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Best File Format Converter Apps

234+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated June 2026

Out of 234+ file format converter apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for File Format Converter

JPEG-PNG Image file converter#1

JPEG-PNG Image file converter by handyCloset Inc.

Format convertor to JPEG, PNG
Editor's Choice
📷 Photo & Video
4.7😊(17K ratings)
FreeAds
JPEG-PNG Image file converter screenshot 1

Easily convert your images to JPEG or PNG format. This lightweight application supports a wide range of input formats, including HEIF/HEIC, and saves converted files directly to your device's Photos app. It's ideal for preparing images for printing or ensuring compatibility.

What We Love

  • 🚀 Fast and seamless conversion
  • 👍 Simple and user-friendly
  • 💡 Helpful for various use cases (forums, digital planning, etc.)
  • 🥰 Great app overall

Room to Improve

  • 🐛 Can only convert one image at a time
  • 💸 Aggressive ads that can be intrusive
  • 🔒 Requires full photo library access, raising privacy concerns
Documents: File Manager & Docs#2

Documents: File Manager & Docs by Readdle Technologies Limited

Converter. Downloader. Reader.
Strong Contender
📊 Productivity
4.8😊(617K ratings)
FreeAdsIn-App Purchases
#52in Productivity
Documents: File Manager & Docs screenshot 1
Documents: File Manager & Docs screenshot 2
Documents: File Manager & Docs screenshot 3
Documents: File Manager & Docs screenshot 4
Documents: File Manager & Docs screenshot 5
Documents: File Manager & Docs screenshot 6

This app is a comprehensive file manager and document editor for mobile devices. It allows users to organize, edit, convert, and annotate various file types, including PDFs, Office documents, and audio/video files. It also features transcription, scanning, and cloud integration.

What We Love

  • 💯 Excellent file management capabilities
  • 🚀 Seamless integration with cloud services
  • 📚 Versatile document viewer and editor
  • 🎵 Reliable offline music player

Room to Improve

  • 🐛 Occasional crashes and bugs
  • 🔒 Concerns over in-app subscription model
  • 🔍 Inconsistent search and file management functionality
Acrobat Reader: PDF Editor#3

Acrobat Reader: PDF Editor by Adobe Inc.

Documents Editor & Converter
Worth Considering
💼 Business
4.7😞(628K ratings)
FreeAdsIn-App Purchases
#2in Business
Acrobat Reader: PDF Editor screenshot 1
Acrobat Reader: PDF Editor screenshot 2
Acrobat Reader: PDF Editor screenshot 3
Acrobat Reader: PDF Editor screenshot 4
Acrobat Reader: PDF Editor screenshot 5
Acrobat Reader: PDF Editor screenshot 6

This app is a powerful PDF tool for viewing, editing, annotating, and signing documents. It offers AI-powered features for summarizing and interacting with PDFs, along with robust conversion and security options. Collaborate on files and access your documents from anywhere.

What We Love

  • 🚀 Fast and efficient
  • 🔒 Secure document storage
  • 👍 Convenient for reading and annotating PDFs
  • 👍 Useful for students and professionals

Room to Improve

  • 🐛 Buggy and unreliable
  • 🔒 Overly intrusive login requirements
  • 💰 Expensive subscription model

More File Format Converter apps to explore

4
Picture Converter: File Format
Picture Converter: File Format
Picture Converter: File Format
Imazing HEIC,JPG,PDF converter
Free

Easily convert image files to JPEG or PNG formats. Share converted images directly via Airdrop or save them within the app. Supports a wide range of popular image and document formats.

Convert image formats to JPEG/PNGSupports HEIC, JPG, PNG, GIF, BMP, PDFShare via Airdrop
🌟 Lifestyle
(60)
subscription
5
File Converter to the Formats
File Converter to the Formats
File Converter to the Formats
Convert video image audio pdf
Free

Easily convert various file types, including images, videos, audio, and documents, into numerous desired formats. All conversions are processed securely on your device, ensuring your files remain private. Offers flexible input options and comprehensive format support.

Convert images to various formats and PDFConvert audio files to different audio formatsConvert video files to audio or image formats
📷 Photo & Video
(504)
subscription
6
Media File Format Converter
Media File Format Converter
Media File Format Converter
Convert Photo Video Audio File
Free
🔧 Utilities
(0)
7
MP3 Converter -Audio Extractor
MP3 Converter -Audio Extractor
MP3 Converter -Audio Extractor
Convert video file to ringtone
Free

This app transforms video files into MP3 audio, allowing you to listen to your favorite content offline. It offers a range of editing tools, including clippers, splicers, and denoising, to refine your audio. You can also set converted audio as ringtones and share files easily.

