Apache POI

● Identity checked

Code · Vendor site 2026-10-04

Apache POI is the Java library for reading and writing Microsoft Office formats such as Excel, Word, and PowerPoint. The project site publishes release notes, component APIs, encryption support details, and download links for integrators building document automation.

Updated 2026-10-04View sources

Official website

Category: Code
Free access: POI is Apache-licensed open-source software available from poi.apache.org without subscription pricing.
API access: Component documentation covers Java APIs for HSSF, XSSF, HWPF, XWPF, and related Microsoft document formats.

Is Apache POI right for you?

A good fit for

Java developers generating reports, parsing spreadsheets, or automating Office documents in backend services.

Before you choose

POI runs in your JVM processes; complex Office features may require additional modules or format-specific limitations.

Java Office file APIs

Apache POI lets server-side Java apps create, modify, and extract data from Excel, Word, and PowerPoint files without COM automation.

What it can do

Features & capabilities

Unknown is different from unavailable. Each fact carries its own evidence.

Capability	Value	Evidence	Checked
Format coverage	Homepage title describes POI as the Java API for Microsoft Documents.	Facts sourced	2026-10-04
Recent release	News section announces POI 5.5.1 as an available release with updated dependencies.	Facts sourced	2026-10-04
Security features	Site navigation includes encryption and secure processing documentation for supported formats.	Facts sourced	2026-10-04

Understand the total cost

Apache POI pricing & plans

Free

POI is Apache-licensed open-source software available from poi.apache.org without subscription pricing.

Access: POI is Apache-licensed open-source software available from poi.apache.org without subscription pricing.

Explore pricing & history

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The practical questions

Frequently asked questions

What is Apache POI used for?

Does Apache POI have a free plan?

POI is Apache-licensed open-source software available from poi.apache.org without subscription pricing.. This record lists ongoing free access; check the plan limits before starting.

How much does Apache POI cost?

No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.

Can I use Apache POI through an API?

Component documentation covers Java APIs for HSSF, XSSF, HWPF, XWPF, and related Microsoft document formats.. API access and subscription access may have different terms; consult the linked sources.

What should I check before choosing it?

POI runs in your JVM processes; complex Office features may require additional modules or format-specific limitations.

Price history

No retained pricing changes yet. A current price alone does not establish a historical trend.

How this profile is supported

Identity and profile

Reviewed vendor source

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2026-10-04

Facts apply to the named version and check date. Send a sourced correction if something changed.