DBLE

Free#11 of 31 in Database Proxy Software

DBLE: A focused Linux proxy for MySQL sharding, routing, pooling, and distributed transactions. Ranked #11 of 31 in Database Proxy Software by our editors (8.1/10); pricing: Open source; best for mySQL sharding and distributed transactions.

8.1/10Editor score

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At a glance

Editor score
8.1 / 10
Pricing
Open source
Best for
MySQL sharding and distributed transactions
Paid from
Free
Deployment model
Self-hosted
Facts checked
20 Sep 2026

Where it wins
- Supports horizontal sharding and distributed transactions
- Combines routing, pooling, read/write splitting, and failover
- Open-source and deployable with ZooKeeper clusters
Where it doesn't
- Self-hosted deployment requires Linux operations
- Platform coverage is limited to Linux
- Ecosystem integrations center on MySQL and ZooKeeper

Our verdict on DBLE

DBLE is open-source database middleware for teams operating large or growing MySQL workloads. It sits between MySQL-compatible applications and multiple backend database instances, handling connection pooling, query routing, read/write splitting, weighted read load balancing, and horizontal sharding. Its design is aimed at distributing data and traffic while allowing applications to avoid changing most of their existing database access patterns.

The platform fit is focused rather than broad. DBLE runs as a self-hosted deployment on Linux, with MySQL protocol compatibility and support for MySQL and ClickHouse in its database specifications. ZooKeeper-backed cluster deployment adds an option for coordinating distributed middleware instances. The integration surface is centered on ZooKeeper and MySQL, so it suits infrastructure teams that can manage Linux services and database middleware directly. Teams seeking a wider range of hosted platforms or ecosystem connectors should consider alternatives with broader deployment coverage.

DBLE’s standout capability is the combination of sharding and distributed transaction support. It includes two-phase commit and XA distributed transactions, alongside SQL routing, weighted read balancing, high-availability failover, SQL hints, IP allowlists, and SQL blacklists. That gives teams a concentrated toolkit for distributing MySQL workloads while retaining controls over traffic and query behavior. Because the product is open-source and self-hosted, the trade-off is operational responsibility rather than a managed service model. Choose DBLE when MySQL scale, sharding, and cross-instance transaction coordination are central requirements; choose another option when minimal infrastructure management or a broader integration footprint matters more.

Questions about DBLE

What does DBLE run on? Linux. It runs self-hosted.

What does DBLE integrate with? 2 integrations: ZooKeeper and MySQL.

Who is DBLE built for? Mid-market companies and enterprises (our editorial estimate).

Your product? Our editors can test DBLE in depth and publish a review, labelled as paid · from $149/mo →

DBLE pricing

Plans Open sourceFree Free to use — no paid tier required for the core job.

See plans on opensource.actionsky.com

DBLE fact sheet

Free plan	Not verified
Paid from	Free
Deployment model	Self-hosted
Connection pooling	Yes
Query routing	Yes
Load balancing	Yes
Automatic failover	Yes
Supported databases	MySQL, ClickHouse
Maximum connections	Not verified
Deployment	Self-hosted
Platforms	Linux
Support	Phone, Community, Docs · 24/7
Built for	Mid-market, Enterprise (editorial estimate)
Integrations	2 integrations: ZooKeeper, MySQL
Pricing	Open source
Website	opensource.actionsky.com
Facts checked	20 Sep 2026

DBLE integrations

DBLE lists 2 integrations on its own site.

ZooKeeper
MySQL

Alternatives to DBLE

See all DBLE alternatives →

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Featured on iTechGuides

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Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026

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Last updated 14 Nov 2026 · How we research and update