How to

How to use Image Format Conversion

This tool converts PNG, JPEG, WebP, BMP, GIF, AVIF, HEIC, and SVG images in the browser. Add multiple images, choose output format and quality, compare converted previews with the originals, then download results individually or as a ZIP. It is useful for HEIC conversion, WebP / AVIF optimization, and SVG raster export.

Use Image Format Conversion

Use Cases

When to use it

Convert HEIC images from iPhone
Convert images to WebP or AVIF before publishing on a site
Standardize image delivery formats quickly
Convert GIF to WebP to reduce file size
Preserve PNG transparency while converting to another format
Export SVG as a raster image such as PNG or JPEG

Capabilities

What this tool can do

Convert between major image formats
Accept image inputs including HEIC and SVG
Preview before and after conversion
Convert and save images immediately
Adjust compression with a quality slider
Preserve PNG transparency during conversion

Guide

How to use each screen area

Learn how to use each screen area, including settings, input, previews, results, and saving.

01 HOWTO

Load multiple images and select targets

Select images in the settings pane, then use the checkboxes in the conversion list to choose which ones to convert.

What this area does

Choose or drag multiple images in Settings > Image file
All images appear in the conversion list on the right
Toggle each checkbox to include or exclude individual images
Use Select all or Clear selection to update targets in bulk

Where to use it

Image file

Use the Image file area in the left pane to choose or drop multiple source images.

Select targets

Toggle the checkboxes in the conversion list to include or exclude images from the next conversion.

02 HOWTO

Set output format and quality

Select PNG, JPEG, WebP, or AVIF for the target use, then adjust quality when the format supports it. Settings apply to all selected images.

What this area does

Choose output format from the chips in the left pane
Adjust quality for JPEG, WebP, or AVIF
Confirm PNG quality is fixed
Settings apply to all currently selected images

Where to use it

Output format

Choose PNG / WebP for transparency or JPEG / WebP / AVIF for lighter photo output.

Quality

Use the quality slider to balance appearance and file size. PNG shows a fixed state.

Convert images

Click Convert images in the top toolbar to convert all selected images at once.

03 HOWTO

Run conversion and review result cards

Click Convert images to process the selected files. Each result card shows the converted preview, output size, and status.

What this area does

Converted preview appears in each result card
Output size and status are shown in each card footer
Failed images show the error reason in the card
A download button appears for each completed card

Where to use it

Result card

Each card shows the converted preview, output size, and completion status individually.

Individual download

A download button appears in the card for each successfully converted image.

04 HOWTO

Download individually or as a ZIP

Download each image from its card, or use Download all to get every completed image in a single ZIP file.

What this area does

Download completed images individually from each card
Download all completed images as a ZIP
Change format or quality and convert again to update results
Use the Download all button in the top toolbar or right pane

Where to use it

Download all

Click Download all in the right pane header or the top toolbar to save all completed images as a ZIP.

Review format

Switch the output format if the result does not fit the destination.

Convert again

Run Convert images again after changing settings to update the selected results.

Notes

Important points are grouped with reasons so you can make decisions before using the tool.

Check

Review the converted preview before saving

Transparency, colors, text, and fine lines can change depending on the format and quality. Compare before and after before downloading.

Check

Avoid JPEG when you need transparency

JPEG cannot keep transparency. Choose PNG or WebP when the transparent background must remain.

Check

Adjust quality gradually

JPEG, WebP, and AVIF become smaller as quality decreases, but artifacts may appear. Use the preview and output size together.

FAQ

Questions about Image Format Conversion

Questions that make decisions easier before use are summarized first.

Are image files sent externally?

Images can be converted and saved directly in the browser. If external communication is ever required, it will be clearly indicated on screen.

Will image quality change after conversion?

Quality depends on the target format. Lossy formats such as JPEG, WebP, and AVIF may change the appearance, while lossless formats such as PNG are more likely to preserve the original look.

Can it convert HEIC files?

Yes. HEIC images from iPhone can be converted to PNG, JPEG, and other formats entirely in the browser.

How does SVG conversion work?

SVG is rendered as a raster image such as PNG or JPEG. Vector information is output as pixels, so scalability is lost after conversion.

Is PNG transparency preserved after conversion?

Converting to JPEG removes transparency. To keep transparency, choose PNG or WebP as the output format.

Can I see the file size before and after conversion?

The output size is shown next to the converted preview. You can adjust the format and quality slider while watching the size change.

Next guides

Related guides

Related guides are listed next so you can continue without getting lost.

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Learn where to load an image, crop, resize, keep aspect ratio, choose format and quality, preview, copy, and download.

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Learn where to load multiple images, choose output format, select targets, remove backgrounds, review result cards, download individually, download as ZIP, and retry.

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How to use Image Format Conversion

When to use it

What this tool can do

How to use each screen area

Load multiple images and select targets

What this area does

Where to use it

Image file

Select targets

Set output format and quality

What this area does

Where to use it

Output format

Quality

Convert images

Run conversion and review result cards

What this area does

Where to use it

Result card

Individual download

Download individually or as a ZIP

What this area does

Where to use it

Download all

Review format

Convert again

Notes

Review the converted preview before saving

Avoid JPEG when you need transparency

Adjust quality gradually

Questions about Image Format Conversion

Are image files sent externally?

Will image quality change after conversion?

Can it convert HEIC files?

How does SVG conversion work?

Is PNG transparency preserved after conversion?

Can I see the file size before and after conversion?

Related guides

How to Use Image Compression

How to use Image Crop & Resize

How to use Image Background Removal