SIC! — Simple Image Converter

At a glance

• Editor score
  6.7 / 10
• Pricing
  Free plan
• Best for
  Simple free batch conversion on Windows
• Free plan
  Yes
• Paid from
  Free
• Batch conversion
  Yes
• Facts checked
  23 Sep 2026

• Where it wins

  • Batch-converts images to JPG, PNG, WebP, ICO, BMP, TIFF, GIF, and AVIF
  • Reads HEIC/HEIF input and supports resizing or exact-dimension cropping
  • Offers both a graphical interface and command-line conversion mode

• Where it doesn't

  • Runs on Windows only
  • Supports eight listed output formats, limiting format breadth
  • Desktop software only; no web app or API access

Our verdict on SIC! — Simple Image Converter

SIC! — Simple Image Converter is a free, open-source Windows desktop app for converting and resizing image files. It suits solo users and small teams that want a straightforward batch workflow, including people who need to convert HEIC/HEIF input or create multi-size ICO files. Images can be brought in from files, folders, the clipboard, drag-and-drop, or links, and converted files can be saved to a chosen location. The project also describes screen-reader-friendly labels and keyboard navigation, making accessibility part of the app’s stated interface design.

Its feature set reaches beyond format changes without becoming a general-purpose image editor. SIC! can resize while keeping proportions or crop to exact dimensions, and it offers both a graphical interface and command-line conversion mode. Portable mode stores application data alongside the executable. These options make it a practical fit for repeated local conversion tasks, including command-line workflows, while its scope remains focused on conversion and resizing. It is a desktop product for Windows rather than a web service, and it has no API access.

The project is free and open source, with the repository naming the Apache License 2.0 and pointing users to GitHub releases or installation through winget. That keeps the buying decision simple: there are no paid tiers to weigh, but users should check whether the listed inputs and outputs cover their workflow. Choose SIC! for free batch conversion on Windows, particularly when resizing, HEIC/HEIF input, or ICO output matters. Look elsewhere if you need a web-based converter, API access, or broader platform support.

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SIC! — Simple Image Converter pricing

SIC! — Simple Image Converter fact sheet

Alternatives to SIC! — Simple Image Converter

• XnConvertA broad local converter for automated batch workflows, with free noncommercial use.9.4
• ImageMagickA highly capable command-line converter for developers building automated image pipelines.9.2
• GGraphicsMagickA capable free converter for scripted, multi-file image workflows.8.9

See all SIC! — Simple Image Converter alternatives →

Featured on iTechGuides

SIC! — Simple Image Converter is listed in our Image Converter 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