Velocity is a Java-based template engine that renders text output (HTML, email, configuration files, code and similar artifacts) by merging Velocity Template Language (VTL) templates with Java objects; it is designed to be embedded in Java applications rather than act as a web framework.
Published Oct 15, 2026
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| Aspect | Apache Velocity | Apache FreeMarker | Thymeleaf |
|---|---|---|---|
| Starting Price | Free / open-source (Apache License) | Free / open-source (Apache License) | Free / open-source (Apache License) |
| Typical Use | Embedded Java templating; legacy stacks; simple template logic | Broad Java templating; common alternative when replacing Velocity | HTML-centric server rendering; natural templates in many Java web apps |
| Key Strength | Simplicity and long history; widely understood concepts | Strong adoption and ongoing use; robust for text generation | HTML-friendly authoring model; popular with Spring MVC users |
| Key Weakness | Perception of declining relevance; historical sandbox/CVE concerns when misused | Some users report documentation discovery challenges for advanced usage | Performance and complexity critiques versus newer compiled engines (per community comparisons) |