18.3
Convertio is a browser-based file converter that handles more than 300 formats and more than 25,600 conversion types.
Free planAndroidiOSWeb
Best Image Converter Software in 2026
Changing file formats is only one image-conversion task; resizing, batch processing, and color mode changes may matter too. Compared on supported formats, batch conversion, image resizing, and color mode conversion, the entries can be assessed against the files and operations you handle. Access also varies: check whether you need a desktop application, web application, or API access. Aspose.Imaging, Convertio, and…
28.2
FreeConvert GIF Maker turns uploaded images into animated GIFs in a web browser.
Free planAndroidiOSWeb
38.2
Zamzar API is a REST-based HTTP service for integrating file conversion into mobile, web, or desktop applications.
Free planAndroidiOSWeb
- 4
Aspose.Imaging
Aspose.Imaging provides browser-based image conversion alongside APIs and cross-platform image-processing apps.
Free planAndroidiOSWebAPI8.1$999 one-time - 5
CloudConvert Audio Converter
CloudConvert Audio Converter converts audio files online through a web application, with API access for automated workflows.
Free planAndroidiOSWebAPI8.1From $10 a month - 6
XnConvert
XnConvert is a batch image converter for automating edits across photo collections on Windows, macOS, and Linux.
Free planAndroidLinuxmacOSWindows7.9€6.50 one-time - 7
ImageMagick
ImageMagick is a free, open-source software suite for creating, editing, converting, composing, and manipulating digital images.
Free planOpen sourceAPILinuxmacOSSelf-hosted7.5Free plan - 8
Converseen
Converseen is a free batch image processor for Windows, Linux, macOS, FreeBSD, and other operating systems.
Free planOpen sourceLinuxmacOSWindows7.3Free plan - 9
GraphicsMagick
GraphicsMagick is free software for image conversion, processing, and 2D vector rendering.
Free planOpen sourceAPILinuxmacOSSelf-hosted7.3Free plan - 10
BatchPhoto
BatchPhoto automates repeatable photo work, including resizing, converting, cropping, watermarking, date stamping, and renaming.
macOSWindows7.1$29.95 one-time - 11
reaConverter
reaConverter converts, edits, and automates batches of CAD, RAW, DICOM, 3D, PDF, and image files.
WebAPIExtensionWindows6.6From $49 a year - 12
ImageCool Converter
ImageCool Converter is a Windows desktop application for batch-converting, processing and viewing image files.
Free planWindows6.5$9.95 one-time - 13
Online-Convert GIF Converter
Online-Convert GIF Converter changes images from many formats into GIF files and can create animated GIFs from video clips.
WebAPIExtension6.5From €22.42 a month - 14
Quick Any2Ico
Quick Any2Ico is a portable Windows application for creating icon files from files, folders, and resources.
Free planWindows6.5$20 one-time - 15
Photopus
Photopus is Windows software for batch editing photos, with tools to convert, resize, rename, watermark, rotate, flip, crop, touch up, and apply…
Free planWindows6.4$19.95 one-time - 166.3$39.95 one-time
- 17
Ezgif
Free planWeb6.1Free plan - 18
GiliSoft Image Converter
Windows6.1From $29.95 a year - 19
ImageOptim
ImageOptim API is a service for optimizing images, with batch processing, resizing, and metadata controls.
API6.1From $12 a month - 20
Light Image Resizer
Light Image Resizer is a Windows app for resizing, compressing, and converting single images or batches.
Windows6.1$24.99 one-time - 21
Pillow
Pillow is a free Python library for opening, editing, and saving image files.
Free planLinuxmacOSWindows6.1Free plan - 22
Pixillion Image Converter
Pixillion Image Converter is a desktop application for converting image files between formats such as JPEG, PNG, GIF, PDF, BMP, RAW, PSD, ICO, and HEIC.
Free planmacOSWindows6.1Free plan - 23
6.0Free plan - 24
libvips
libvips is a free, open-source image-processing library built for demand-driven, horizontally threaded work with low memory use.
Free planLinuxmacOSSelf-hostedWindows6.0Free plan - 25
LocalPix
LocalPix is a free desktop app for converting image files between formats on macOS and Windows.
Free planmacOSWindows6.0Free plan