Heimdall Database Proxy vs HeliosProxy

Heimdall Database Proxy9.4Visit HeliosProxy8.7Visit

Higher score Heimdall Database Proxy #1 in Database Proxy Software 9.4/10 Free plan Free plan✓ 4 of 4 features Visit Heimdall Data

vs

HeliosProxy #5 in Database Proxy Software 8.7/10 Open source ✓ 4 of 4 features Visit HeliosProxy

• Heimdall Database Proxy fits best

  Broad, enterprise-grade database proxying

• HeliosProxy fits best

  Advanced PostgreSQL proxy engineering

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Side by side

Feature	Heimdall Database Proxy 9.4/10 Visit ↗	HeliosProxy 8.7/10 Visit ↗
At a glance
Editor score	9.4	8.7
Ranking	#1 in Database Proxy Software	#5 in Database Proxy Software
Best for	Broad, enterprise-grade database proxying	Advanced PostgreSQL proxy engineering
Pricing model	Free plan + paid	Free
Starting price	—	Open source
Free plan	✓ (best)	Not checked yet
Free trial	—	—
Deployment	Cloud, Self-hosted	Self-hosted
Built for	Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features Heimdall Database Proxy 4/4 · HeliosProxy 4/4
Connection pooling	✓	✓
Query routing	✓	✓
Load balancing	✓	✓
Automatic failover	✓	✓
Specs
Deployment model	Both	Self-hosted
Supported databases	MySQL, PostgreSQL, Amazon RDS, Oracle, SQL Server, MariaDB, DB2, Greenplum, Redshift	PostgreSQL-compatible databases
Maximum connections	Not checked yet	Not checked yet
Our review
Pros	Supports pooling, routing, load balancing, caching, and failover Works with major relational databases and cloud platforms Enterprise Plus adds multi-tenant routing, masking, and GDPR auditing	Session, transaction, and statement connection pooling modes Routing, load balancing, health monitoring, and automatic failover WASM plugins, traffic replay, and major-version upgrade orchestration
Cons	Enterprise features require paid editions Community Edition is specifically for Greenplum deployments Its broad feature set may exceed narrow proxying needs	Self-hosted deployment requires customer-managed infrastructure Database support centers on PostgreSQL-compatible backends Advanced capabilities may require PostgreSQL proxy engineering expertise
Our verdict	Heimdall Database Proxy is a data access layer for application developers, database administrators, and architects. It sits between applications and SQL databases in cloud or on-premise environments, providing connection pooling,… Read the review →	HeliosProxy is an open-source PostgreSQL data-plane for routing database connections and traffic between clients and PostgreSQL-compatible backends. It is designed for teams operating self-hosted PostgreSQL environments that need more… Read the review →

Strengths and trade-offs

• Heimdall Database Proxy — where it wins

  • Supports pooling, routing, load balancing, caching, and failover
  • Works with major relational databases and cloud platforms
  • Enterprise Plus adds multi-tenant routing, masking, and GDPR auditing

  Where it doesn't

  • Enterprise features require paid editions
  • Community Edition is specifically for Greenplum deployments
  • Its broad feature set may exceed narrow proxying needs

• HeliosProxy — where it wins

  • Session, transaction, and statement connection pooling modes
  • Routing, load balancing, health monitoring, and automatic failover
  • WASM plugins, traffic replay, and major-version upgrade orchestration

  Where it doesn't

  • Self-hosted deployment requires customer-managed infrastructure
  • Database support centers on PostgreSQL-compatible backends
  • Advanced capabilities may require PostgreSQL proxy engineering expertise

• Heimdall Database Proxy9.4/10 · Free plan

  A broad database proxy with pooling, routing, analytics, security, and failover.

  Visit Heimdall DataFull verdict →
• HeliosProxy8.7/10 · Open source

  A deep self-hosted PostgreSQL proxy for teams building advanced traffic and failover control.

  Visit HeliosProxyFull verdict →