Convert video to MP3Fast and easy to useSupports multiple video/audio formats
🎵 Music
(45K)
free with in-app purchases
8
iConv - Video & PDF Converter
iConv - Video & PDF Converter
iConv - Video & PDF Converter
Convert any Video Audio Format
Free

This app facilitates a wide range of file conversions, including video, audio, documents, and images. It offers features like batch processing, OCR for text extraction from images, and file compression/decompression. Users can also trim media and manage files directly within the app.

Batch video and audio conversionDocument to PDF/PNG conversionImage to TXT (OCR)
📷 Photo & Video
(1.9K)
freemium
9
Convert-File&Image&Music&Media
Convert-File&Image&Music&Media
Convert-File&Image&Music&Media
Convert files to any format
Free
🔧 Utilities
(0)
10
JPEG,PNG Image file converter
JPEG,PNG Image file converter
JPEG,PNG Image file converter
Format convertor to JPEG, PNG
$2.99

Easily convert your images to JPEG or PNG formats. This ad-free application supports a wide range of input formats, including HEIF/HEIC, and saves converted files directly to your device's Photos app.

Convert to JPEG or PNGSupports HEIF/HEIC conversionSaves to Photos app
📷 Photo & Video
(560)
paid
11
Imogo: File & Format Converter
Imogo: File & Format Converter
Imogo: File & Format Converter
by Umit UZ
Free
🔧 Utilities
(0)
12
The Image Converter □
The Image Converter □
The Image Converter □
Convert JPG, PNG, HEIC, PDF
Free

Easily transform your photos and documents into a wide range of image formats. Select your input, choose an output, and convert in seconds. Save, share, or open your converted files directly in other applications.

Convert to SVG, JPG, PNG, GIF, and moreSupports dozens of input formats including HEIC and PDFFast cloud-based conversions
📊 Productivity
(16K)
free with in-app purchases
13
MP3 Converter - Convert to MP3
MP3 Converter - Convert to MP3
MP3 Converter - Convert to MP3
Audio Converter & Extracter
Free

Easily convert media files to a wide range of audio formats. Extract audio from videos and transfer files wirelessly. Offers advanced settings for audio customization.

Convert to any audio formatExtract audio from videoTransfer audios via Wi-Fi
🔧 Utilities
(660)
freemium
14
MP4 Maker - Convert to MP4
MP4 Maker - Convert to MP4
MP4 Maker - Convert to MP4
Convert videos to MP4 format
Free

Easily convert video files to MP4 format directly on your device. This app prioritizes your privacy by processing all conversions locally, ensuring your files never leave your phone. Customize quality settings to balance file size and image resolution.

Convert videos to MP4Local device processingExport converted files
📊 Productivity
(2.2K)
free with in-app purchases
15
PDF Editor・PDF File Converter
PDF Editor・PDF File Converter
PDF Editor・PDF File Converter
PDF Scanner, Filler and Signer
Free

Easily scan, convert, edit, and manage your PDF documents. This all-in-one tool allows you to transform images to PDF, convert PDFs to Word, fill out forms, and add digital signatures.

Edit text, fonts, and colors in PDFsConvert images and documents to PDFScan paper documents into high-quality PDFs
📊 Productivity
(151)
free with in-app purchases
16
PDF Editor ®
PDF Editor ®
PDF Editor ®
Edit, Reader Converter Maker 7
Free

Edit, sign, and convert PDF documents directly from your mobile device. Scan physical papers into editable PDFs, annotate text, and fill out forms on the go. All your documents are stored locally for privacy and can be easily shared.

Edit PDF filesSign documentsConvert scanned papers to PDF
💼 Business
(28K)
free with in-app purchases
17
File Converter - LocalConvert
File Converter - LocalConvert
File Converter - LocalConvert
Image to PDF & Format Changer
Free
$2.99 | 100% OFF
🔧 Utilities
(0)
18
Format Output: PDF & File Edit
Format Output: PDF & File Edit
Format Output: PDF & File Edit
PDF & Video & Audio Convert
Free

Easily convert and manage your files, including PDFs, videos, and audio. Organize converted files into folders for improved efficiency. Download, delete, and share your processed documents and media.

File conversion (PDF, video, audio, image)Format selectionFile naming
🌟 Lifestyle
(45)
free
19
Formattery: File Converter
Formattery: File Converter
Formattery: File Converter
Pay Once. Convert Everything.
Free

This app converts a wide range of file types, including images, documents, videos, and audio, directly on your device. It offers batch conversion, adjustable quality settings, and a preview feature. Image conversions are free, with a one-time purchase to unlock additional formats.

100% offline conversionBatch conversionAdjustable quality settings
🔧 Utilities
(4)
free with in-app purchases
20
ConvertCenter
ConvertCenter
ConvertCenter
Convert Doc,Images,Video,Audio
Free
📊 Productivity
(0)

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