data versioning support ··
Live backups ✓✓
Distribution
Cluster Re-balancing ·✓
Data Distribution ✓✓
High-Availability ✓✓
Query Distribution ·✓
Replication support ✓✓
Developer Experience
Data types defined ✓✓
Logging/Auditing ✓✓
Object-Graph Mapper ··
Reactive programming ··
Documentation up-to-date 0.75✓
Binary protocol ✓✓
CLI ✓✓
GUI ·✓
Data Model
Multi-database ✓·
Graph-native data ✓✓
REST API ✓0.5
Query Language ✓·
Transactions
Granular locking 0.5·
Multiple isolation levels 0.5·
Read committed transaction 0.5✓
Transaction support ✓✓
Schema & Security
Constraints ✓·
Schema support ✓✓
Secondary indexes ✓✓
Server side procedures ·✓
Triggers 0.5✓
Authentication ✓✓
Authorization ✓✓
Data encryption ··