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Best Image Converter Software in 2026
Image converter software is useful when you need to change formats, resize images, or convert batches of files. Compare supported formats with batch conversion, color mode conversion, and image resizing to see which listed capabilities match your work. Aspose.Imaging, XnConvert, and Converseen are among the options. Access also varies: check whether a desktop application, web application, or API access fits your workflow. Free-plan availability and paid-from pricing offer additional points of comparison. If you handle a mix of image types or need to process files in different ways, these details can help you narrow down the choices.
- 36 apps
- Research read 23 Sept 2026
- How the order is worked out
- 1
Converseen
Free plan Open source LinuxMacWindowsConverseen covers common batch image operations and a wide range of formats at no cost. Check the PDF dependency and macOS beta status before choosing it for those platforms.
- 2
GraphicsMagick
Free plan Open source APILinuxMac+2GraphicsMagick provides a broad set of image operations and format support at no cost. Some format capabilities and multi-threading depend on compatible external components or build conditions.
- 3
ImageMagick
Free plan Open source APILinuxMac+2ImageMagick offers broad image-processing tools for command-line workflows and software integrations, without a software charge.
- 4
Aspose.Imaging
Free plan AndroidAPIiPhone+5Aspose.Imaging combines a browser converter with APIs and a wide range of image-processing tools. Its per-operation file cap and temporary file availability are important considerations.
- 5
CloudConvert Audio Converter
Free plan AndroidAPIExtension+2CloudConvert combines audio conversion and adjustable output settings with batch processing, API access, and workflow integrations.
- 6
Convertio
Free plan AndroidAPIExtension+5Convertio combines broad file conversion with OCR, batch processing and cloud-based work. A free plan is available, while higher plan limits and priorities require paid subscriptions.
- 7
FreeConvert GIF Maker
Free plan AndroidAPIiPhone+4FreeConvert GIF Maker provides frame and output controls for creating GIFs through a browser. The free tier has daily and per-file limits, and the maker page sets a 1 GB maximum file size.
- 8
libvips
Free plan LinuxMacSelf-hosted+1libvips offers broad format and operation support for image-processing work, with interfaces for multiple languages and systems.
- 9
ConvertImage
Free plan WebChoose ConvertImage for free, browser-based image conversion and a broad collection of editing tools, including favicon and ID photo creation.
- 10
Cyan
Free plan LinuxMacWindowsCyan focuses on image conversion and profile handling for prepress work, with broad desktop operating-system support. Check its supported input and output formats against the files in your workflow.
- 11
Ezgif
Free plan WebEzgif offers a broad collection of browser tools for animation and basic video tasks. File retention and the lack of a supported API are worth noting when choosing it for a workflow.
- 12
Online-Convert GIF Converter
Free plan APIExtensionWebOnline-Convert GIF Converter offers browser-based conversion with optional editing settings and workflow connections.
- 13
reaConverter
Free plan APIExtensionWeb+1reaConverter combines broad desktop format support with batch editing and automation, while its web option covers 149 formats on-device.
- 14
Pillow
Free plan LinuxMacWindowsPillow offers Python image handling across common platforms, with a wide range of reading formats and editing operations.
- 15
ImageCool Converter
Free plan WindowsImageCool Converter combines broad format handling with batch conversion and image-processing tools on Windows. The free plan has a six-format export limit, while the paid plan costs $9.95, paid once.
- 16
ImageOptim
Free plan APIImageOptim provides API-centered optimization with flexible infrastructure options and clear monthly allowances.
- 17
LocalPix
Free plan MacWindowsLocalPix provides offline image conversion with broad format support and local processing.
- 18
XnConvert
Free plan AndroidLinuxMac+1XnConvert brings batch conversion, reusable presets, and folder monitoring together for photo collections. Company users should account for the license requirement and per-license pricing.
- 19
Zamzar API
Free plan AndroidAPIExtension+5Choose Zamzar API if you need to add file conversion to an application and want broad format coverage, SDKs, and a free testing path.
- 20
Light Image Resizer
Free plan WindowsLight Image Resizer combines batch image processing with file-management and output tools. Check the Windows requirements and license scope, and note that AVIF needs a plugin.
- 21
Pixillion Image Converter
Free plan MacWindowsChoose Pixillion if you want desktop format conversion with batch processing and basic image adjustments, and your use is non-commercial.
- 22
Photopus
Free plan WindowsPhotopus provides a wide set of batch editing tools, with a free edition and a one-time Pro price. Check edition-specific format access before choosing it, particularly for RAW and PDF workflows.
- 23
Sharp
Free plan APILinuxMac+2Sharp covers a broad set of image operations and formats, with asynchronous processing and multiple input methods.
- 24
Quick Any2Ico
Free plan WindowsChoose Quick Any2Ico if you need a Windows tool for creating or extracting icons, with batch and command-line options.
- 25
Universal Image Converter
Free plan WindowsChoose Universal Image Converter if you want a free Windows tool with both a graphical interface and command-line conversion.
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price