pillow-jxl-plugin
Pillow plugin for JPEG-XL, using Rust for bindings.
Decision gist · record as of 2026-08-14
Yes, if you need JXL support in Pillow and your platform has a compatible wheel. The package is actively maintained, has no known vulnerabilities, and integrates seamlessly with Pillow's standard API. The main caveat is the unclear license status—verify the repository's license before use in proprietary projects. Install friction is moderate due to compiled bindings, but wheels cover most common environments.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires pillow and packaging as runtime dependencies; Rust toolchain needed only when building from source.
- Medium install friction due to compiled Rust bindings; wheels are available for Python 3.10–3.13 on Windows, macOS, and Linux (manylinux/musllinux), but not all platform combinations are covered.
- Actively maintained with a recent release.
License · maintenance · safety
(unclear) — License status is unclear; no SPDX identifier or raw license text is declared in the package metadata. Verify the actual license terms in the repository before use in proprietary or restricted contexts.
last release 2026-07-17 (28 days) · last repo commit 2026-07-20 · 61 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 215,553 downloads/mo, #9,398 on PyPI
Alternatives
Verify before relying
import pillow_jxl
from packaging import version
# After import, use standard image operations
# with Image.open("example.png") as img:
# img.save("example.jxl", lossless=True)- Actual license terms (no SPDX or raw license metadata provided)
- Performance characteristics and stability guarantees across versions
- Whether EXIF metadata encoding works reliably across all supported platforms
What it is and what it does
pillow-jxl-plugin is a Pillow plugin that adds JPEG-XL (JXL) codec support via Rust bindings to libjxl. Once imported, it registers itself with Pillow and enables reading and writing JXL images through the standard image interface. The plugin supports both lossless encoding and lossy encoding with quality parameters, and can preserve EXIF metadata during encoding.
It depends on pillow and packaging, and is distributed as pre-compiled wheels for Python 3.10–3.13 across Windows, macOS, and Linux platforms (manylinux and musllinux). Some platform–interpreter combinations lack wheels and require building from source, which needs Rust installed.
Use it for
- Convert PNG or JPEG images to JXL format for better compression while preserving quality or lossless fidelity.
- Read JXL images in image processing pipelines that already use Pillow without learning a separate API.
- Batch-transcode image collections to JXL as part of web asset optimization workflows.
- Encode images with EXIF metadata intact when switching to JXL in photo management applications.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need JXL support in Pillow and your platform has a compatible wheel.
The package is actively maintained, has no known vulnerabilities, and integrates seamlessly with Pillow's standard API. The main caveat is the unclear license status—verify the repository's license before use in proprietary projects. Install friction is moderate due to compiled bindings, but wheels cover most common environments.
Install
pillow-jxl-plugin on PyPI
Before you install
Medium install friction due to compiled Rust bindings; wheels are available for Python 3.10–3.13 on Windows, macOS, and Linux (manylinux/musllinux), but not all platform combinations are covered. Actively maintained with a recent release.
Requires pillow and packaging as runtime dependencies; Rust toolchain needed only when building from source.
License in practice
License status is unclear; no SPDX identifier or raw license text is declared in the package metadata. Verify the actual license terms in the repository before use in proprietary or restricted contexts.
Quickstart
import pillow_jxl
from packaging import version
# After import, use standard image operations
# with Image.open("example.png") as img:
# img.save("example.jxl", lossless=True)Verify before relying
- Actual license terms (no SPDX or raw license metadata provided)
- Performance characteristics and stability guarantees across versions
- Whether EXIF metadata encoding works reliably across all supported platforms
Package facts
| License | Not declared unclear |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Medium. Platform-specific wheel |
| Runtime dependencies | 2 packagespackagingpillow |
| Maintenance | Actively maintained 28 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 215,553 / month, #9,398 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Programming Language :: Python :: Implementation :: CPythonProgramming Language :: Python :: Implementation :: PyPyProgramming Language :: Rust |
Evidence: pillow_jxl_plugin-1.3.8-cp310-cp310-macosx_10_12_x86_64.whl; pillow_jxl_plugin-1.3.8-cp310-cp310-macosx_11_0_arm64.whl; pillow_jxl_plugin-1.3.8-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl; pillow_jxl_plugin-1.3.8-cp310-cp310-manylinux_2_17_i686.manylinux2014_i686.whl; pillow_jxl_plugin-1.3.8-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl; pillow_jxl_plugin-1.3.8-cp310-cp310-musllinux_1_2_aarch64.whl; pillow_jxl_plugin-1.3.8-cp310-cp310-musllinux_1_2_armv7l.whl; pillow_jxl_plugin-1.3.8-cp310-cp310-musllinux_1_2_i686.whl; pillow_jxl_plugin-1.3.8-cp310-cp310-musllinux_1_2_x86_64.whl; pillow_jxl_plugin-1.3.8-cp310-cp310-win32.whl; pillow_jxl_plugin-1.3.8-cp310-cp310-win_amd64.whl; pillow_jxl_plugin-1.3.8-cp311-cp311-macosx_10_12_x86_64.whl; pillow_jxl_plugin-1.3.8-cp311-cp311-macosx_11_0_arm64.whl; pillow_jxl_plugin-1.3.8-cp311-cp311-manylinux_2_17_aarch64.manylinux2014_aarch64.whl; pillow_jxl_plugin-1.3.8-cp311-cp311-manylinux_2_17_i686.manylinux2014_i686.whl; pillow_jxl_plugin-1.3.8-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl; pillow_jxl_plugin-1.3.8-cp311-cp311-musllinux_1_2_aarch64.whl; pillow_jxl_plugin-1.3.8-cp311-cp311-musllinux_1_2_armv7l.whl; pillow_jxl_plugin-1.3.8-cp311-cp311-musllinux_1_2_i686.whl; pillow_jxl_plugin-1.3.8-cp311-cp311-musllinux_1_2_x86_64.whl
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