Converting image formats used to require software like Photoshop or dedicated desktop apps. Today, browser-based converters handle most format conversions instantly — no installation, no account, and no files sent to a remote server. This guide covers the most common conversions, why you might need them, and how to do them in a few clicks.

Why Convert Image Formats?

Different image formats exist for different purposes. You might need to convert for:

Compatibility: HEIC files from iPhones often cannot be opened on Windows or Android without a special app. Converting to JPG makes them universally openable.
File size: Converting a large PNG to JPEG can reduce file size by 60–80% for photographs, with minimal visible quality loss.
Transparency: JPEG does not support transparency. If you need a transparent background, use PNG or WebP.
Web optimization: WebP and AVIF are modern formats that load faster on websites than JPEG or PNG. Converting to WebP can reduce file sizes by 25–35% vs JPEG.
Software requirements: Some tools only accept specific formats (e.g., a website form that only accepts JPG).

Most Common Image Conversions

These are the conversions people need most often:

HEIC to JPG: iPhones shoot in HEIC by default. Convert to JPG for sharing with non-Apple users or uploading to websites that do not accept HEIC.
WebP to PNG: WebP files downloaded from websites cannot always be opened in older software. PNG is universally compatible and preserves transparency.
PNG to JPEG: For photographs stored as PNG, converting to JPEG reduces file size significantly without visible quality loss. Note: PNG transparency is lost.
JPEG to WebP: For web developers, converting images to WebP reduces page load time. WebP is supported in all modern browsers.
RAW to JPG: Camera RAW files (CR2, NEF, ARW) need conversion for sharing or publishing. Use Lightroom or Camera Raw for best results, then Picovert for compression.
TIFF to JPG: Large TIFF files used in print workflows need to be converted to JPEG for web delivery.

How to Convert Images Online — Step by Step

Converting with Picovert's image converter takes three steps:

Upload your image: Drag and drop one or more files onto the converter, or click to browse. Supported input formats include JPEG, PNG, WebP, HEIC, AVIF, BMP, GIF, TIFF, and SVG.
Select the output format: Choose from JPEG, PNG, WebP, AVIF, GIF, or others depending on what you need. If you are unsure, JPEG works for photos and PNG works for graphics.
Download: The conversion runs in your browser. Click download to save the converted file. For batch conversions, all files download as a ZIP.

The entire process is private — files are converted locally in your browser and never uploaded to a server.

HEIC to JPG — iPhone Photo Compatibility

HEIC (High Efficiency Image Container) is Apple's default photo format since iOS 11. It produces smaller files than JPEG at similar quality, but compatibility outside Apple's ecosystem is limited. Common situations where you need to convert:

Uploading photos to a website that rejects HEIC files
Sharing with a contact who cannot open HEIC on Windows or Android
Submitting photos to a service or form that requires JPG
Editing in software that does not support HEIC

Use Picovert's converter to batch-convert multiple HEIC files to JPG at once. No iCloud or Apple account needed.

PNG to JPEG — When to Lose Transparency

PNG supports transparency; JPEG does not. When you convert PNG to JPEG:

Transparent areas become white (or a color you specify)
File size drops significantly for photographic content
Text and graphics may show slight compression artifacts at lower quality settings

Convert PNG to JPEG only for photographs or images without transparency. For logos, icons, or graphics that need a transparent background, keep the PNG format or convert to WebP.

JPEG to WebP — Web Performance

WebP was created by Google to deliver better compression than JPEG for the web. Key facts:

25–35% smaller than JPEG at the same visual quality
Supports transparency (like PNG)
Supported in all modern browsers (Chrome, Firefox, Safari 14+, Edge)
Not ideal for printing — use JPEG or TIFF for print workflows

If you manage a website, converting your JPEG images to WebP can meaningfully reduce page load times. Use Picovert's converter to convert in bulk.

Batch Image Conversion

Converting images one by one is slow. Picovert's converter supports batch uploads — drop in multiple files, select the target format, and download all conversions in a single ZIP file. This is useful when:

Converting a folder of iPhone HEIC photos before uploading to a website
Preparing a batch of product images in WebP for an e-commerce site
Converting multiple screenshots from PNG to JPEG to reduce attachment sizes

Why Browser-Based Conversion Is Better

Compared to uploading files to a cloud converter or installing desktop software, browser-based conversion has these advantages:

Private: Files never leave your device. No risk of personal photos being stored on a third-party server.
No installation: Works on any device with a modern browser — Windows, Mac, iPhone, Android.
Fast: No upload time — conversion happens using your device's own processor.
Free: Picovert's converter is free with no limits on file count.

Ready to convert? Open Picovert's image converter and drag in your files.