jpegoptim

At a glance

• Editor score
  4.4 / 10
• Pricing
  Free plan
• Best for
  Automated JPEG-focused compression
• Free plan
  Yes
• Paid from
  Free
• Compression modes
  Both
• Facts checked
  20 Sep 2026

• Where it wins

  • Supports both lossless optimization and lossy recompression
  • Processes batches and parallel workers for automated workflows
  • Offers target-size control and metadata handling options

• Where it doesn't

  • Focused on JPEG and JFIF rather than broad image-format support
  • Command-line workflow may not suit users seeking a graphical interface
  • Does not provide resizing, hosted uploads, or AI features

Our verdict on jpegoptim

jpegoptim is a free, open-source command-line utility for optimizing JPEG and JFIF files. It is intended for developers, system administrators, and automated image-processing workflows on Windows, macOS, and Linux. The tool covers both lossless optimization through Huffman-table optimization and lossy recompression with configurable maximum quality or target-size settings, making it suitable for reducing file sizes while retaining control over output quality.

For batch-oriented work, jpegoptim supports multiple files, file lists, configurable parallel workers, and standard-input and standard-output processing. These capabilities fit shell scripts, build processes, and other local automation where repeatable file handling matters. Progressive and non-progressive JPEG conversion adds control over JPEG output modes, while metadata preservation and selective marker stripping help define what information remains in the optimized files. The result is a focused utility for workflows that need file-based processing rather than a hosted upload service.

Its narrow format focus is also the main boundary. jpegoptim is built around JPEG and JFIF, so teams handling other image formats will need a separate tool or workflow. It is a command-line utility rather than a graphical application, which makes it a stronger fit for technical users and automation than for occasional manual editing. Choose jpegoptim when free, local, scriptable JPEG compression is the priority, especially when batch processing, target sizes, metadata controls, or parallel execution are important. Look elsewhere when resizing, AI features, or a broader image-format workflow is central.

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jpegoptim pricing

jpegoptim fact sheet

Alternatives to jpegoptim

• TinyPNGA flexible compressor for web workflows, batch processing, and automated image pipelines.9.3
• OptimoleA strong WordPress-focused optimizer for responsive images, modern formats, and CDN delivery.9.2
• TThumborA self-hosted image service with URL transformations, smart cropping, and format selection.9.1

See all jpegoptim alternatives →

Featured on iTechGuides

jpegoptim is listed in our Image Compression Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update