1. Home
  2. Topics
  3. Image Size Converter

Best Image Size Converter Apps

242+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated July 2026

If you already know Image Size, this is the deeper bench. 242+ image size converter apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of July 2026.

Compare top Image Size Converter Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Image SizeImage SizeFree4.7★ (30K)YesYesAug 2026
2Compress Photos & PicturesCompress Photos & PicturesFree4.7★ (22K)YesYesAug 2026
3Photo Resizer: resize imagePhoto Resizer: resize imageFree4.7★ (652)YesYesAug 2026
4Image Converter: JPEG PDF HEICImage Converter: JPEG PDF HEICFree4.7★ (9K)NoYesAug 2026
5The Image Converter □The Image Converter □Free4.6★ (17K)NoYesAug 2026
6Resize ImageResize ImageFree4.6★ (1K)YesYesAug 2026
7Image resizer, converter iSizeImage resizer, converter iSizeFree4.6★ (133)NoYesAug 2026
8Image Size - Photo CompressImage Size - Photo CompressFree4.4★ (473)YesYesJul 2026

Top Picks for Image Size Converter

Image Size#1

Image Size by Vitalij Schaefer

Resize your photo! Resizer App
Editor's Choice
📷 Photo & Video
4.7😊(30K ratings)
FreeAdsIn-App Purchases
Image Size screenshot 1
Image Size screenshot 2
Image Size screenshot 3
Image Size screenshot 4
Image Size screenshot 5
Image Size screenshot 6

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.

What We Love

  • 🚀 Straightforward and easy to use
  • 👍 Intuitive user interface
  • 🚀 Quick resizing and editing
  • 💡 Useful features like watermarking and cropping

Room to Improve

  • 🐛 Occasional issues with image quality after resizing
  • 🔍 Unclear interface for some advanced features
  • 💰 Paid version required to remove ads
Compress Photos & Pictures#2

Compress Photos & Pictures by New Marketing Lab, Inc

Compress photos, save space
Strong Contender
📷 Photo & Video
4.7😐(22K ratings)
FreeAdsIn-App Purchases
Compress Photos & Pictures screenshot 1
Compress Photos & Pictures screenshot 2
Compress Photos & Pictures screenshot 3
Compress Photos & Pictures screenshot 4
Compress Photos & Pictures screenshot 5

Reduce the file size of your photos and reclaim storage space on your device. This app offers intelligent compression to maintain image quality while significantly shrinking files for faster sharing and easier storage. It supports various file types and offers advanced tools for privacy and export.

What We Love

  • 👍 Easy to use
  • 🚀 Effective compression
  • 💡 Useful for reducing photo file size
  • 🚀 Fast processing

Room to Improve

  • 🐛 Compression issues (photos look distorted or washed out)
  • 🐛 Crashes or freezes during batch processing
  • 🔍 Difficult to find compressed photos in library
Photo Resizer: resize image#3

Photo Resizer: resize image by Ryoichi Fukugawa

Reduce photo & picture size
Worth Considering
📷 Photo & Video
4.7😊(652 ratings)
FreeAdsIn-App Purchases
Photo Resizer: resize image screenshot 1
Photo Resizer: resize image screenshot 2
Photo Resizer: resize image screenshot 3
Photo Resizer: resize image screenshot 4
Photo Resizer: resize image screenshot 5

Easily reduce the resolution and file size of your photos with just a few taps. This tool is perfect for optimizing images for email attachments or saving storage space.

What We Love

  • 🚀 Fast and efficient
  • 👍 Easy to use
  • 💡 Helpful for work and presentations
  • 🚀 Simple and straightforward

Room to Improve

  • 🐛 Unclear measurement units
  • 🐛 Issues with file format and quality
  • 🐛 Lack of EXIF data preservation

More Image Size Converter apps to explore

4
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
5
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
(17K)
free with in-app purchases
6
Resize Image
Resize Image
Resize Image
Photo Resizer
Free

Easily resize photos to any desired dimensions with this intuitive application. Select images, choose from presets or create your own custom sizes using pixels, inches, millimeters, or centimeters. Supports batch resizing and seamless saving or sharing.

Resize photos to custom dimensionsCreate custom resize presetsSupports pixels, inches, mm, and cm
🔧 Utilities
(1K)
free with in-app purchases
7
Image resizer, converter iSize
Image resizer, converter iSize
Image resizer, converter iSize
Photo resize, crop, fit, print
Free

This app allows you to precisely resize, crop, and transform photos. It supports batch processing, metadata editing, and exporting in various formats and sizes, making it ideal for social media, printing, and graphic design.

Advanced resizing modesBatch processingExport in multiple sizes
🎨 Graphics & Design
(133)
free with in-app purchases
8
Image Size - Photo Compress
Image Size - Photo Compress
Image Size - Photo Compress
Photo resize and compress
Free

Easily resize and compress your photos with simple operations. Lighten images individually or in batches, preview changes, and check quality and size before saving. Supports JPEG and PNG formats, and integrates with email and other apps for seamless sharing.

Resize and compress imagesBatch processingPreview resized images
📷 Photo & Video
(473)
free with in-app purchases
9
Compress image size in kb
Compress image size in kb
Compress image size in kb
Resize Pictures & Reduce size
Free

Easily resize photos to reduce file size for sharing via email, social media, or web forms. Maintain image quality and aspect ratio while customizing dimensions or choosing presets. Optimize images for various platforms and manage storage space effectively.

