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Best Image Format Converter App

236+ iOS apps curated and reviewed

4.5 avg rating
18 free apps
Updated July 2026

Every iPhone needs a few good image format converter app apps. We benchmark 236+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Top Picks for Image Format Converter App

JPEG-PNG Image file converter#2

JPEG-PNG Image file converter by handyCloset Inc.

Format convertor to JPEG, PNG
Strong Contender
📷 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
JPG PNG Image, Photo Converter#3

JPG PNG Image, Photo Converter by Mostafa Monowar

Convert Compress Photos Format
Worth Considering
🔧 Utilities
4.5😞(1.5K ratings)
FreeAdsIn-App Purchases
JPG PNG Image, Photo Converter screenshot 1
JPG PNG Image, Photo Converter screenshot 2
JPG PNG Image, Photo Converter screenshot 3

Easily convert image file formats between JPEG/JPG and PNG, including HEIF (.heic) files. Save your work in just a few taps and ensure compatibility for printing. Images are saved to your iOS Photos app.

What We Love

  • 👍 Simple and easy to use
  • 💡 Allows transparent image conversion
  • 🚀 Efficient image conversion

Room to Improve

  • 🐛 Frequent crashes and bugs
  • 💸 Excessive advertisements
  • 🚫 Doesn't work as advertised

More Image Format Converter App apps to explore

4
Photos PDF : Scanner Converter
Photos PDF : Scanner Converter
Photos PDF : Scanner Converter
Photo & image to Scan Document
Free

Easily convert your photos and images into PDF documents in just three simple steps. This app offers a user-friendly interface, versatile editing options, and secure, on-device processing. Manage, sign, and share your PDFs effortlessly.

Image to PDF conversionUser-friendly designImage rotation and filters
📊 Productivity
(67K)
free with in-app purchases
5
CamScanner - PDF Scanner App
CamScanner - PDF Scanner App
CamScanner - PDF Scanner App
Сканер текста,фото,файлов PDF
Free

Transform your mobile device into a powerful portable scanner. Instantly scan, edit, and share documents in various formats like PDF, JPG, Word, and TXT. Features include OCR, e-signatures, and secure file management.

Mobile document scanningText recognition (OCR)PDF conversion
📊 Productivity
(1.8M)
free with in-app purchases
6
Image Converter: photos to PDF
Image Converter: photos to PDF
Image Converter: photos to PDF
Convert photo to jpeg png svg
Free

Easily convert your images into various popular formats, including PDF, JPEG, and PNG. Select files from your gallery, iCloud, or camera, choose your desired output, and convert in seconds. Access your conversion history and share files directly from the app.

Convert images to PDF, JPEG, PNG, SVGSupport for numerous image formatsSelect files from gallery, iCloud, or camera
📊 Productivity
(3.1K)
free with in-app purchases
7
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
8
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
9
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
10
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
11
Format Converter: Photo&Video
Format Converter: Photo&Video
Format Converter: Photo&Video
Media, Image&Audio Compressor
Free

This app offers a comprehensive suite of tools for converting and editing various media files, including videos, audio, images, and documents. It supports a wide range of formats and provides features like compression, trimming, and AI-powered vocal separation, transforming your mobile device into a multimedia workstation.

Video format conversionVideo compressionVideo editing (trimming, merging)
🔧 Utilities
(16)
free with in-app purchases
12
AllConvert Kit - Image & Video
AllConvert Kit - Image & Video
AllConvert Kit - Image & Video
Convert to PNG, GIF, PDF+more
Free

Easily convert your files to a wide range of formats including documents, ebooks, images, audio, and video. This app handles your media conversion needs quickly and securely, with files deleted from servers within 24 hours.

Document conversionEbook conversionImage conversion
🔧 Utilities
(1.3K)
free with in-app purchases
13
Image Size
Image Size
Image Size
Resize your photo! Resizer App
Free

Easily resize your photos to any dimension using pixels, millimeters, centimeters, or inches. Preserve aspect ratio with a simple tap and crop images with intuitive multitouch gestures. Save, email, print, or share your resized creations.

Resize images to custom dimensionsSupport for pixels, millimeters, centimeters, and inchesPreserve aspect ratio
📷 Photo & Video
(30K)
free with in-app purchases
14
Image Converter: JPEG PDF HEIC
Image Converter: JPEG PDF HEIC
Image Converter: JPEG PDF HEIC
Convert to JPG PNG & SVG File
Free

Easily convert images to over 20 formats like JPG, PNG, PDF, and SVG. This app offers a user-friendly interface for efficient media management, making it simple to prepare photos for professional use or sharing.

Convert to 20+ image formatsSupports JPEG, PNG, PDF, SVG, HEICUser-friendly interface
📊 Productivity
(9K)
subscription
15
Formats – Image Converter
Formats – Image Converter
Formats – Image Converter
Convert PDF and Images
Free

Easily convert a wide range of image and PDF file types to your desired output format. Access files from your photo albums or the Files app, select your output, and share or save your converted files. Conversion is processed securely in the cloud.

Supports JPG, GIF, BMP, SVG, TIFF, PNG, PSD, AI, ICNSAccess files from albums or iOS Files appSelect desired output format
📊 Productivity
(49)
free with in-app purchases
16
JPG Image Converter PNG/JPEG
JPG Image Converter PNG/JPEG
JPG Image Converter PNG/JPEG
Convert File Photos Compress
Free

Effortlessly convert and compress your photos into various formats like JPG, PNG, and PDF. This app allows you to resize images, maintain quality, and prepare them for sharing or storage.

Convert single or multiple imagesSupport for major image formatsBuilt-in photo editor
🔧 Utilities
(484)
subscription
17
Image-Format Converter
Image-Format Converter
Image-Format Converter
Convert to JPEG or PNG!
$1.99

Easily convert your images to JPEG or PNG formats. Supports a wide range of input file types and allows saving to your device or cloud services. Ideal for managing and sharing photos across different platforms.

Convert to JPEG or PNGSupports multiple input formats (JPG, TIFF, GIF, BMP, HEIC, etc.)Save to device or cloud services
🔧 Utilities
(1)
paid
18
HEIC to JPEG : image converter
HEIC to JPEG : image converter
HEIC to JPEG : image converter
convert photo to png gif jpeg
Free

Easily convert HEIC image files to widely compatible formats like JPG, PNG, and GIF. Supports batch conversions and offers quality customization. Perfect for viewing HEIC images on any device.

Convert HEIC to JPG/JPEGConvert to PNG, GIF, BMP, ICOBatch file conversion
📊 Productivity
(148)
free
19
Image Format Convert
Image Format Convert
Image Format Convert
Convert JPG to PNG
Free

Easily convert your images between popular formats like PNG, JPEG, TIFF, and BMP. This app provides image details such as format and size, saving your converted files in a personal folder for easy access.

Convert image formatsSupports PNG, JPEG, TIFF, BMPDisplays image format and size
📷 Photo & Video
(2)
free
20
Photo Converter - Pixvert
Photo Converter - Pixvert
Photo Converter - Pixvert
Convert Image to JPG Format
Free
🔧 Utilities
(0)