Free Image Converter, Compressor & Resizer

What Is an Image Converter?

An image converter changes a picture from one file format to another, such as PNG to WebP or HEIC to JPG. Each format has a job. PNG keeps sharp edges and transparency, JPG works everywhere, and WebP and AVIF deliver the same visual quality at far smaller file sizes.

The Dezire Lab Image Converter, Compressor and Resizer combines conversion, compression, resizing and light editing in one tool, so you don’t need to juggle separate apps.

Why Convert and Compress Images?

Images are usually the heaviest part of a web page. Heavy images slow your site, hurt your Core Web Vitals and cost you rankings and visitors. Converting images to modern formats and compressing them is one of the quickest wins in website speed optimization and technical SEO.

Smaller images also give you:

• Faster loading on mobile and slow connections
• Better Largest Contentful Paint (LCP) scores
• Lower hosting and bandwidth usage
• Files that fit email, form and upload limits
• More free storage on your phone and computer

Features of the Dezire Lab Image Converter

Convert between popular image formats

Upload JPG, PNG, WebP, AVIF, GIF, BMP, TIFF, HEIC, SVG or ICO files and convert them to JPG, PNG, WebP or AVIF. You can also keep each file’s original format and only compress or resize it.

Compression with quality control

Choose a Low, Medium, High or Best preset, or fine-tune the quality slider for the exact balance of size and sharpness you want.

Compress to a target file size

Turn on the target file size option and the tool adjusts quality for you, which is ideal for forms, portals and applications with strict size limits.

Resize your way

Resize by percentage, by width, by height, or to a custom size or preset. Keep the original size when you only want to convert or compress.

Crop, rotate and flip

Rotate left or right, flip horizontally or vertically, and crop individual images from the Edit button on each file.

Adjust brightness, contrast and saturation

Make quick colour corrections before you download, with a one-click reset if you change your mind.

Transparent background control

Keep transparency in PNG, WebP and AVIF, or fill transparent areas with any background colour you choose. JPG doesn’t support transparency, so it always uses a fill colour.

Bulk conversion with ZIP download

Add many images at once, convert them together and download everything as a single ZIP. A live counter shows images converted, total size saved and percentage reduction.

Advanced options for power users

• File name template: Rename outputs automatically with a template such as {name}.
• Print resolution (DPI): Set the DPI for print-ready images.
• Keep camera metadata: Optionally keep EXIF data when converting JPG to JPG. Metadata is removed by default for privacy and smaller files.
• Batch and file size limits: Set the maximum number of images per batch and the maximum file size.
• Background workers: Keeps the page responsive on large batches.
• Remember my settings: Save your preferences in your browser for next time.

Private, with no signup

Your images are processed on your own device and are not uploaded by this converter, so personal photos and client work stay with you.

Paste and drag-and-drop

Drop files in, click to browse, or paste an image straight from your clipboard with Ctrl+V.

How to Convert, Compress and Resize Images Online

1. Add your images. Drag and drop, click to browse, or paste with Ctrl+V.
2. Pick the output format on the Convert tab: Original, JPG, PNG, WebP or AVIF.
3. Set quality or a target file size. Use the presets, the slider, or the target size toggle.
4. Resize on the Resize tab if you need different dimensions.
5. Edit if needed with rotate, flip, crop and colour adjustments.
6. Click Convert images, then download files individually or as a ZIP.

Popular Image Conversions

PNG to WebP

Convert PNG to WebP for much smaller files while keeping transparency. It’s ideal for logos, icons, UI graphics and website banners.

JPG to WebP

JPG to WebP gives you smaller photos at similar quality, which is perfect for blog images, product photos and hero sections.

WebP to JPG and WebP to PNG

Can’t open a WebP file in your editor, email or older software? Convert WebP to JPG or PNG for universal compatibility.

PNG to JPG and JPG to PNG

Turn heavy PNG screenshots into light JPGs, or convert JPG to PNG for editing workflows.

