Free and open first

Best Image converters in 2026

Image conversion services let you change image files using websites, APIs, phone apps, desktop programs, or browser add-ons. This list includes tools that run on web, API, Android, Windows, extension, and iOS platforms.

10 apps
How the order is worked out

1

Aspose.Imaging

Free plan AndroidAPIiPhone+5

Aspose.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.

7.7 Free plan Visit site
2

Convertio

Free plan AndroidAPIExtension+5

Convertio 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.

7.6 Free plan Visit site
3

CloudConvert Audio Converter

Free plan AndroidAPIExtension+2

CloudConvert combines audio conversion and adjustable output settings with batch processing, API access, and workflow integrations.

7.5 Free plan Visit site
4

FreeConvert GIF Maker

Free plan AndroidAPIiPhone+4

FreeConvert 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.

7.3 Free plan · paid from $12.99/mo Visit site
5

Zamzar API

Free plan AndroidAPIExtension+5

Choose Zamzar API if you need to add file conversion to an application and want broad format coverage, SDKs, and a free testing path.

7.2 Free plan · paid from $25/mo Visit site
6

reaConverter

Free plan APIExtensionWeb+1

reaConverter combines broad desktop format support with batch editing and automation, while its web option covers 149 formats on-device.

7.1 Free plan · paid from $75/user/yr Visit site
7

ConvertImage

Free plan Web

Choose ConvertImage for free, browser-based image conversion and a broad collection of editing tools, including favicon and ID photo creation.

7.0 Free plan Visit site
8

Ezgif

Free plan Web

Ezgif 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.

6.9 Free plan Visit site
9

Online-Convert GIF Converter

Free plan APIExtensionWeb

Online-Convert GIF Converter offers browser-based conversion with optional editing settings and workflow connections.

6.8 From €22.42/mo Visit site
10

Online Image Converter

Free plan Web

Online Image Converter provides a focused browser workflow for converting common image formats into LVGL-ready C arrays.

6.2 Free plan Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

Match the required formats and workflow to the platform you plan to use. Look at what each free plan or trial covers, note any published starting price for paid access, and inspect the licence when code needs to be read or modified.

Questions

Are free plans offered by image converters?

Image converters offer free and freemium pricing models with free plans. Check the terms for the tool you are considering.

Are image converters available for phones?

The list includes tools running on Android and iOS, along with web, Windows, API, and extension options.

Do any listed tools provide free trials?

Yes. Check the tool's listing for a free trial, then review its limits, duration, and any payment terms before starting.

Which converters publish starting prices?

The listed starting rates are $12.99 per month for FreeConvert GIF Maker, $25 per month for Zamzar API, $75 per user per year for reaConverter, and €22.42 per month for Online-Convert GIF Converter.

What should I check before choosing?

Compare platform support, free-plan or trial terms, pricing, required image workflow, and the software licence if code access matters.

Questions

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