Free and open first

Best File Converter Software in 2026

29 apps
Research read 28 Sept 2026
How the order is worked out

1

Converseen

Free plan Open source LinuxMacWindows

Converseen 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.

9.0 Free plan Visit site
2

ImageMagick

Free plan Open source APILinuxMac+2

ImageMagick offers broad image-processing tools for command-line workflows and software integrations, without a software charge.

8.8 Free plan Visit site
3

AnyConv

Free plan AndroidiPhoneLinux+3

AnyConv offers broad format support and browser-based conversion without a registration requirement on its free plan.

7.6 Free plan Visit site
4

CloudConvert Audio Converter

Free plan AndroidAPIExtension+2

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

7.6 Free plan Visit site
5

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.

7.5 Free plan Visit site
6

Aconvert

Free plan AndroidWeb

Aconvert covers many file types and offers both an online converter and Android apps at no charge. Check the listed upload limits if using the web service, and note that no REST API is available.

7.4 Free plan Visit site
7

Adapter
by Adapter
Free plan MacWindows

Choose Adapter if you want free desktop conversion for video, audio, or image files, with batch processing and editing options.

7.4 Free plan Visit site
8

FFmpeg

Free plan LinuxMacSelf-hosted+1

FFmpeg provides broad media conversion and streaming capabilities across desktop platforms, with hardware acceleration options.

7.3 Open source Visit site
9

AVS Document Converter

Free plan Windows

AVS Document Converter covers format conversion, e-book export, document controls and batch workflows on Windows.

7.2 Free plan · paid from $149/yr Visit site
10

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.

7.2 Free plan · paid from $12.99/mo Visit site
11

ConvertFiles

Free plan Web

ConvertFiles offers a broad format range and a simple upload-and-download workflow at no listed charge.

7.1 Free plan Visit site
12

Doxillion Document Converter

Free plan MacWindows

Doxillion combines broad format conversion with batch processing, OCR, and basic PDF tools. Note the narrower PDF-to-Word behavior and format-specific limits before choosing it.

7.1 Free plan Visit site
13

Freemake Video Converter

Free plan AndroidMacWindows

Freemake combines broad format conversion with video editing, audio extraction, and disc tools. The free license has no expiration, but the logo and missing premium features are worth considering.

7.1 Free plan Visit site
14

MConverter

Free plan AndroidAPIExtension+5

MConverter covers a broad range of file conversions, with folder input, cloud file selection and an API for automated workflows.

7.1 Free plan Visit site
15

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
16

FileZigZag Audio Converter

Free plan APIWeb

FileZigZag offers broad online conversion coverage with anonymous public use and a free registered tier.

7.0 Free plan Visit site
17

HandBrake
by HandBrake
Free plan LinuxMacWindows

HandBrake offers broad video format and codec support without a listed charge. Its scope is video transcoding, so audio extraction is not included.

7.0 Free plan Visit site
18

Shutter Encoder

Free plan LinuxMacWindows

Shutter Encoder covers conversion, editing, and analysis across video, audio, and image workflows, without a listed fee.

6.9 Free plan Visit site
19

Switch Audio File Converter

Free plan AndroidMacWindows

Switch offers basic conversion and compression in a non-expiring free version, with a 14-day trial of Plus features.

6.9 Free plan Visit site
20

XnConvert

Free plan AndroidLinuxMac+1

XnConvert brings batch conversion, reusable presets, and folder monitoring together for photo collections. Company users should account for the license requirement and per-license pricing.

6.9 Free plan · paid from €29 Visit site
21

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.

6.9 Free plan · paid from $25/mo Visit site
22

Format Factory
by Format Factory
Free plan Windows

Format Factory covers a wide range of conversion and file-processing tasks, with batch conversion and output up to 4K. The listed software is for Windows, and its official PC functions are free.

6.8 Free plan Visit site
23

Prism Video Converter
by Prism Video Converter
Free plan MacWindows

Choose Prism if you need a Windows or macOS converter with batch processing, audio extraction, editing tools, and a broad set of output formats.

6.8 Free plan · 14-day trial Visit site
24

XMedia Recode

Free plan Windows

Choose XMedia Recode if you use Windows and need its listed video or audio conversion functions, batch processing, or audio extraction at no charge.

6.5 Free plan Visit site
25

ClipConverter

Free plan WebWindows

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

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