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Pingo review

Free#63 of 85 in Image Compression Software

A free Windows batch optimizer for PNG, JPEG, WebP, and APNG files.

3.1/10Editor score
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Pingo is a Windows command-line optimizer for web images, designed for people who need to process image files in batches rather than edit them visually. It supports PNG, JPEG, WebP, and APNG, making it suitable for web asset workflows that include several common formats. The tool provides both lossless and lossy processing, along with configurable optimization and quality levels. Its free pricing model applies to exclusive private use under its stated license.

For batch work, Pingo focuses on practical controls rather than a broad editing environment. Folder and wildcard processing let users select groups of files, while WebP output generation supports workflows that want to create WebP assets from source images. JPEG processing is included alongside PNG, WebP, and APNG support, so the tool can cover a mixed asset collection. Metadata handling and preservation controls add a choice over how image metadata is treated during optimization.

Pingo is a strong fit for Windows users who are comfortable with command-line tools and want free batch optimization with both lossless and lossy modes. It is also a focused option when configurable quality and optimization levels matter more than a graphical interface. The main boundaries are its Windows-only availability and its license terms: free distribution is limited to exclusive private usage, with repackaging, redistribution, reselling, and reuse through another service prohibited. Users needing a visual workflow, broader platform support, or service-based reuse should choose an alternative instead.

Pingo pros and cons

  • Where it wins
    • Supports lossless and lossy optimization across four image formats
    • Processes folders and wildcard-selected files in batches
    • Offers quality, optimization, WebP output, and metadata controls
  • Where it doesn't
    • Windows-only platform support
    • Command-line workflow may not suit visual editing needs
    • Free use is limited to exclusive private usage under its license

Pingo fact sheet, pricing and score →

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