HEIC to JPG

iPhone photos are often saved as HEIC. Convert HEIC to JPG so they open and upload anywhere.

SVG to PNG and SVG to JPG

Rasterize SVG vector files into PNG or JPG for platforms that don’t accept SVG. SVG files are rendered at a minimum of 1024px on the long side for crisp results.

TIFF to JPG, BMP to JPG and GIF to PNG

Convert older or bulky formats like TIFF and BMP into lightweight web-ready images. For animated GIFs, the first frame is used.

JPG and PNG to AVIF

AVIF often produces the smallest files of all. Where your browser supports AVIF output, you can convert JPG or PNG to AVIF for maximum speed.

WebP vs AVIF vs JPG vs PNG: Which Format Should You Use?

WebP is the best all-round choice for websites. It supports transparency, handles photos and graphics well, and works in all major browsers.

AVIF gives the smallest files at excellent quality and is ideal when speed matters most. Support is strong but varies by browser.

JPG is the safest choice for photos when you need compatibility with every app and device.

PNG is best for logos, screenshots and graphics that need transparency or lossless sharpness.

A simple rule: use WebP or AVIF on your website, JPG for sharing photos, and PNG when you need transparency.

How to Compress an Image to a Specific Size

Many government portals, job applications and online forms ask for images under a strict limit, such as 50KB, 100KB or 200KB. Add your image, switch on Target file size, enter the size you need and convert. The tool finds the best quality that fits, so you don’t have to guess with the slider.

Why Use the Dezire Lab Image Converter?

Your images stay on your device. Most online converters upload your files to a remote server. This one processes them in your browser.

It’s fast. With no upload wait, conversion starts immediately, and bulk jobs run in background workers so the page stays smooth.

It’s built by web experts. Dezire Lab is a digital agency specializing in website design, SEO and digital marketing. We built this tool because image optimization directly affects rankings, conversions and user experience.

Image Optimization Tips for Better SEO

• Use WebP or AVIF for website images to improve page speed.
• Resize images to the size they’re actually displayed at instead of uploading 4000px originals.
• Keep most blog and content images under about 150KB where quality allows.
• Use descriptive file names, such as red-running-shoes.webp instead of IMG_4821.webp.
• Add descriptive alt text to every image.
• Compress images before uploading to WordPress or any CMS.
• Test your pages with Google PageSpeed Insights after optimizing.

Want your whole site faster and ranking higher? Dezire Lab offers website design, SEO and digital marketing services built for real business growth.

Frequently Asked Questions

Is this image converter really free?

Yes. It’s completely free, with no signup, watermark or daily limit.

Are my images uploaded to a server?

No. Images are processed on your device and are not uploaded by this converter.

Which formats can I upload?

JPG, PNG, WebP, AVIF, GIF, BMP, TIFF, HEIC, SVG and ICO.

Which formats can I convert to?

JPG, PNG, WebP and AVIF, or you can keep the original format and just compress or resize.

Why is AVIF greyed out in my browser?

AVIF output depends on your browser. If yours doesn’t support it, the option is disabled. Try an up-to-date version of Chrome, Edge or Firefox, or choose WebP instead.

How do I reduce an image to 100KB?

Turn on Target file size, enter 100KB and convert. The tool adjusts quality automatically.

Does it keep transparent backgrounds?

Yes, for PNG, WebP and AVIF. JPG doesn’t support transparency, so transparent areas are filled with your chosen background colour.

How many images can I convert at once?

The default is 50 images per batch with a 50 MB per-file limit, and you can adjust both in the Advanced tab.

Does it remove EXIF and camera metadata?

By default, yes. Metadata is removed and the orientation is applied to the pixels. You can choose to keep camera metadata when converting JPG to JPG.

What happens to animated GIFs?

Only the first frame is used, so the output is a still image.

Can I convert HEIC photos from my iPhone?

Yes. Add the HEIC files and convert them to JPG, PNG or WebP.

Does it work on mobile?

Yes, in any modern browser on phones, tablets and computers.