Batch resizing of multiple photosPreserve original quality and aspect ratioCustomizable resolutions and aspect ratios
📷 Photo & Video
(1)
free with in-app purchases
10
Photo Compress - Shrink Pics
Photo Compress - Shrink Pics
Photo Compress - Shrink Pics
Reduce image size & save space
Free

Reduce the size of your photos to save storage space on your device. Compress images in batches, adjust quality, and resize them for easier sharing. Convert HEIC files to JPEG for broader compatibility.

Batch photo compressionAdjust JPEG compression levelOptional image resizing
📷 Photo & Video
(3.5K)
free with in-app purchases
11
Adobe Scan: PDF & OCR Scanner
Adobe Scan: PDF & OCR Scanner
Adobe Scan: PDF & OCR Scanner
Text Document, Photo Converter
Free

Transform your mobile device into a powerful document scanner. Easily convert paper documents, receipts, and IDs into professional-looking PDFs or JPEGs. Enhance scans with automatic straightening, stain removal, and editable text conversion.

High-speed bulk scanningConvert paper to PDF/JPEGAutomatic straightening
💼 Business
(1.6M)
free with in-app purchases
12
DPI - Dots per inch
DPI - Dots per inch
DPI - Dots per inch
Change DPI value of an image
Free

Easily modify the DPI (dots per inch) of your images. Save, share, email, or print your adjusted photos with new DPI values.

Change image DPISave modified imageShare image
📷 Photo & Video
(1.1K)
free with in-app purchases
13
Reduce image size - Resizer
Reduce image size - Resizer
Reduce image size - Resizer
Best image resizer, compressor
Free

Easily resize and compress images and videos to optimize file sizes for sharing or storage. Supports batch processing, various formats, and offers customizable settings for quality and dimensions.

Image resizingImage compressionVideo resizing
🛠️ Developer Tools
(72)
free with in-app purchases
14
Size Image
Size Image
Size Image
image resize
Free

This app quickly resizes images to 480x640 pixels without an internet connection. It offers a simple interface for selecting and adjusting photos, supporting both JPG and PNG exports. Batch processing is also available for efficient image handling.

Resize images to 480x640 pixelsOffline image processingEasy-to-use interface
📷 Photo & Video
(65)
free
15
Resize: Photo Video Compress
Resize: Photo Video Compress
Resize: Photo Video Compress
Reduce image size save storage
Free

Easily reduce the file size of your photos and videos without sacrificing quality. This app offers powerful compression and resizing tools to free up storage space. Save, replace, or share your optimized media with ease.

Image compressionVideo compressionImage resizing
📷 Photo & Video
(1.8K)
freemium
16
Currency converter calculator!
Currency converter calculator!
Currency converter calculator!
Exchange rates USD
Free

This app provides real-time exchange rates for all world currencies, including cryptocurrencies, and functions offline. It features an embedded calculator, the ability to set custom rates, and updates hourly. An optional premium version removes ads and offers additional features.

All world currenciesOffline functionalityCryptocurrency support
✈️ Travel
(70K)
free with in-app purchases
17
Resize it - compress any image
Resize it - compress any image
Resize it - compress any image
Change pics size, aspect ratio
Free

This app helps you free up device storage by compressing and resizing images without significant quality loss. It supports batch processing and various popular formats, making it easy to manage your photo library and share files faster.

Compress and resize imagesBatch processing up to 20 imagesSave disk space without quality loss
📷 Photo & Video
(859)
free
18
Easy Photo Compressor: Resize
Easy Photo Compressor: Resize
Easy Photo Compressor: Resize
Reduce Image Size & Save Space
Free

Effortlessly resize and compress your images to save storage space. Convert between various file formats, remove location data, and adjust image quality. Easily manage and share your modified photos.

Resize multiple photosConvert file formats (JPEG, HEIC, PNG, WebP, TIFF, AVIF)Delete location and EXIF data
📷 Photo & Video
(255)
free with in-app purchases
19
Image Converter·
Image Converter·
Image Converter·
HEIC, JPG, PNG, PDF Converter
Free

Transform your photos into various formats like JPG, PNG, HEIC, and PDF. This app allows for batch conversions without quality loss, with adjustable compression. Easily save and share your converted files to any device.

Convert photos to JPG, PNG, HEIC, PDFBatch image selectionAdjustable compression quality
🎨 Graphics & Design
(619)
free with in-app purchases
20
JPEG-PNG Image file converter
JPEG-PNG Image file converter
JPEG-PNG Image file converter
Format convertor to JPEG, PNG
Free

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.

Convert to JPEG or PNGSupports HEIF/HEIC conversionSaves to Photos app
📷 Photo & Video
(17K)
ad-supported

FAQ about Image Size Converter

What are the best image size converter apps for iPhone?
Image Size tops our image size converter apps ranking as of July 2026, with a 4.7-star average from 30K App Store ratings, and it's free to download.
Yes — 20 of the top image size converter apps we rank are free to download, including Image Size and Compress Photos & Pictures.
Image Size shows ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 242+ image size converter apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
This app allows you to resize your photos to a custom size. You can specify the output dimensions using units like pixels, millimeters, centimeters, or inches. It also offers features for cropping, saving, emailing, printing, and sharing your resized images.
To preserve the aspect ratio of your image, simply tap on the chain icon located between the width and height input fields. This will ensure that when you adjust one dimension, the other adjusts proportionally.