Image Converter

Convert images between any format — directly in your browser

Our free online image converter lets you transform pictures between PNG, JPG, JPEG, WebP, GIF, BMP, HEIC and AVIF formats without installing software, creating an account, or uploading a single byte to a server. Every conversion happens locally in your browser using the modern Canvas and WebCodecs APIs, so even confidential photos, business assets, and personal pictures stay completely private on your device.

Whether you need to convert iPhone HEIC photos so you can share them on Windows, shrink large PNGs into modern WebP for faster website loading, or batch‑convert hundreds of product images into a uniform JPG library, this tool handles it instantly. Quality and compression settings are exposed so you can balance file size against visual fidelity, and bulk processing means you are never stuck converting one image at a time.

Photographers, web designers, marketers, eCommerce managers, students writing reports, and developers preparing image assets all rely on fast, format‑agnostic conversion. Instead of stitching together command‑line tools or paying for desktop apps, you get an instant, professional pipeline that works on any device with a modern browser — Mac, Windows, Linux, Chromebook, Android, and iPad alike.

Why use Image Converter?

Processed in your browser

Files are converted in your browser and are not uploaded to a ToolsGuru server.

Batch processing built‑in

Drop dozens of files at once and convert the whole queue with a single click.

Modern format support

Includes HEIC from iPhones, WebP and AVIF for the modern web, plus the classics like PNG, JPG, GIF and BMP.

No software, no signup

Runs in any modern browser on any operating system. There is nothing to install and no account to create.

How to use Image Converter

1
Upload your images
Drag and drop one or many files onto the upload area, or click to browse. Files never leave your device.
2
Choose the output format
Select PNG, JPG, WebP, AVIF, GIF, BMP or HEIC. Different formats trade off quality, file size, and compatibility.
3
Adjust quality if needed
For lossy formats like JPG and WebP, slide the quality control to balance crispness against final file size.
4
Convert and download
Click convert; results appear instantly. Download each file individually, or grab the entire batch as a single ZIP archive.

Common use cases

iPhone HEIC to JPG

iPhones save photos in HEIC by default, which Windows and many web platforms don't open natively. Convert them to universally‑supported JPG in seconds.

Optimize images for the web

Convert PNGs and JPGs to WebP or AVIF for dramatically smaller file sizes and faster website load times — vital for SEO and Core Web Vitals.

Standardize a photo library

Bulk‑convert mixed format archives into one consistent format for cleaner backups, easier sharing, or eCommerce product catalogs.

Prepare graphics for documents

Strip transparency by converting to JPG before pasting into Word, PowerPoint, or PDF for predictable rendering.

Worked example: Sunday wedding album → print-shop JPGs

A photographer shot 184 HEIC files on an iPhone 15 during a garden ceremony in Kent. The print shop’s Windows PC would not open HEIC, and the couple did not want the album sitting on a random converter’s servers. They dragged the whole folder into this converter, chose JPG at quality 88, and downloaded a ZIP of matching filenames (IMG_4021.jpg, and so on).

That quality setting kept skin tones usable for 6×4 prints while cutting the batch from about 1.9 GB to roughly 410 MB — small enough to copy onto the shop’s USB stick. Transparency was not needed, so JPG was the right target; WebP would have been smaller but the shop’s RIP software does not accept it.

Limitations

Browser memory has to hold decoded bitmaps. Extremely large RAW-adjacent files or a batch of 50+ 48-megapixel images can stall a phone tab.
HEIC support depends on the browser’s codecs. Safari is usually fine; some Chromium builds need a recent version.
Conversion is raster-to-raster. It will not recover a smaller file back into a lossless original, and it will not edit EXIF GPS unless the encoder copies metadata (many canvas pipelines strip it).
Animated GIFs may flatten to a single frame depending on the output format.

When not to use Image Converter

Do not use this as a colour-managed prepress pipeline. If you need CMYK, ICC profiles, or soft-proofing, use desktop software such as Photoshop or a RIP.
Skip it for camera RAW (.CR2, .NEF, .DNG). Convert those in a photo editor first.
If a client contract forbids any web app touching the files, use a local CLI (ImageMagick) even though this page still does not upload — some legal teams only accept named desktop tools.

Features at a glance

Supports PNG, JPG, JPEG, WebP, AVIF, GIF, BMP, HEIC and HEIF
Drag‑and‑drop with batch conversion
Adjustable quality and compression
Download single files or ZIP archives
Preserves original resolution and color depth
No watermarks, no ads inside results
Works fully offline once page is loaded
Mobile, tablet and desktop friendly

Frequently asked questions

How do I convert PNG to JPG online for free?

Upload your PNG file using our Image Converter, select JPG as the output format, then click Convert. The conversion happens entirely in your browser — no file is uploaded to any server.

Can I convert HEIC files to JPG online?

Yes. Our Image Converter supports HEIC to JPG, HEIC to PNG, and HEIC to WebP conversion directly in your browser without any app installation.

Is there a file size limit for converting images?

There is no server-side limit because all conversion happens in your browser. The practical limit depends on your device's available memory, typically up to several hundred MB per image.

Can I convert multiple images at once?

Yes. Our tool supports batch image conversion. Upload multiple files, choose your output format, and all images are converted simultaneously.

Your privacy matters

Image Converter is designed to run in your web browser. File and text tools process bytes in memory on your device rather than uploading them to a ToolsGuru converter API. Network requests you still see are the page itself, analytics, and ads — not a copy of your document sitting in our logs. How we process files, and how to check.

Privacy & Security

Supported Features