No. 9 of 30 ·Database Proxy Software

DBLE

Linux · Self-hosted

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Freedom report

Two barsScore 6.3

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

DBLE is ranked #9 of 30 in database proxy software on Freedom251. It runs on Linux, Self-hosted. There is a free plan.

DBLE plans and pricing

All plans

DBLE (open-source version) Free GPL-2.0 licensed · enterprise support plans available github.com · 4 Oct 2026

Compared on database proxy software

Deployment model: self-hosted
Connection pooling: Yes
Query routing: Yes
Load balancing: Yes
Automatic failover: Yes
Supported databases: MySQL, ClickHouse

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The record

Purpose: DBLE is high-scalability middleware for MySQL sharding.
MySQL compatibility: DBLE uses the MySQL protocol and can replace MySQL in many cases without application code changes.
High availability: The DBLE server can run as a cluster so business workloads do not suffer from a single-node failure.
SQL support: DBLE supports SQL 92 and MySQL dialect features, including group by, order by, distinct, joins, and unions; some features are listed on its roadmap.
Query optimization: It optimizes complex queries involving global-table joins, sharding tables, ER-relation tables, and subqueries.
Transactions: DBLE supports distributed transactions with two-phase commit and offers normal and XA modes; XA depends on MySQL 5.7 XA transactions and backend availability and disk reliability.
Sharding features: The official site lists hash, modulo, time-based, and range-based sharding algorithms, plus global tables, ER tables, and custom sharding algorithms.
Scaling and deployment: The official site lists read/write separation, master-slave expansion, complete expansion plans, and ZooKeeper cluster deployment.
Security controls: The official site lists password encryption, IP allowlists, and SQL denylists.
Operational tools: The official site lists slow logs compatible with MySQL slow-log analysis tools, an Explain execution plan, and slow-query performance analysis reports.
Who it is for: DBLE is intended for teams replacing or scaling a single MySQL instance as business needs grow.
Support: The DBLE documentation lists community support resources and says commercial support is available by contacting the maker.
License and version: The repository identifies DBLE as GPL-2.0 licensed and the documentation branch as applying to version 3.23.08.x.
Price from: Free

Where it ranks on Freedom251

Best Database Proxy Software in 2026#9 of 30

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Sources

github.com/actiontech/dble· checked 4 Oct 2026
opensource.actionsky.com/dble/· checked 4 Oct 2026
actiontech.github.io/dble-docs-cn/· checked 4 Oct 2026
github.com/actiontech/dble-docs-cn· checked 4 Oct 2026