From Querydsl to Spring Filter: One Syntax, Three Backends
Querydsl is one of those libraries that everyone used for years and then quietly stopped updating. The 5.0 release has been "coming soon" since 2019. The GitHub shows commits but no milestone. The issue tracker has a thread titled "Is Querydsl dead?" with hundreds of comments. It's not dead. But if you're starting a new project in 2026 and you're picking between Querydsl and something that's…
Querydsl and Spring Filter are two libraries that offer type-safe querying in Java applications. Querydsl has been around for years and pioneered type-safe querying, but it has been relatively stagnant since 2019 with no new major releases. On the other hand, Spring Filter is actively maintained, supports MongoDB, and generates OpenAPI docs automatically.
When comparing the two libraries, there are some key differences. Querydsl provides more advanced features such as SQL-level joins, subqueries, update and delete queries, and tuple projections without mapping to DTOs. It also has better type system support for complex object hierarchies. Spring Filter, however, offers MongoDB support with the same syntax, in-memory predicate filtering, and a database-agnostic AST.
If starting a new project in 2026, it's clear that Spring Filter is the better choice due to its active development, MongoDB support, and in-memory filtering capabilities. However, Querydsl still has its merits and deserves recognition for its pioneering work in type-safe querying. Ultimately, the decision between the two will depend on the specific requirements of the project.
Written by urgent.news from Dev.to's reporting — not their text. Machine-written — it may contain errors, so check the original before relying on it.
